WO2005093119A1 - シリコン膜形成装置 - Google Patents
シリコン膜形成装置 Download PDFInfo
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- WO2005093119A1 WO2005093119A1 PCT/JP2005/005661 JP2005005661W WO2005093119A1 WO 2005093119 A1 WO2005093119 A1 WO 2005093119A1 JP 2005005661 W JP2005005661 W JP 2005005661W WO 2005093119 A1 WO2005093119 A1 WO 2005093119A1
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- Prior art keywords
- film forming
- chamber
- silicon film
- film
- silicon
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
- C23C14/165—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon by cathodic sputtering
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/3471—Introduction of auxiliary energy into the plasma
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/54—Controlling or regulating the coating process
- C23C14/548—Controlling the composition
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
- H01J37/321—Radio frequency generated discharge the radio frequency energy being inductively coupled to the plasma
Definitions
- the present invention relates to an apparatus for forming a silicon film.
- Silicon films are used, for example, as a material for TFT (thin film transistor) switches provided in pixels of a liquid crystal display device, and for manufacturing various integrated circuits and solar cells. It is also expected to be used as a non-volatile memory, a light emitting device, and a photosensitizer.
- TFT thin film transistor
- Various methods of forming a silicon film are known, for example, a method of forming an amorphous silicon film at a relatively low temperature by various CVD methods and PVD methods, and an amorphous silicon film thus formed.
- a post-treatment for example, a heat treatment at about 100 ° C. or a long time heat treatment at about 60 ° C. (TC) to form a crystalline silicon film
- the temperature of the substrate to be formed is set at 600 ° C.
- TC 60 ° C.
- a method in which a crystalline silicon film is formed by a CVD method such as a plasma CVD method or a PVD method such as a sputtering evaporation method under a low pressure while maintaining the temperature at 700 ° C or higher.
- a method in which the film is crystallized by performing a heat treatment.
- the film formation speed is not always satisfactory.
- a film obtained by diluting a silane-based gas with hydrogen difluoride (SiF) or the like under a plasma is used.
- SiF hydrogen difluoride
- the formation has an advantage that a silicon film can be formed at a relatively low temperature, a silane-based gas is diluted with a hydrogen gas or the like and used, so that the film formation rate is reduced accordingly.
- an expensive substrate for example, a quartz glass substrate
- a substrate on which a film is formed In a method of exposing a substrate on which a film is to be formed to a high temperature, an expensive substrate (for example, a quartz glass substrate) capable of withstanding a high temperature must be employed as a substrate on which a film is formed. It is difficult to form a silicon film on a low-melting glass substrate. Therefore, the production cost of the silicon film is increased in terms of substrate cost. The same problem occurs when the amorphous silicon film is heat-treated at a high temperature.
- a crystalline silicon film When an amorphous silicon film is subjected to laser annealing, a crystalline silicon film can be obtained at a relatively low temperature.However, a laser irradiation step is required, or a laser beam having a very high energy density is irradiated. In this case, the manufacturing cost of the crystalline silicon film also increases because of the necessity. In addition, it is difficult to uniformly irradiate each part of the film with a laser beam, and furthermore, the laser irradiation may cause desorption of hydrogen and roughen the film surface, which makes it difficult to obtain a high-quality crystalline silicon film. It is difficult.
- a desired silicon film can be formed at a relatively low temperature and at a low cost, and the start of film formation can be performed smoothly, and a desired silicon film can be formed by increasing the film forming speed at least accordingly.
- An object is to provide a silicon film forming apparatus.
- the present invention can form a desired silicon film at a relatively low temperature and at a low cost, and can smoothly start film formation and improve a film formation speed from the start of film formation to the end of film formation. It is an object to provide a silicon film forming apparatus capable of forming a desired silicon film by using the method.
- the present invention also provides a silicon film forming apparatus having such an advantage, It is another object of the present invention to provide a silicon film forming apparatus capable of smoothly moving and positioning a film-forming article in a film forming chamber with high accuracy, and thus capable of forming a silicon film smoothly. Disclosure of the invention
- the present invention provides a film forming chamber for installing a film-forming article, a silicon sputter target installed in the film forming chamber, and a gas supply having a hydrogen gas supply circuit for supplying hydrogen gas into the film forming chamber.
- a high-frequency power applying apparatus for applying high-frequency power to the hydrogen gas supplied from the hydrogen gas supply circuit into the film formation chamber to generate inductively coupled plasma, wherein the plasma is used to apply a chemical to the silicon sputter target.
- a silicon film forming apparatus which forms a silicon film on a film formation object set in the film formation chamber by spattering.
- an article to be formed is disposed in a film forming chamber, and a hydrogen gas is introduced into the film forming chamber from a hydrogen gas supply circuit of a gas supply device. Is applied to generate inductively coupled plasma, thereby making the deposition chamber rich in hydrogen radicals and hydrogen ions, and subjecting the plasma to chemical sputtering (reactive sputtering) of a silicon sputter target.
- a silicon film can be formed on the article to be coated.
- a film can be formed at a relatively low temperature, for example, a silicon film can be formed on an inexpensive low-melting glass substrate having a heat resistance temperature of 500 ° C. or lower, and the silicon film can be formed at a lower cost.
- nuclei or seeds for the silicon film to grow on the article to be formed are formed smoothly by chemical sputtering using inductively coupled plasma of a silicon sputter target.
- the formation of a silicon film is started smoothly, and thereafter the silicon film is formed smoothly. Therefore, at least as much as the film formation is facilitated, The speed of silicon film formation can be increased.
- Ha (656 nm) is the emission spectrum intensity of hydrogen that shows a peak at a wavelength of 6556 nm by plasma emission spectroscopy
- HjS (486 nm) is the emission of hydrogen that shows a peak at a wavelength of 486 nm.
- the abundance of Ha and H means the abundance of hydrogen radicals.
- the plasma potential of the hydrogen gas plasma formed by the inductive coupling method is, for example, about 20 eV, depending on the conditions, and the plasma potential is extremely low in any case. Rings are unlikely to occur.
- the present inventors have observed the presence of Si (288 nm) by plasma emission spectroscopy. This is due to chemical sputtering (reactive sputtering) by hydrogen radicals and hydrogen ions on the silicon sputter target surface.
- a crystalline silicon film can be formed by controlling the amount of introduced hydrogen gas, high-frequency power (especially the frequency and power level), and the pressure of the film forming gas in the film forming chamber. It is.
