WO2006100769A1 - 金属基板−炭素基金属複合材料構造体および該構造体の製造方法 - Google Patents
金属基板−炭素基金属複合材料構造体および該構造体の製造方法 Download PDFInfo
- Publication number
- WO2006100769A1 WO2006100769A1 PCT/JP2005/005270 JP2005005270W WO2006100769A1 WO 2006100769 A1 WO2006100769 A1 WO 2006100769A1 JP 2005005270 W JP2005005270 W JP 2005005270W WO 2006100769 A1 WO2006100769 A1 WO 2006100769A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carbon
- composite material
- metal
- metal substrate
- substrate
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/373—Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
- H01L23/3736—Metallic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/12—Mountings, e.g. non-detachable insulating substrates
- H01L23/14—Mountings, e.g. non-detachable insulating substrates characterised by the material or its electrical properties
- H01L23/15—Ceramic or glass substrates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/373—Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/373—Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
- H01L23/3732—Diamonds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/373—Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
- H01L23/3735—Laminates or multilayers, e.g. direct bond copper ceramic substrates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12007—Component of composite having metal continuous phase interengaged with nonmetal continuous phase
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12014—All metal or with adjacent metals having metal particles
- Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
- Y10T428/12063—Nonparticulate metal component
- Y10T428/12069—Plural nonparticulate metal components
- Y10T428/12076—Next to each other
- Y10T428/12083—Nonmetal in particulate component
Definitions
- the present invention relates to a bonded structure of a metal substrate and a carbon-based metal composite material (MICC: Metal Impregnated Carbon Composites), and a method of manufacturing the bonded structure, and more particularly, a metal having a copper or aluminum force.
- TECHNICAL FIELD The present invention relates to a structure formed by bonding a substrate and a carbon-based metal composite material with a brazing material, an IC (semiconductor integrated circuit) package using the structure, an electronic circuit including the IC package, and a method for manufacturing the structure.
- IC semiconductor integrated circuit
- the thermal expansion coefficient of ceramics used for semiconductors or semiconductor circuit boards is 4 to 8ppmZ ° C, while the thermal expansion coefficient of aluminum and copper is as large as 16-23p pmZ ° C! For this reason, a high thermal stress is generated in the bonding layer due to the difference in the coefficient of thermal expansion, which makes it impossible to simply join the two.
- the first countermeasure is to select a heat dissipation substrate having a low thermal expansion coefficient.
- a heat dissipation substrate having a low thermal expansion coefficient Conventionally, copper, aluminum metal having high thermal conductivity is applied to silicon carbide, tungsten, molybdenum, etc. having a low thermal expansion coefficient. Materials with combinations and thermal expansion coefficients adjusted to 7-10ppmZ ° C are available.
- the thermal conductivity is 200—300 W / m ⁇ K for materials using copper and 150—200 W / m ⁇ K for materials using aluminum. Because it has a thermal conductivity of 20% or more lower than the thermal conductivity of copper and aluminum alone, and the Young's modulus of the substrate is high, the heat generated in the bonding layer when bonding to silicon, aluminum nitride, etc. with a thermal expansion coefficient of about 4 ppmZ ° C. There is a problem that stress becomes large and it is difficult to bond in a large area.
- the second measure is to use a low Young's modulus resin or solder for the bonding layer, and to reduce the thermal expansion coefficient. It is to relieve the thermal stress caused by the difference.
- the disadvantages are that the thermal conductivity of the resin and solder is low, lWZm'K number lOWZm'K, respectively, and because the fracture stress is small, a thick joint layer is required, resulting in a decrease in the thermal resistance of the joint layer. Is to grow.
- greaves it has been pointed out that solder with low hygroscopicity and heat resistance has a low yield stress in the practical temperature range and easily causes thermal fatigue.
- thermal stress relaxation effect means that when two materials with different thermal expansion coefficients are joined, the stress generated at the joint interface is the thermal expansion coefficient of the two materials and the elastic modulus of each material. Therefore, the stress generated in the material is small, the material can be joined even in the joining of materials having greatly different thermal expansion coefficients, and heating and cooling can be performed. An operation that can withstand thermal fatigue caused by repeated operations.
