WO2004082001A1 - Verfahren zur herstellung einer spannungsrelaxierten schichtstruktur auf einem nicht gitterangepassten substrat sowie verwendung eines solchen schichtsystems in elektronischen und/oder optoelektronischen bauelementen - Google Patents
Verfahren zur herstellung einer spannungsrelaxierten schichtstruktur auf einem nicht gitterangepassten substrat sowie verwendung eines solchen schichtsystems in elektronischen und/oder optoelektronischen bauelementen Download PDFInfo
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- WO2004082001A1 WO2004082001A1 PCT/DE2004/000200 DE2004000200W WO2004082001A1 WO 2004082001 A1 WO2004082001 A1 WO 2004082001A1 DE 2004000200 W DE2004000200 W DE 2004000200W WO 2004082001 A1 WO2004082001 A1 WO 2004082001A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02436—Intermediate layers between substrates and deposited layers
- H01L21/02439—Materials
- H01L21/02441—Group 14 semiconducting materials
- H01L21/0245—Silicon, silicon germanium, germanium
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02524—Group 14 semiconducting materials
- H01L21/02532—Silicon, silicon germanium, germanium
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02656—Special treatments
- H01L21/02664—Aftertreatments
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S438/00—Semiconductor device manufacturing: process
- Y10S438/933—Germanium or silicon or Ge-Si on III-V
Definitions
- the invention relates to a method for producing a layer system, comprising a stress -related, monocrystalline layer structure on a substrate, each having a different lattice structure. Furthermore, the invention relates to the use of such a layer system in electronic and / or optoelectronic components.
- the method of producing a strained layer such as a strapped layer.
- B. strained silicon on a thin stress-relieved layer system z.
- B. consisting of silicon germanium.
- MOSFETs metal oxide field effect transistors
- An increase in performance is usually achieved by reducing the transistor dimensions.
- This is very complicated and expensive, since the key technologies of chip production, such as lithography processes and etching processes, have to be replaced by more efficient systems.
- An alternative way is to use more powerful materials.
- Layers strongly limited by the available substrate material, or reduced the quality of the layers. Different crystal structures, as well as different lattice parameters between the substrate and the layer material (lattice mismatch) usually prevent a monocrystalline growth of layers of high quality. If monocrystalline layers are deposited in the case of non-matched lattice parameters, this has the consequence that they are initially clamped mechanically on surfaces, ie. H. their lattice structure differs from their own in this state. If the deposited layer exceeds a certain degree of strain, the mechanical stress is reduced by dislocation formation and the lattice structure comes closer to its own. This process is called stress relaxation, hereinafter referred to as "relaxation”.
- dislocations are incorporated at the interface between the formed layer and the substrate by this relaxation, but also disadvantageously many dislocations, from the interface to the layer Surface run (so-called threading dislocations). As most of these dislocations continue through newly grown layers, they significantly degrade the electrical and optical properties of the layer material.
- Si-Ge silicon or silicon germanium
- Si-C silicon-carbon
- Si-Ge-C silicon-germanium-carbon
- the tetragonal distortion in strained silicon may be greater than about 1.3%. This can be realized accordingly, that strained silicon on a "virtual substrate", z. B. consisting of a 100% relaxed Si-Ge layer having at least 30 atom% Ge, epitaxially applied.
- the silicon germanium (SiGe) material system is thermodynamically a completely miscible system, the compound can be prepared in any concentration.
- silicon and germanium are characterized by identical crystal structures, they differ, however in the lattice parameter by 4.2%, ie that an SiGe layer or a pure Ge layer grows strained on silicon. Carbon can only be up to approx. 2 atom% substitution part to reduce the lattice parameter.
- SiGe silicon germanium
- graded layer SiGe layers whose Ge concentration increases continuously or stepwise towards the surface until the desired Ge content is reached. Since only an increase in the Ge content of about 10 atomic% per ⁇ m can be used to maintain the layer quality, such layers are up to 10 micrometers thick, depending on the Ge concentration achieved. For layer growth, this is not satisfactory from an economic and technological point of view.