- a gas plasma having a Ha / SiH * of 0.3 to 1.3 is generated as a plasma from hydrogen gas, whereby the silicon sputtering target is chemically sputtered and sputtered.
- a gas obtained by diluting a conventional silane-based gas with hydrogen gas can be used.
- a high-quality crystalline silicon film with crystallinity, low surface roughness, and a hydrogen-terminated silicon-bonded surface is formed, similar to the crystalline silicon film formed by the plasma Is done.
- S i H * is generated by the sputtering of a silicon sputter target by hydrogen gas plasma generated by applying high-frequency power to the hydrogen gas introduced into the film formation chamber, and is generated in the gas plasma.
- ⁇ ⁇ / S i H * indicates the abundance of hydrogen radicals in the plasma, and when this value becomes smaller than 0.3, the crystallinity of the formed film decreases and becomes larger than 1.3. If it does, film formation becomes more difficult.
- ⁇ The value of ⁇ / SiH * can be obtained based on the measurement results of the emission spectra of various radicals measured with a plasma emission spectrometer.
- the control of ⁇ / SiH * can be typically performed by controlling the magnitude of the high-frequency power applied to the introduced gas and the pressure of the film forming gas.
- a high-frequency antenna for applying high-frequency power may be provided outside the film formation chamber, or may be provided in the film formation chamber for more efficiently applying power.
- the wall of the deposition chamber facing the high-frequency antenna may be formed of a dielectric material.
- the antenna conductor When the antenna conductor is installed in a film forming chamber, the antenna conductor is preferably covered with an electrically insulating material (for example, alumina).
- an electrically insulating material for example, alumina.
- the antenna can be prevented from being sputtered by the charged particles from the plasma due to the self-bias, and the sputtered particles derived from the antenna are mixed into the film to be formed.
- the antenna shape There is no particular limitation on the antenna shape. For example, various shapes such as a rod shape, a ladder shape, a U-shape, a ring shape, a half ring shape, a coil shape, and a spiral shape can be adopted.
- the silicon sputter target can be provided in various states. For example, all or part of the part of the film forming chamber that is exposed to plasma (for example, the inner wall of the film forming chamber that is easily exposed to plasma) is formed with a silicon film, a silicon wafer is attached, The silicon sputter target may be covered with silicon by attaching a piece of silicon or the like. A silicon sputter target independent of the film formation chamber itself may be provided in the film formation chamber.
- the silicon sputter target must be placed at least on the high-frequency antenna, which is the plasma generation region, to smoothly perform chemical sputtering. It is preferably provided at a position facing, in other words, a position near the high-frequency antenna.
- a silicon sputter target provided on the high-frequency antenna for example, a cylindrical silicon sputter that surrounds the electrode and is open to the object on which a film is to be formed.
- a silicon sputter target for example, a cylindrical silicon sputter that surrounds the electrode and is open to the object on which a film is to be formed.
- the plasma potential is preferably about 15 eV to 45 eV, and the electron density is 1 Ocm— 3 to 1 eV. 0 12 cm—preferably about 3 .
- the pressure in the film forming chamber for forming the crystalline silicon film is preferably about 0.6 Pa to 13.4 Pa (about 5 mTorr to about 100 mTorr).
- the plasma potential and the electron density of the plasma can be controlled by adjusting at least one of the magnitude, frequency, film forming pressure, and the like of the high frequency power to be applied.
- the high-frequency antenna will be further described.
- the high-frequency antenna when it is installed in the film formation chamber, it extends from the outside of the film formation chamber to the film formation chamber, branches electrically in parallel in the film formation chamber, and terminates at each branch portion.
- the deposition chamber potential can be set to the ground potential.
- the portion outside the deposition chamber does not contribute to plasma generation, so this portion can be made as short as possible and can be directly connected to the matching box in the high-frequency power application device, and the antenna end can be formed without being pulled out of the deposition chamber. Since the antenna is directly connected to the film chamber, the overall length of the antenna can be shortened accordingly, and the parallel wiring structure that electrically branches in parallel in the film formation chamber is adopted. It can be reduced accordingly.
- a desired plasma can be generated by suppressing inconveniences such as abnormal discharge and poor matching.
- the high-frequency antenna is preferably compact and efficient in using high-frequency power in order to save the space inside the film-forming chamber. Therefore, the high-frequency antenna may have a three-dimensional structure. As a typical example, a first portion extending from the outside of the film forming chamber to the film forming chamber through the chamber wall, and radially branching from the inner end of the first portion to the film forming chamber and extending to the film forming chamber wall. And a plurality of second portions extending toward the end of each of the second portions. High-frequency antennas that are directly connected can be mentioned.
- the second part group in such an antenna has a shape such as a U-shape, a U-shape, or a semi-circle as a whole, or an antenna part having such a shape is formed at a predetermined center angular interval around the first part. Examples such as a combination in a cross shape or the like can be given.
- the high-frequency power applied to the high-frequency antenna may have a frequency of, for example, 13.56 MHz for commercial use, but the high-frequency antenna of the type described above has a low inductance as described above.
- a material having a high value of about 40 MHz to 100 MHz, or even a value of several hundred MHz, for example, about 60 MHz may be used. In this way, high-frequency power having a high frequency can be used, and thereby it is possible to improve plasma characteristics in terms of plasma density and the like.
- the gas supply device may include a silane gas supply circuit.
- the silane gas can be supplied from the circuit into the film formation chamber when forming the silicon film, whereby the silicon film can be formed at a higher speed.
- the silane gas supply circuit may supply the silane gas to the film forming chamber simultaneously with the supply of the hydrogen gas from the hydrogen gas supply circuit, or may start the chemical sputtering by the hydrogen gas plasma of the silicon sputtering target.
- a silane gas may be supplied into the film formation chamber in a state where the nucleus or seed of the silicon film has been formed by chemical sputtering by the target hydrogen gas plasma.
- the silane gas supply circuit stores the silane gas prior to the start of the silane gas supply.
- the gas supplied from the gas reservoir at one time can easily flow into the film forming chamber at once, and the effect of the silane gas supply can be more reliably provided from the beginning of the silane gas supply. As a result, higher-speed film formation becomes possible.
- the silicon film forming apparatus includes the film forming chamber for moving the article to be formed between a first position for forming a silicon film and a second position different from the first position. And a lifting mechanism for raising and lowering the transport member, and a counter balance mechanism.
- Such an article transport member may be capable of moving up and down with respect to an article holder for holding the article to be deposited at the first position, or may also serve as the article holder. In the latter case, the article holder is moved up and down by the elevating mechanism.
- the elevating mechanism As a typical example of the lifting mechanism,
- a transfer member support member that supports the transfer member and penetrates the film formation chamber wall so as to be able to move up and down;
- a bellows support member provided at an end portion of a portion of the support member for the transfer member that protrudes outside the film forming chamber;
- a telescopic bellows that is connected and hermetically surrounds a portion of the support member for the transport member that protrudes outside the deposition chamber;
- a first load applied to the drive unit when the film forming chamber pressure is an internal pressure at the time of setting a reduced pressure atmosphere for forming a silicon film.
- a reaction force that cancels out the second load applied to the driving unit can be exemplified.
- the article to be film-deposited into the film forming chamber should be arranged at the first position for the film forming process by the transport member driven by the lifting mechanism. Can be.
- the article after film formation is moved to a second position different from the first position, for example, to a position for carrying in and out processing of the article to be film-formed between the inside and outside of the film-forming chamber by moving the conveying member by the lifting mechanism.
- the next process (for example, a process of unloading a film-formed article or a process of loading a new film-formed article) can be performed.
- the counter balance mechanism is configured so that at least the first load applied to the drive unit of the elevating mechanism and the pressure in the film formation chamber when the pressure in the film formation chamber is the internal pressure at the time of setting the reduced pressure atmosphere for film formation are set in the pressure reduction atmosphere. When the internal pressure at the time is a predetermined high pressure, a reaction force for canceling the second load applied to the drive unit is generated.
- the first load is a condition in which the inside of the film formation chamber is set to a reduced pressure atmosphere (atmospheric pressure reduced from the atmospheric pressure) for film formation, and the diameter of the telescopic bellows is determined by a difference in pressure between the inside and outside of the film formation chamber. (Cross-sectional area) Lowering the conveying member by the conveying member, the conveying member supporting member and the bellows supporting member, or the article supported by the conveying member from the force f applied to the portion of the bellows supporting member corresponding to The member that works in the direction to be moved.
- the second load is when the film formation chamber pressure is a predetermined high pressure from the internal pressure at the time of setting the reduced pressure atmosphere, and is typically an atmospheric pressure (including not only the atmospheric pressure itself but also substantially the atmospheric pressure).
- the load is mainly based on the member gravity WF.
- the drive unit need only be an inexpensive one with a small capacity (such as the lifting drive force of the transport member and the robustness of the structure). As a result, a film forming apparatus can be provided at a lower cost.
- the load canceling action of the counterbalance mechanism allows the drive unit to move the transport member lightly, which makes it easier to stop the transport member when the drive unit stops driving, and reduces the impact when stopping. That is, the transport member can be accurately stopped at the first position or the second position, and the position of the article to be processed on the transport member can be suppressed from being shifted or damaged by stopping the transport member with less impact.
- Examples of the force counterbalance mechanism include the following: a biston cylinder device having a biston rod connected to a support member of the transport member;
- This is a counterbalance mechanism including a fluid circuit. It is preferable that such a working fluid circuit can maintain the state of the biston cylinder device in the state immediately before the power failure even at the time of the power failure.
- such a working fluid circuit includes an electromagnetic switching valve for switching the working fluid flow path, and when the electromagnetic switching valve is not energized, the valve position at the time of energization immediately before the solenoid switching valve is maintained, so that even when a power failure occurs, What is necessary is just to be able to maintain the state of the biston cylinder device just before the power failure.
- Examples of the drive unit in the elevating mechanism include a unit including a rotary motor and a power transmission mechanism that converts the rotational motion of the motor into a linear motion and transmits the linear motion to the transport member support member.
- a servomotor with a brake that exerts a braking force during a power outage as the rotation motor can be exemplified.
- a silicon film forming apparatus capable of forming a silicon film of any type can be provided.
- a desired silicon film can be formed at a relatively low temperature and at a low cost, and the film formation can be smoothly started, and the film formation rate from the start of the film formation to the end of the film formation can be increased.
- a silicon film forming apparatus capable of forming a desired silicon film by improving the quality.
- a film forming apparatus having such an advantage, and furthermore, it is possible to smoothly move and position an article to be formed in a film forming chamber with high accuracy, and accordingly, it is possible to smoothly form a silicon film.
- a silicon film forming apparatus which can be easily performed.
- FIG. 1 is a view showing a schematic configuration of an example of a silicon film forming apparatus according to the present invention.
- FIG. 2 is a view showing the result of evaluating the crystallinity of a silicon film formed by the silicon film forming apparatus of FIG. 1 by laser Raman spectroscopy.
- FIG. 3 is a diagram showing a schematic configuration of another example of the silicon film forming apparatus according to the present invention, in which the article holder is at an elevated position.
- FIG. 4 is a view showing the film forming apparatus shown in FIG. 3 with an article holder in a lowered position.
- FIG. 5 is a block diagram schematically showing a control circuit of the film forming apparatus shown in FIG.
- FIG. 6 is a flowchart showing an outline of an example of the operation of the control unit shown in FIG.
- FIG. 7 is a view showing another example of the high-frequency antenna together with a part of the film forming apparatus.
- FIG. 8 is a diagram showing an example of a three-dimensional structure of the antenna of FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 shows a schematic configuration of an example of a silicon film forming apparatus according to the present invention.
- the film forming apparatus A shown in FIG. 1 includes a film forming chamber 10, in which an article holder 3, a high-frequency antenna 1 above the holder, and a silicon sputtering target 2 facing the antenna are installed. ing.
- the antenna 1 is covered with an insulating film made of alumina and having a thickness of 100 nm or slightly thicker.
- the antenna 1 is connected to a high-frequency power supply PW via a matching box MX.
- the power supply FW is a variable output power supply, and supplies high-frequency power of frequencies 13 and 56 MHz in this film forming apparatus.
- the power supply frequency does not need to be limited to 13.56 MHz, and is set, for example, in the range of about 40 MHz to 100 MHz, or even 100 MHz. May be.
- the antenna 1, the matching box MX and the high frequency power supply PW constitute a high frequency power application device.
- the article holder 3 includes a heater 4 for heating the article to be deposited (the substrate S in this example).
- the article holder 3 is grounded together with the film forming chamber 10.
- the silicon sputter target 2 is formed in a cylindrical shape, faces the antenna 1 so as to surround the antenna 1, and is attached and held to a ceiling wall 10 'of the film forming chamber 10.
- the lower end of the cylindrical target 2 is open toward the holder 3.
- a silicon sputter target may also be provided on the ceiling wall portion of the film forming chamber surrounded by the target 2.