- the object of the invention is a process for the production of a stress-relaxed layer structure on a nem not lattice-matched substrate such.
- B a Si-Ge layer package on a silicon substrate or a silicon on insulator (SOI) substrate to provide that does not have the defects indicated in the prior art.
- strained Si is to be produced on unstressed silicon germanium (SiGe) or other suitable materials, each with a different lattice structure, which are advantageously required while ensuring the planarity for the further processing of components.
- SiGe unstressed silicon germanium
- the object of the invention is achieved by a manufacturing method according to the main claim.
- Advantageous embodiments result from the claims appended hereto.
- the object is achieved by the use of the produced layer structure in components according to the subsidiary claims.
- a very well relaxing layer structure can be formed on a non-lattice-matched substrate, unlike previously customary, by applying a layer structure which has a relatively high lattice structure.
- parameter mismatch ⁇ fi at the boundary with the substrate should be at least 1.5%, advantageously even more than 2%, in particular even about 4%.
- Examples of such a layer sequence with a correspondingly high lattice parameter mismatch include a Si substrate with an applied Ge layer or a Si substrate with an applied SiGe layer having at least 30 atomic% Ge content.
- the layer structure in the middle region of the layer structure has a composition with a further lattice parameter mismatch ⁇ f 2 which is less than fi, advantageously as low as half that of the substrate.
- a layer structure therefore either has at least two concrete layers with different compositions and different lattice parameter mismatches ( ⁇ fi and ⁇ f 2 ) relative to the substrate, or at least one graded layer in which the germanium concentration varies perpendicular to the substrate surface.
- Examples of a suitable two-layer structure include, inter alia, germanium-Si-Ge, or Si ⁇ _ x Ge x -Si ⁇ _ y Ge y with x> y, or GeC-SiGe. In general, these layers can also have an additional 1-2 atomic% carbon.
- a first advantageous variation of the germanium concentration in a graded layer of the layer structure is a continuously decreasing concentration from the substrate / layer structure interface to the surface of the layer structure.
- ⁇ f 2 means the lattice parameter mismatch of the surface composition of the layered structure to the substrate.
- a further advantageous variation is the formation of a U-profile in which the germanium concentration at the substrate / layer structure interface and at the surface of the layer structure is higher than in the middle region of the layer structure.
- ⁇ f 2 means the lattice parameter mismatch of the composition in the middle region of the layer structure, or that of the composition with the lowest Ge content in the layer structure relative to the substrate.
- Particularly suitable materials for a graded layer structure are, in particular, Si-Ge, Si-C and Si-Ge-C.
- the total layer thickness of the epitaxial layer structure should be selected so that a certain thickness, at which the dislocations have a density of more than 10 3 / cm 2 (defect density), is undershot.
- the first layer adjoining the substrate has a layer thickness which is smaller than the so-called critical layer thickness for this layer.
- the critical layer thickness defines the maximum layer thickness for this layer, which still allows defect-free growth on the non-lattice-matched substrate. At a layer thickness below this critical layer thickness can therefore usually strictly pseudomorphic, ie completely defect-free growth can be achieved.
- the layer thickness of the first layer to be deposited will be interpreted by a person skilled in the art according to how large the critical layer thickness or how large the lattice parameter mismatch is. In general, the higher the lattice parameter mismatch, the lower the critical layer thickness. In the case of the materials listed here, the layer thickness of a first layer is generally between 1 and 20 nm, advantageously between 1 and 15 nm. In the combination of Si substrate and a pure germanium layer applied thereto, the suitable layer thickness of the germanium layer is even only 3 to 4 In the case of a three-layer structure of the layer structure, this applies correspondingly to both the first and the third layer.
- the layer thickness of the second layer is usually selected to be significantly higher (50 to 400 nm). It is only important that the total layer thickness of the layer structure is kept so small that the dislocation density is regularly less than 10 3 / cm 2 .
- the first layer may be, for example, a pure germanium layer only a few monolayer thick on silicon or a Si-Ge layer with a high Ge content on silicon.
- a second, much thicker Si-Ge layer with a certain concentration z is possible.
- the total layer thickness di and d 2 may here that critical thickness does not exceed "arise 2 during growth. This implies that the total layer thickness also on the so-called” at the dislocations with a density of> 10 3 cm critical layer thickness ", which guarantees strictly pseudomorphic, ie completely defect-free, growth.
- an epitaxial layer having a continuous concentration gradient is deposited on the substrate.
- the concentration gradient can be both continuous, as well as, for example, U-shaped.
- the method can also be used to produce a three-layer system based on the 2-layer system.
- a further third layer is applied to the first layer and the second layer.
- This has a high concentration and a small layer thickness similar to the first layer.
- the purpose of the use of these special layer systems is to optimize the relaxation parameters determining layer parameters such that a significantly higher degree of relaxation and thus a smaller dislocation density in the virtual substrate thus produced are also possible with greater lattice mismatch (eg at higher geometries). Concentration) after suitable ion implantation and thermal treatment can be achieved.
- the plastic relaxation by dislocations depends on the layer density and the respective strain.
- the effect to be achieved that relatively high lattice distortion occurs in the initial region between the substrate and the layer structure can be realized within the scope of the invention not only by applying a first layer with high lattice parameter mismatch with respect to the substrate, but also by inserting the substrate itself of carbon has a relation to the layer structure increased lattice parameter mismatch.
- a predominantly relaxed layer structure can be produced, which is the advantage of low surface roughness of less than 1 mm and regularly after the growth of only a low defect density of less than 10 e cm "2, in particular of less than 10 5 cm" 2 has. This is particularly advantageous for applying further strained layers to this layer structure.
- a further, thin layer can additionally be epitaxially deposited on the layer structure.
- epitaxial silicon is suitable for this purpose. This deposition, if the layer thickness is sufficiently small, can be done before or after, or between, the following process steps of ion implantation and thermal treatment.
- a defect region is subsequently generated primarily below this epitaxial layer structure by ion implantation.
- the epitaxial layer structure is also damaged.
- the implantation conditions are chosen such that, as a rule, no complete amorphization of the epitaxial layer structure takes place and the defects in the epitaxial layer structure can be healed as far as possible.
- This layer sequence of substrate with defect area and applied layer structure and optionally a further epitaxially applied layer is then thermally treated so that the layer structure, which represents the virtual substrate, voltage-relaxed above the defect area.
- the layer structure which represents the virtual substrate, voltage-relaxed above the defect area.
- at least one epitaxial layer structure with a changed strain state is obtained directly on a substrate.
- the implantation can optionally also be carried out using partial implantation of a mask in subregions of the substrate, in particular a wafer. In such a case, the stress state of the epitaxial layer structure will relax substantially only above the implanted defect regions.
- the aforementioned layer sequence of substrate / defect region and epitaxial layer structure can be produced in various ways.
- a layer structure can be epitaxially deposited on a substrate and subsequently (partially) a defect region can be generated primarily below the interface of the deposited layer.
- the production of the layer sequence can advantageously be varied, for example by producing the defect region before or after deposition of a first epitaxial layer on the substrate.
- the defect areas can be by ion implantation preferably with light ions (hydrogen, helium, fluorine, boron, carbon, nitrogen, sulfur, etc.) or ions of the layer or substrate material itself, ie z.
- light ions hydrogen, helium, fluorine, boron, carbon, nitrogen, sulfur, etc.
- ions of the layer or substrate material itself ie z.
- Si or Ge can be carried out in the case of a Si / SiGe heterostructure in such a way that the ions are present primarily underneath the first epitaxially deposited or still to be deposited layer.
- the implantation of light ions avoids excessive damage to the epitaxial layer system. It is advantageous to use ions that avoid unwanted contamination or doping of the structure. In this sense, also noble gas ions (Ne, Ar, Kr, etc.) can be used.