- Such a target can be provided, for example, by holding a silicon wafer on the ceiling wall portion by sticking or the like.
- the silicon sputtering target be provided at a position where the silicon sputtering target easily comes into contact with the plasma formed in the film formation chamber 10.
- a gas inlet nozzle N 3 is provided on the ceiling wall 10 ′ outside the evening gate 2 in the film forming chamber 10, and the nozzle N 3 has an electromagnetic on-off valve AV 6, a mass flow controller MFC 2, A hydrogen gas cylinder B2 is connected to the piping via an electromagnetic on-off valve AV5.
- an exhaust device EX that exhausts from inside the film formation chamber 10 is connected to the film formation chamber 10, and an emission spectrometer SM for measuring the state of the plasma formed in the film formation chamber 10 Is also attached.
- the exhaust system EX is equipped with a conductance valve CV that adjusts the amount of exhaust gas, and is connected to the deposition chamber 10 via the valve. It consists of a vacuum pump PM connected by piping.
- the substrate S to be film-formed is placed on the article holder 3 in the film-forming chamber 10, and hydrogen gas is introduced from the hydrogen gas supply circuit 102 'into the film-forming chamber.
- High-frequency power is applied to the gas from the power supply PW via the matching box MX to generate inductively coupled plasma, thereby making the inside of the film forming chamber 10 rich in hydrogen radicals and hydrogen ions, and the plasma is made of silicon.
- a silicon film can be formed on the substrate S by subjecting the sputter target 2 to chemical sputtering (reactive sputtering).
- the silicon film can be formed at a relatively low temperature.
- a silicon film can be formed on an inexpensive low-melting glass substrate having a heat-resistant temperature of 500 ° C. or less, and the silicon film can be formed at a lower cost.
- nuclei or seeds for the silicon film to grow on the substrate S are formed smoothly by chemical sputtering using the inductively coupled plasma of the silicon sputter target 2, and starting from this, The formation of the silicon film is started smoothly, and thereafter the silicon film is formed smoothly. At least as much as the film formation is smoothed, the silicon film can be formed at a high speed.
- one or more of hydrogen gas introduced into the film forming chamber 10, high frequency power to be applied (particularly, frequency and magnitude of power), film forming gas pressure in the chamber 10, and the like are used.
- high frequency power to be applied particularly, frequency and magnitude of power
- film forming gas pressure in the chamber 10 and the like are used.
- the deposition gas pressure in the deposition chamber is maintained in the range of 0.6 Pa to 13.4 Pa (about 5 mmT orr to about 100 mm T orr). Do it.
- the pump PM starts exhausting from inside the film formation chamber 10 via the conductance valve CV.
- Conductance valve CV Is adjusted to an exhaust amount in consideration of the film forming gas pressure 0.6 Pa to 13.4 Pa in the film forming chamber 10.
- the valves AV 5 and AV 6 of the hydrogen gas supply circuit 102 are opened, and the mask opening controller MF C A hydrogen gas is introduced into the film forming chamber 10 at a flow rate controlled by the step 2, and a high-frequency power is applied to the high-frequency antenna 1 from the power supply PW, whereby the introduced hydrogen gas is converted into a plasma by an inductive coupling method.
- Ha in the plasma / S i H * is 0.3 to 1.3, and the potential is 1 5 e of flop plasma V ⁇ 4 5 e V, and the electron density in the plasma is 1 0 1 D cm- 3 ⁇ 1 0 Determine the conditions such as high frequency power and hydrogen gas introduction amount of 12 cm- 3 .
- the plasma potential and the electron density in the plasma can be confirmed, for example, by the Langmuir probe method.
- the film is formed according to the conditions.
- the temperature of the film-forming substrate S supported by the holder 3 is set to a relatively low temperature of 50 ° C. or less, for example, about 400 ° C. 4 is set, and the film-forming substrate S is mounted on the holder 3.
- the inside of the film formation chamber 10 is evacuated by the pump PM, and then a predetermined amount of hydrogen gas is introduced into the film formation chamber 10 from the hydrogen gas supply circuit 10 2 ′, and the high frequency power is supplied from the power supply FW to the antenna 1 to the antenna 1.
- the discharge from the antenna 1 is performed by the inductive coupling method, thereby generating the plasma.
- This film is a silicon film that exhibits crystallinity, similar to a conventional crystalline silicon film formed under plasma obtained by diluting a silane-based gas with hydrogen gas. It has a hand-oriented surface.
- Electron density in the plasma 1 0 11 cm one 3
- Film thickness about 500 people
- Figures 3 and 4 3 shows a schematic configuration of the device B.
- Fig. 3 shows the state when the film forming chamber pressure is atmospheric pressure and the article holder 3 is in the ascending position
- Fig. 4 shows the state when the film forming chamber pressure is film forming pressure and the article holder 3 is in the descending position.
- the film forming apparatus B includes a film forming chamber 10, a high-frequency antenna 1, a silicon sputter target 2, and a material holder provided in the film forming chamber, similarly to the apparatus A shown in FIG. 3.
- a high-frequency power application device (high-frequency power supply FW and matching box MX) that applies high-frequency power to the antenna 1, a hydrogen gas supply circuit 102, an exhaust device EX, and a plasma emission spectrometer SM.
- the device B the film formation by Kemi Cal sputtering of the silicon sputter data one Getting sheet 1 by the plasma, monosilane gas (S i H 4) and plasma high speed in combination with a film forming formed by the hydrogen gas (H 2) It can be made into a film.
- the article holder 3 includes a substrate heater 4 and is grounded together with the film forming chamber 10.
- a gas supply device 100 is provided for the film forming chamber 100.
- the gas supply device 100 includes a circuit 101 for supplying a silane gas (SiH 4 ) into the film formation chamber 10 and a circuit 102 for supplying the hydrogen gas.
- the circuit 101 has a silane gas cylinder B1 and a valve MV1, a valve AVI, a mass flow controller MFC1, a valve AV2, and a nozzle N1 sequentially connected to the cylinder B1. Further, valves MV2, AV3, AV4, and nozzle N2 are sequentially connected to a pipe between the valve MV1 and the valve AV1.
- the pipe between the controller MFC 1 and the valve AV 2 and the pipe between the valve MV 2 and the valve AV 3 are connected to each other by a communication pipe.
- Each of these valves is an electromagnetic opening / closing valve that opens when energized and closes when not energized, and the MUSC 1 controller MF C 1 can supply a predetermined flow rate of gas to the controller by energizing the controller.