- the implantation dose and depth are adjusted to the layer thickness of the epitaxial layer structure and the mass and energy of the selected ion. It is advantageous to generate the maximum damage below the first layer deposited on the substrate. This is especially true for ions that cause blistering or cracking (hydrogen, helium, fluorine, neon, argon, etc.). The formation of bubbles or cavities at the substrate / epitaxial layer structure interface and in the epitaxial layer structure itself should be avoided.
- An advantage of Si implantation compared to implantation with very light ions (hydrogen or helium) is that the dose can be significantly reduced (by a factor of 100). This shortens the implantation times and thus considerably increases the wafer throughput as substrate used.
- the layer sequence is treated thermally in this way, or the thermal budget kept so small that the implanted areas of the "virtual substrate” relax.
- the defects caused by the implantation eg. B. were generated with helium or Si, arise during the subsequent annealing, defect clusters and dislocations, which run partly from the substrate to the epitaxial layer structure.
- These defects and those produced in the epitaxial layer structure cause relaxation of the lattice strains.
- a thin, partially or completely stress-relieved, epitaxial layer structure with small crystal defects arises, which can advantageously be used as a "virtual substrate".
- the relaxation can alternatively be triggered by an oxidation with 0 or water.
- oxidation As a treatment or else a combination of oxidation and thermal treatment.
- concentration of elements which are important for the functioning of the component within the layer structure (eg Ge enrichment in SiGe).
- the process utilizes process steps established in silicon technology so that the technology can also be transferred to very large wafers (eg 300 mm Si wafers).
- At least one further epitaxial layer can be deposited on this layer sequence.
- the substrate below the first epitaxial layer structure is in a relaxed state.
- the material of the further epitaxially applied layer on the epitaxial layer structure is again in a strained state.
- the further deposited layer may be of the same material as the substrate. Since the epitaxial layer structure is kept thin regularly, z. B. less than about 300 nanometers, in particular less than 200 nm, it is ensured that an excellent thermal conductivity is obtained within the entire layer sequence.
- the epitaxial layer structure and the further layer deposited thereon represent, due to the thinness of the layers, a single layer in nearly one plane with the substrate.
- in-plane means accordingly that the height of the steps resulting from deposition up to the second layer Surface of the substrate are not larger than the range of the depth of field of the imaging optics of lithography. Then it is ensured that in the course of further process steps, the planarity between "virtual substrate” and substrate is sufficient.
- the layer sequence of the virtual substrate and optionally the further deposited layer has z. B. a thickness of about 100 to 400, especially 100 to 200 nanometers or even thinner.
- MOSFETs first include the gate dielectric (eg, Si0 2 ), source and drain contact, the gate contact, and possibly spacers, as well as underlying differently doped channel, source, and Drain areas are manufactured and embedded in a passivation layer or insulator layer. You are not bound to specific transistor types or components. Instead of a silicon substrate can also be an SOI
- Substrate (Si on Si0) are used for the deposition of the layer structure.
- the use of heavier ions is also particularly advantageous if the silicon layer thickness on the oxide is so thin that z. B. no hydrogen or no more helium bubbles can be generated. This allows a fairly small total layer thickness on the oxide, which z. B. is particularly advantageous for the production of special components on SOI.
- the layer system produced according to the invention can be transferred to a carrier wafer by wafer bonding without polishing the surface is required.
- the cleavage of the layer system can be done by an additional hydrogen and / or helium implantation, so-called SMART-cut process. Alternatively, etching can also be used.
- the separation can then take place in such a way that either only the further epitaxial layer or also the layer structure is transferred to the new wafer, generally to Si0 2 .
- these can be advantageously etched selectively.
- z. B. strained silicon can be made directly on Si0 2 .
- Figure 1 Schematic layer system comprising a
- Figure 2 Schematic layer system comprising a substrate and an epitaxially applied layer structure with a gradual, continuous concentration curve perpendicular to the layer plane.