- the nozzles N 1 and N are provided on the ceiling wall 10 ′ of the film forming chamber 10, It is open.
- valves AV3 and AV4 and the piping connecting them constitute a gas reservoir G R.
- the hydrogen gas supply circuit 102 in the silicon film forming apparatus B includes a hydrogen gas cylinder B 2 and valves MV 3, valve AV 5, a mass flow controller MFC 2, a valve AV 6, and a nozzle N 3 sequentially connected to the hydrogen gas cylinder B 2.
- a valve MV4 is connected in parallel to a series circuit of the valve AV5 and the controller MFCC2.
- valves are also electromagnetic on-off valves that are opened when energized and closed when not energized, and the mass flow controller MFC2 can flow gas at a predetermined flow rate set in the controller by energizing the controller.
- the nozzle N 3 is provided on the ceiling wall 10 ′ of the film formation chamber 10 and opens into the film formation chamber.
- the film forming chamber 10 is connected to the exhaust device EX and the plasma emission spectrometer SM as described above, and is also connected to the pressure sensor PS for detecting the pressure in the film forming chamber.
- the article holder 3 can be moved up and down by an elevating mechanism EL.
- the lift position shown in FIG. 3 that is, the lift facing the openable gate valve GV for loading and unloading the substrate S by the robot (not shown) with respect to the holder 3 in the film forming chamber 10. It can move up and down between the position and the lowering position for film formation shown in FIG.
- the substrate S loaded and mounted on the article holder 3 from outside the film forming chamber can be reciprocated up and down between a position for film formation and a position for substrate loading and unloading processing by lifting and lowering the article holder 3.
- the article holder 3 also serves as an article transport member in the film forming chamber 10.
- the holder elevating mechanism EL includes a support member 41 protruding downward from the holder 3 and penetrating the lower wall of the film forming chamber so as to be able to move up and down, a bellows support plate 6 provided at a lower end of the support member 41, and One end of one end of the support plate 6 and one end of the supportable plate 6 that is extendable and extendable between the lower wall of the membrane chamber 10 and the bellows support plate 6. And an electric support with a brake that drives the unit up and down via a ball screw mechanism. The brake of the motor exerts a braking force during a power failure.
- the support member 41 is a rod-shaped member in this example.
- the motor 7 is attached to a frame 20 connected to the lower wall of the film forming chamber 10.
- the bellows BL is air-tightly connected at the upper end to the lower wall of the film forming chamber, and the lower end is air-tightly connected to the bellows-like support plate 6, and air-tightly supports the part of the support member 41 that has come out of the film forming chamber 10. It has a cylindrical shape to surround.
- the ball screw mechanism rotates a screw rod 7 1 that is rotationally driven by the support motor 7, a nut 8 1 on a bellows support plate 6 to which the screw rod is screwed, and an upper end of the screw rod 7 1. It consists of a bearing 82 that is supported as possible, and the bearing 82 is supported on the frame 20 via a 7-member member.
- the motor 7, the pole screw mechanism, and the like constitute an example of a drive unit that drives the support member 41 via the mouth-piece support plate 6 and the vertical movement of the article holder 3.
- Guide wheels 61, 61 are provided at the opposite end of the bellows support plate 6, and these roll along the guide rails 62 provided on the frame 20.
- the holder elevating mechanism EL described above According to the above, by rotating the motor 7 in the normal direction, the screw rod 71 is driven in the normal direction, whereby the bellows support plate 6 and the rod-shaped support members 41 and the support members 41 that are rising from now on The supported holder 3 can be set to the raised position shown in FIG.
- the motor 7 is rotated in the reverse direction to drive the screw rod 71 in the reverse direction, whereby the screw support 71 is supported by the bellows support plate 6, the support members 41 and 41 that are rising from now on.
- the holder 3 can be set to the lowered position shown in FIG.
- a counter balance mechanism CB is also provided.
- the counter balance mechanism CB includes a piston cylinder device 5 and a working fluid circuit 9 corresponding thereto.
- Biston cylinder device 5 Circuit 9 is a pneumatic circuit and circuit 9 is a compressed air circuit.
- the piston cylinder device 5 and the circuit 5 may use a fluid other than air.
- the piston cylinder device 5 is of a double-acting cylinder type, and its piston rod 52 is connected to the support member 41 supporting the holder 3 by the screw 4 1 1 at the lower end with a screw joint 5 20. It is connected to the holder 3 via the support member 41.
- the compressed air circuit 9 is a 3-port 2-position double solenoid type switching solenoid valve that is sequentially connected to the cylinder tube port on one side of the rod cover of the biston cylinder device 9 9 2. Includes pressure regulating valve 9 13.
- a 3-port 2-position double solenoid type switching solenoid valve 9 21, a lubricator 9 22, and a 3-port 2-position double solenoid type solenoid valve sequentially connected to the cylinder tube port on the head cover side of the piston cylinder device 5.
- the pressure regulating valve 9 13. 9 23 is connected to a compressed air source 90 such as a compressor via a filter 91.
- a muffler 9 14 is provided for the valve 9 11, and a muffler 9 24 is provided for the valve 9 21.
- the compressed air pressure supplied to the rod side port of the cylinder tube is adjusted by the pressure adjusting valve 913, and the inside of the film forming chamber 10 is set to a reduced pressure atmosphere for film formation.
- the article holder 3, the support member 41, and the bellows support are obtained from the force f applied to the bellows support plate 6 corresponding to the diameter (cross-sectional area) of the bellows BL due to the pressure difference between the inside and outside of the film forming chamber 10.
- This is the pressure that applies a reaction force to Biston 51 that cancels the load applied to the motor.
- the compressed air pressure supplied to the head side port of the cylinder tube was adjusted by the pressure adjusting valve 923, and when the inside of the film forming chamber 10 was kept at the atmospheric pressure,
- the reaction force that offsets the member gravity WF by the article holder 3, the support member 41, the bellows support plate 6, etc. in other words, the reaction force that offsets the load applied to the drive unit (motor 7, etc.) based on the force WF.
- This is the pressure given to the piston 51.
- the solenoid SOL 21 When the solenoid SOL 21 is energized, the solenoid valve S 11 is switched off when the solenoid S OL 21 is energized, and the solenoid S ⁇ L 12 is energized while the solenoid S OL 11 is de-energized.
- the air on one side of the rod cover in the cylinder tube is discharged to the atmosphere via the valve 911 and the silencer 914.
- FIG. 5 is a block diagram schematically showing a control circuit of the film forming apparatus B.
- This control circuit includes a microcomputer-based control unit C0NT. High-frequency power supply PW, vacuum pump PM, mass flow controller in gas supply device 100 ⁇
- the control unit CONT receives the pressure information of the film forming chamber from the pressure sensor PS, and an operation panel PA for instructing necessary items such as the start of film formation. It is connected. According to the film forming apparatus B, the formation of the silicon film on the substrate S
- the film formation in which the chemical sputtering of No. 2 and the supply of the monosilane gas are simultaneously performed, the formation of the film in which the chemical sputtering of the target 2 is started first, and then the supply of the silane gas is started can be performed.
- the solenoid SOL I1 of the switching valve 9 1 1 is turned off, SOL 12 is turned on, and the valve 9 is turned on.
- the solenoid SOL1 of 21 is turned on, and SOL22 is turned off (step S1 in FIG. 6).
- the head cover side port of the biston cylinder device 5 is supplied with compressed air that generates a reaction force capable of offsetting the member gravity WF by the article holder 3 or the like, and thus is based on the member gravity WF to the motor 7.
- the motor 7 is rotated forward in a state where the load is cancelled, and the holder 3 is raised, and the holder 3 is arranged at the raised position facing the gate valve GV (S2 in FIG. 6).
- the gate valve GV is opened, the substrate S to be processed is mounted on the article holder 3, and the valve GV is closed again (S3 in FIG. 6).
- the article holder 3 is lowered by the reverse rotation of the motor 7, and the substrate S held by the article holder 3 is placed at the film forming position (S4 in FIG. 6). Even when the article holder is lowered, the load based on the member gravity WF applied to the motor 7 is canceled by the biston cylinder device 5.
- the drive unit composed of the motor 7 and the like can be reduced in size and inexpensive, and the film forming apparatus can be reduced in cost accordingly.
- the lifting of the article holder 3 is performed in a state in which the load applied to the drive unit is offset, the lifting operation of the holder 3 can be performed lightly, and the stopping of the holder 3 due to the motor stop becomes easy.
- the impact at the time of stop is reduced, so that the holder 3 can be accurately stopped at the predetermined lowering position, and the displacement and damage of the substrate S can be suppressed by stopping with less impact.
- the positions of the switching solenoid valves 911 and 91 in the compressed air circuit 9 are maintained at the positions immediately before the power failure, so that the article holder 3 can be prevented from falling and the substrate S supported by the holder 3 Displacement and damage can be prevented.
- the pump FM is turned on to start exhausting from the film forming chamber 10, and the gas supply device 100 has a mask opening in the silane gas supply circuit 101.
- the valves AV1, AV2, AV3, and AV4 are turned on to open and degas, and the controller MFC2 in the hydrogen gas supply circuit 102 is still open. Turn off the valves AV5 and AV6 with the valve turned off to open the gas (S5 in Fig. 6).
- the valve MV 4 can be opened for maintenance and used for venting.
- the solenoid SOL 11 of the switching solenoid valve 9 11 in the compressed air circuit 9 is set in preparation for raising and lowering the material holder 3 when the internal pressure of the film forming chamber 10 is set to a reduced pressure atmosphere for film formation.
- Turn on and turn off SOL I2 turn off solenoid SOL21 of valve 921, and turn on SOL22 (S7 in FIG. 6).
- the motor 7 is operated in a state in which the load based on the force F to the motor 7 can be offset, and the holder 3 can be moved up and down.
- valves MV1, MV2, AV3 are turned on and opened, and the gas reservoir GR is filled with silane gas and stored, and then the valves MV2, AV3 are closed (S in FIG. 4). 8, S9). Continue opening the valves AV1 and AV2, venting and closing them again (S10, S11 in Fig. 6).
- the high-frequency power supply PW is turned on to start applying high-frequency power to the high-frequency antenna 1, and the valve AV 4 in the silane gas supply circuit 101 is opened.
- the silane gas stored in the gas reservoir GR is supplied at once, in other words, at a time, is supplied to the film forming chamber 10 in a rush manner, and at the same time, the mask opening controller MFC 1 is turned on, and the valves AV 1 and AV 1 are turned on.
- Open AV 2 to supply silane gas into the deposition chamber 10 at a flow rate controlled by the controller MFC 1, and at the same time, switch off the MFC 2 controller MFC 2 in the hydrogen gas supply circuit 102.
- the valves MV3, AV5, and AV6 are opened, and hydrogen gas is supplied into the deposition chamber 10 at a flow rate controlled by the controller MFC2 (S12 in FIG. 6).
- the gas introduced into the film forming chamber is converted into a plasma under the application of high-frequency power, and the silicon sputter target 2 is chemically sputtered under the plasma to form a silicon film on the substrate S.
- a silicon film is formed on the substrate S under the plasma of monosilane gas and hydrogen gas.
- the silicon film formation speed is increased.
- a nucleus or a species for promoting the growth of the silicon film is formed on the substrate S by chemical sputtering of the silicon sputter target 2, so that the film formation is started smoothly.
- the monosilane gas (SiH 4 ) is stored in the gas reservoir GR prior to the start of the supply, and at the start of the film formation, the gas reservoir is all at once, in other words, in a pulsed manner. Since the silane gas is supplied into the film forming chamber 10, the silane gas supplied from the gas reservoir GR at once can easily reach the film forming chamber 10 at a time at the start of film formation. The silane gas plasma density at or near the predetermined value. Simultaneously with the supply of the silane gas from the gas reservoir GR, the supply of the silane gas and the hydrogen gas is started at a flow rate controlled by the mass flow controllers MFC1 and MFC2, respectively, into the film formation chamber I0.
- the silane gas and the hydrogen gas are supplied into the film forming chamber 10 at a controlled flow rate, the plasma density at the start of film formation is more reliably at or near a predetermined level. Also, a predetermined plasma density is maintained. As a result, film formation on the substrate S is started smoothly, and thereby, a high-quality film including a film portion formed thereafter can be formed, and the entire film can be formed at a high speed.
- the power supply: PW, the pump PM, and the mass flow controllers MFC1 and MFC2 are turned off.
- Valves MV1, MV3, valves AVI, AV2, AV4, AV5, and AV6 are closed (S14 in Fig. 6)
- motor 7 is rotated forward to raise holder 3 (S6 in Fig. 6).
- the gate valve GV is opened to carry out the film-formed substrate S (S16 in FIG. 6).