- Figure 3 Schematic layer system comprising a substrate and an epitaxially applied layer structure with a gradual, U-f ⁇ rmigen concentration curve perpendicular to the layer plane, and another strained layer.
- Figure 4 Schematic layer system comprising a
- Substrate with buried defect structure, a 2-layer, epitaxially applied layer structure, an implantation mask and a further stressed layer are fabricated using a 2-layer, epitaxially applied layer structure, an implantation mask and a further stressed layer.
- FIG. 1 shows the production of a virtual substrate with two monocrystalline layers each having a different lattice structure.
- the layer growth preferably follows with gas phase epitaxy or molecular beam epitaxy.
- a silicon substrate epitaxially epitaxial layer 1, for example, a pure germanium layer with a few nanometers thickness epitaxially deposited.
- a thin Si-Ge layer with a high Ge content or a Si-C layer with 1-2 atomic% of carbon can also be used.
- a silicon germanium (SiGe) layer 2 having a Ge concentration with a certain concentration z.
- a higher overall layer thickness is advantageous since, as a rule, this will lead to smaller dislocation densities in the stress-relaxed virtual substrate.
- a Si-Ge layer can be applied with a strong inhomogeneous concentration curve in the layer. It is essential that the growth is started with a higher Ge concentration, possibly even with pure germanium, and then the concentration is lowered (eg to 30 atomic%).
- a U-shaped concentration profile can be used in the layer 4.
- a symmetrical stress build-up in the layer system can also be achieved by depositing a further layer on the layer 2, if this further layer has similar or identical properties of the layer 1. The total layer thickness must in all cases be below the layer thickness at which already during the growth dislocations with disturbing concentration (maximum 10 3 cm 2 ) arise.
- a thin layer z. B. of silicon (layer 5 in Figure 4) are deposited.
- a defect area z. B. be generated by ion implantation.
- This may advantageously a He-implantation with a dose of about I x 10 16 cm "2 are carried out.
- the energy of the ions is fitted so adapted to the layer thickness, that the average range of the ions about 100-200 nm below the
- an Si implantation for example, with an energy of about 150 keV and a dose of about
- Layer sequences according to the invention on the substrate can, as in the first exemplary embodiment, have a thickness of approximately 50 to 500 nanometers or less in order to meet these requirements.
- Another layer 5 may be epitaxially deposited on the relaxed silicon germanium (SiGe) layer 2 ( Figure 4). This further layer 5 is then braced with appropriate lattice mismatch. You can z. Example of silicon, or silicon germanium (SiGe) with a different germanium concentration than in the epitaxial layer 2, or consist of a multiple layer. In the case of silicon, strained silicon is present. The thinness of the layers 1, 2 and 5, however, the planarity in the sense of the above definition of the various regions of the layers 1, 2, and 5 and the thermal conductivity is ensured to the substrate. Layer 5 from FIG. 4 (strained Si) can be advantageously used for producing ultrafast MOSFETs, in particular n-type and p-channel MOSFETs, owing to the higher mobility of the charge carriers.
- p-MOSFETs on non-strained regions of the layer structure. These areas arise, for example, when a mask was used during ion implantation. Since only the regions of the layer structure that are located above a buried defect region of a substrate regularly relax, the regions of the layer structure which remain above the region protected by the mask remain Regions of the substrate are regularly clamped.
- III-V compounds in particular III-V nitrides (GaN, AlN, InN) as well as oxidic perovskites may be arranged as first epitaxial layers.
- suitable materials are arranged on a suitable substrate, so that at least one layer (5) with a different lattice structure can be produced on the "virtual substrate" thus produced. Thereafter, a production of the components to the production of the components, for. B. transistors are continued.