- the article holder 3 can be raised even when the torque of the motor 7 is small, and can be performed lightly, and it is easy to stop the holder 3 at the raised position due to the motor stop, and at the time of stopping. Shock is reduced, so that the holder 3 can be accurately stopped at a predetermined ascending position, and the shock can be stopped with less shock to suppress displacement and damage of the film-formed substrate S.
- the positions of the switching solenoid valves 911 and 921 in the compressed air circuit 9 are maintained at the positions immediately before the power failure, so that the article holder 3 can be prevented from jumping up, and the membrane supported by the holder 3 can be prevented. Displacement and damage of the formed substrate S can be prevented.
- the lowering can be performed smoothly and smoothly, and it is stopped at a desired position with high accuracy and with less impact. It is also possible.
- the holder 3 is lowered by the reverse rotation of the motor 7, the gate valve GV is closed (S19 in Fig. 6), and the compressed air is further released.
- the solenoids SOL I2 and SOL21 of the electromagnetic switching valve in the circuit 9 are turned off (S20 in FIG. 6).
- a new substrate S may be mounted on the empty article holder 3 and the film formation may be continued.
- a load / unlock chamber LR is provided for the film forming chamber 10 with the gate valve GV interposed therebetween, and when the substrate S is loaded into the holder 3, the gate valve GV is closed. While maintaining the inside of the chamber 10 at a predetermined film forming pressure, the chamber LR is opened to allow a robot arranged therein to receive the substrate S from the outside, and then the chamber is closed to reach the film forming chamber pressure. After evacuating, open the gate valve GV and transfer the substrate S from the robot to the holder 3.When unloading the substrate on which a film is formed, set the internal pressure of the chamber LR to the internal pressure of the film forming chamber.
- the valve GV may be opened, the film-formed substrate may be received from the holder 3 into the chamber LR, and after closing the valve GV, the chamber LR may be opened and the film-formed substrate may be taken out of the chamber. . Even in this case, since the inside of the film forming chamber 10 may be at atmospheric pressure, it is desirable to provide a counter balance mechanism.
- the film forming conditions were as follows.
- Amount can be selected from 100 c c to 300 c c, but in this example, 2 31 c c
- Substrate to be deposited Al-free glass substrate
- UV reflection surface intensity is the result of UV reflectance measurement using an iUtachi UV-3500 Spectrophotometer manufactured by Hitachi, Ltd.
- a high reflectance (UV reflection surface intensity) means that there are many free electrons. Yes, indicating that it is crystallized.
- Raman spectroscopy analysis revealed a sharp peak at 520 cm- 1 indicating crystalline silicon, confirming that the crystallinity was increased.
- hydrogen gas and monosilane gas are supplied into the film formation chamber 10 at the flow rates controlled by the mass flow controllers MFC 1 and MFC 2 from the beginning of the film formation, and high-frequency power is applied to these gases. Then, a plasma is formed, and a silicon film is formed on the substrate S under the plasma.
- the gas reservoir GR is not used for silane gas supply, but the nuclei or seeds that promote the growth of the silicon film on the substrate S are formed by the chemical sputtering of the silicon sputtering target 2 so that The formation of the coating film started smoothly, and the supply of silane gas and hydrogen gas was started into the film formation chamber 10 at a flow rate controlled by the mass flow controller MFC 1 and MFC 2, respectively. Since the silane gas and the hydrogen gas are supplied at a controlled flow rate into the film forming chamber 10, the film formation on the substrate S is started smoothly, and the entire film including the subsequently formed film portion is formed at a higher speed. it can.
- the control unit C ON T may be capable of controlling the operation of the gas supply device 100 and the like so that a film can be formed in this manner.
- the gas reservoir GR may not be provided.
- the power center balance mechanism CB it can be made to function advantageously as described above.
- a monosilane gas is supplied from the silane gas supply circuit 101 into the film formation chamber 10.
- the monosilane gas (S i H 4) is stored in the gas reservoir GR prior to the supply start, per the supply start forming, at a stroke from the gas reservoir, a pulse to the deposition chamber in other words Within 1 0 Supplied to Therefore, the silane gas supplied from the gas reservoir GR at once can easily reach the film forming chamber 10 at once, and accordingly, even when the silane gas supply is started, the silane gas plasma density in the film forming chamber becomes a predetermined value or It will be close to that.
- the silane gas is supplied into the film formation chamber 10 at a flow rate controlled by the mass flow controller MFC 1, and thereafter is supplied at a controlled flow rate thereafter. Is done.
- the control unit CONT may be capable of controlling the operation of the gas supply device 100 and the like so that a film can be formed in this manner.
- the gas reservoir GR is not used for silane gas supply, but the nuclei or seeds that promote the growth of the silicon film on the substrate S are formed by chemical sputtering of silicon
- the formation of the coating film starts smoothly, and thereafter, the supply of the silane gas and the hydrogen gas into the film forming chamber 10 is started at a flow rate controlled by the mass flow controller MFC 1 and MFC 2, respectively. Subsequently, silane gas and hydrogen gas are supplied into the film formation chamber 10 at a controlled flow rate. As a result, the film formation on the substrate S is started smoothly, and the entire film including the subsequently formed film portion can be formed at that high speed.
- the control unit CONT may be capable of controlling the operation of the gas supply device 100 and the like so that a film can be formed in this manner.
- the gas reservoir GR may not be provided.
- the high-frequency antenna ⁇ ⁇ is an antenna having a three-dimensional structure, and includes a first part 11 and a plurality of second parts 12.
- the first portion 11 extends straight from outside the film formation chamber 10 into the room through the ceiling wall 10 ′ of the chamber.
- the second portion 12 extends radially from the indoor end 11 e of the first portion 11 and extends toward the ceiling wall 10.
- the terminal end 12 e of each second part 12 is directly connected to the ceiling wall 10 ′ by a connector, and is thus grounded through the room 10.
- the group of the second portions 12 as a whole has a form in which two antenna portions bent in a U-shape are combined in a cross shape when viewed from above and connected to the first portion 11 ′.
- the surface of the antenna conductor is covered with an insulating film (here, an alumina film).
- the first part 11 of the high-frequency antenna is connected to a high-frequency power supply PW via a matching box MX.
- the part of the first part 11 that is outside the chamber 10 and does not contribute to plasma generation is shortened as much as possible and is directly connected to the match box MX.
- the first portion 11 penetrates the insulating member 10a provided also on the ceiling wall 10 of the room 10 and also serving as an airtight seal.
- the high-frequency antenna 1 is formed to be short, and furthermore, has a parallel wiring structure that is electrically branched in parallel in the room 10, so that the inductance of the antenna 1 'is reduced accordingly. .
- the gas supplied into the film forming chamber 10 also depends on the high-frequency antenna ⁇ .
- High frequency power can be applied to form inductively coupled plasma.
- the high-frequency antenna 1 is a low-inductance antenna, it is possible to generate a desired plasma by suppressing inconveniences such as abnormal discharge and poor matching, and to improve the plasma characteristics. Even if the power frequency is increased to, for example, 40 MHz to 100 MHz, or even several hundred MHz, the desired plasma is generated by suppressing inconveniences such as abnormal discharge and poor matching. be able to.
- the high-frequency antenna ⁇ ⁇ ⁇ has a three-dimensional structure, it can efficiently apply an electric field over a wide area in the room 10 even if it is arranged near an indoor wall, and accordingly the efficiency of using high-frequency power Is improved.
- the present invention can be used when forming a silicon film for forming various semiconductor components such as TFT (thin film transistor) switches and semiconductor devices using the silicon film, and semiconductor devices.
- TFT thin film transistor
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- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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EP05721588A EP1728891A1 (en) | 2004-03-26 | 2005-03-22 | Silicon film forming equipment |
JP2006519453A JP4254861B2 (ja) | 2004-03-26 | 2005-03-22 | シリコン膜形成装置 |
US11/519,132 US20070007128A1 (en) | 2004-03-26 | 2006-09-12 | Silicon film forming apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-91888 | 2004-03-26 | ||
JP2004091888 | 2004-03-26 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/519,132 Continuation US20070007128A1 (en) | 2004-03-26 | 2006-09-12 | Silicon film forming apparatus |
Publications (1)
Publication Number | Publication Date |
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WO2005093119A1 true WO2005093119A1 (ja) | 2005-10-06 |
Family
ID=35056223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/005661 WO2005093119A1 (ja) | 2004-03-26 | 2005-03-22 | シリコン膜形成装置 |
Country Status (7)
Country | Link |
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US (1) | US20070007128A1 (ja) |
EP (1) | EP1728891A1 (ja) |
JP (1) | JP4254861B2 (ja) |
KR (1) | KR100852266B1 (ja) |
CN (1) | CN100587104C (ja) |
TW (1) | TWI258806B (ja) |
WO (1) | WO2005093119A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2009061067A1 (en) * | 2007-11-09 | 2009-05-14 | Electronics And Telecommunications Research Institute | Apparatus for reactive sputtering deposition |
US7763153B2 (en) | 2005-09-26 | 2010-07-27 | Nissin Electric Co., Ltd. | Method and apparatus for forming a crystalline silicon thin film |
US7887677B2 (en) | 2005-09-26 | 2011-02-15 | Nissin Electric Co., Ltd. | Silicon object forming method and apparatus |
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JP4285541B2 (ja) | 2004-03-26 | 2009-06-24 | 日新電機株式会社 | シリコンドット形成方法 |
WO2005093797A1 (ja) * | 2004-03-26 | 2005-10-06 | Nissin Electric Co., Ltd. | 結晶性シリコン薄膜の形成方法及び装置 |
CN1934913B (zh) * | 2004-03-26 | 2010-12-29 | 日新电机株式会社 | 等离子体发生装置 |
JP2008177419A (ja) * | 2007-01-19 | 2008-07-31 | Nissin Electric Co Ltd | シリコン薄膜形成方法 |
US8409407B2 (en) * | 2010-04-22 | 2013-04-02 | Primestar Solar, Inc. | Methods for high-rate sputtering of a compound semiconductor on large area substrates |
CN105097607B (zh) * | 2014-05-22 | 2019-02-19 | 北京北方华创微电子装备有限公司 | 一种反应腔室及其清洗方法 |
KR101673899B1 (ko) * | 2015-05-07 | 2016-11-08 | 인터테크 주식회사 | 차륜용 인라인 진공 증착 장치의 진공 증착 챔버 |
US10313926B2 (en) | 2017-05-31 | 2019-06-04 | Nicira, Inc. | Large receive offload (LRO) processing in virtualized computing environments |
CN111197157A (zh) * | 2018-11-16 | 2020-05-26 | 长鑫存储技术有限公司 | 具有工艺腔室实时监控功能的半导体制造装置 |
US11505866B2 (en) * | 2019-04-25 | 2022-11-22 | Shibaura Mechatronics Corporation | Film formation apparatus and film formation method |
JP7313308B2 (ja) * | 2019-04-25 | 2023-07-24 | 芝浦メカトロニクス株式会社 | 成膜装置及び成膜方法 |
JP2023061729A (ja) * | 2021-10-20 | 2023-05-02 | 東京エレクトロン株式会社 | スパッタ成膜装置及びスパッタ成膜方法 |
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JP4285541B2 (ja) * | 2004-03-26 | 2009-06-24 | 日新電機株式会社 | シリコンドット形成方法 |
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2005
- 2005-03-22 JP JP2006519453A patent/JP4254861B2/ja not_active Expired - Fee Related
- 2005-03-22 EP EP05721588A patent/EP1728891A1/en not_active Withdrawn
- 2005-03-22 KR KR1020067019605A patent/KR100852266B1/ko not_active IP Right Cessation
- 2005-03-22 WO PCT/JP2005/005661 patent/WO2005093119A1/ja not_active Application Discontinuation
- 2005-03-22 CN CN200580009409A patent/CN100587104C/zh not_active Expired - Fee Related
- 2005-03-24 TW TW094109136A patent/TWI258806B/zh not_active IP Right Cessation
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2006
- 2006-09-12 US US11/519,132 patent/US20070007128A1/en not_active Abandoned
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US7763153B2 (en) | 2005-09-26 | 2010-07-27 | Nissin Electric Co., Ltd. | Method and apparatus for forming a crystalline silicon thin film |
US7887677B2 (en) | 2005-09-26 | 2011-02-15 | Nissin Electric Co., Ltd. | Silicon object forming method and apparatus |
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Also Published As
Publication number | Publication date |
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TW200537581A (en) | 2005-11-16 |
KR20060125910A (ko) | 2006-12-06 |
CN100587104C (zh) | 2010-02-03 |
CN1934285A (zh) | 2007-03-21 |
US20070007128A1 (en) | 2007-01-11 |
JPWO2005093119A1 (ja) | 2008-02-14 |
EP1728891A1 (en) | 2006-12-06 |
KR100852266B1 (ko) | 2008-08-14 |
JP4254861B2 (ja) | 2009-04-15 |
TWI258806B (en) | 2006-07-21 |
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