- the layer sequences produced by one of the methods according to the invention can be used in particular for the production of metal oxide semiconductor field effect transistors (MOSFET) and modulated doped field effect transistors (MODFET). It is also possible to produce resonant tunnel diodes, in particular a resonant silicon germanium (SiGe) tunnel diode or quantum cascade laser, on such a "virtual substrate.” It is also conceivable to produce a photodetector from one of the layer sequences Layer sequence of GaAs as layer 5 on a "virtual substrate” made of silicon germanium (SiGe) 1, 2 to produce a laser.
- MOSFET metal oxide semiconductor field effect transistors
- MODFET modulated doped field effect transistors
- Epitaxial layer 1 (eg silicon germanium or ultrapure germanium or SiC) with a layer thickness d x .
- epitaxial layer 2 (eg Si-Ge or Si-Ge C) of a certain Ge concentration and a layer thickness d 2 .
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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EP04708713A EP1604390B9 (de) | 2003-03-10 | 2004-02-06 | Verfahren zur herstellung einer spannungsrelaxierten schichtstruktur auf einem nicht gitterangepassten substrat sowie verwendung eines solchen schichtsystems in elektronischen und/oder optoelektronischen bauelementen |
US10/548,620 US7442657B2 (en) | 2003-03-10 | 2004-02-06 | Producing stress-relaxed crystalline layer on a substrate |
DE502004011040T DE502004011040D1 (de) | 2003-03-10 | 2004-02-06 | Verfahren zur herstellung einer spannungsrelaxierten schichtstruktur auf einem nicht gitterangepassten substrat sowie verwendung eines solchen schichtsystems in elektronischen und/oder optoelektronischen bauelementen |
AT04708713T ATE464651T1 (de) | 2003-03-10 | 2004-02-06 | Verfahren zur herstellung einer spannungsrelaxierten schichtstruktur auf einem nicht gitterangepassten substrat sowie verwendung eines solchen schichtsystems in elektronischen und/oder optoelektronischen bauelementen |
JP2006504230A JP5122130B2 (ja) | 2003-03-10 | 2004-02-06 | 格子整合されなかった基板上に応力緩和層構造を形成する方法 |
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DE10310740A DE10310740A1 (de) | 2003-03-10 | 2003-03-10 | Verfahren zur Herstellung einer spannungsrelaxierten Schichtstruktur auf einem nicht gitterangepassten Substrat, sowie Verwendung eines solchen Schichtsystems in elektronischen und/oder optoelektronischen Bauelementen |
DE10310740.1 | 2003-03-10 |
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PCT/DE2004/000200 WO2004082001A1 (de) | 2003-03-10 | 2004-02-06 | Verfahren zur herstellung einer spannungsrelaxierten schichtstruktur auf einem nicht gitterangepassten substrat sowie verwendung eines solchen schichtsystems in elektronischen und/oder optoelektronischen bauelementen |
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US (1) | US7442657B2 (de) |
EP (1) | EP1604390B9 (de) |
JP (1) | JP5122130B2 (de) |
AT (1) | ATE464651T1 (de) |
DE (2) | DE10310740A1 (de) |
WO (1) | WO2004082001A1 (de) |
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WO2004095552A3 (de) * | 2003-04-22 | 2004-12-02 | Forschungszentrum Juelich Gmbh | Verfahren zur herstellung einer verspannten schicht auf einem substrat und schichtstruktur |
WO2004095553A3 (de) * | 2003-04-22 | 2004-12-23 | Forschungszentrum Juelich Gmbh | Verfahren zur herstellung einer verspannten schicht auf einem substrat und schichtstruktur |
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Also Published As
Publication number | Publication date |
---|---|
ATE464651T1 (de) | 2010-04-15 |
DE10310740A1 (de) | 2004-09-30 |
US7442657B2 (en) | 2008-10-28 |
EP1604390B1 (de) | 2010-04-14 |
DE502004011040D1 (de) | 2010-05-27 |
JP2006522469A (ja) | 2006-09-28 |
EP1604390A1 (de) | 2005-12-14 |
EP1604390B9 (de) | 2010-09-15 |
JP5122130B2 (ja) | 2013-01-16 |
US20060166475A1 (en) | 2006-07-27 |
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