- the present inventor previously made a carbon-based metal composite material (for example, Japanese Patent No. 3351778) obtained by calorically filling or impregnating a metal in the pores of a carbon material such as graphite. Proposed.)
- the carbon-based metal composite material has a higher thermal conductivity and the same thermal expansion coefficient as compared with the above-described materials having silicon carbide, tungsten, molybdenum, etc. as a skeleton, and has a low Young's modulus. It has been found that when silicon or ceramics is mounted, it has a function to alleviate the thermal stress generated in the bonding layer such as solder and can improve the above-mentioned problems, but it is brittle and mechanical. O The difficulty of low strength is included o
- the present inventor has bonded a plated carbon-based metal composite material having a thickness of about 1 mm to a copper or aluminum substrate with solder, and a semiconductor element on the upper part with a low temperature solder or the like.
- a bonding method but the coefficient of thermal expansion of carbon-based metal composites was 4ppm / ° C and 10ppm / ° C, copper was 16ppm / ° C, and aluminum was significantly different from 23ppm Z ° C. It was found that there was a problem that the substrate after soldering was warped with the composite material as a convex, causing difficulties in the subsequent process such as when mounting silicon. Heels Under such circumstances, it has been eagerly desired to develop a heat-dissipating material that has low warpage and strength by applying a carbon material that has a thermal stress relaxation effect.
- Patent Document 1 Japanese Patent No. 3351778
- the object of the invention is that the carbon-based metal composite material exerts a thermal stress relaxation effect on a surface on which an electronic device such as silicon or a ceramic substrate having a small thermal expansion coefficient is mounted.
- an electronic device such as silicon or a ceramic substrate having a small thermal expansion coefficient is mounted.
- numerical values close to those of copper and aluminum of the substrate metal are given, and a metal substrate with a small warpage is provided, and a carbon-based metal composite structure and a method for manufacturing the structure are provided. It is in.
- the present inventor joined a metal substrate made of copper or aluminum and a carbon-based metal composite material having a specific thickness under specific conditions. Focusing on the fact that the low-elasticity of the carbon-based metal composite material can be used to provide a metal substrate carbon-based composite material structure in which the generation of warpage is suppressed, the present invention has been completed based on these findings. .
- Metal substrate comprising a metal substrate and a carbon-based metal composite material brazed to the upper surface of the metal substrate.
- Metal substrate comprising a metal substrate and a carbon-based metal composite material brazed to the upper surface of the metal substrate-a method for producing a carbon-based metal composite material, the metal substrate and the carbon-based metal composite material
- a method for producing a carbon-based metal composite material structure comprising a step of interposing a brazing material between the metal substrate, heating and holding at a temperature equal to or higher than a melting point of the brazing material, and then cooling at least under pressure
- the metal substrate-carbon-based metal composite structure according to the present invention has a structure in which an electronic device such as a silicon or ceramic substrate having a small thermal expansion coefficient is mounted on the surface of the carbon-based metal composite as described above.
- an electronic device such as a silicon or ceramic substrate having a small thermal expansion coefficient
- the heat dissipation substrate in which the amount of warpage is suppressed can be efficiently manufactured by setting the joining conditions at high temperature and high pressure.
- the present invention relates to a structure comprising a metal sheet, a plate material, or a metal substrate that also has a blocking force, and a carbon-based metal composite material having a thickness of 0.1 mm to 2 mm that is brazed to the upper surface of the metal substrate.
- Further preferred embodiments include the following 1), 1) and 5).
- An electronic device heat dissipation metal substrate comprising a copper or aluminum substrate whose upper surface is bonded via a brazing material. Carbon-based metal composite material structure.
- a metal substrate for heat dissipation of electronic equipment comprising a carbon-based metal composite material with a thickness of 0.1 mm to 2 mm and a copper or aluminum substrate whose upper surface is joined to the lower surface of the composite material via a brazing material.
- Carbon-based metal composite material structure body comprising a carbon-based metal composite material with a thickness of 0.1 mm to 2 mm and a copper or aluminum substrate whose upper surface is joined to the lower surface of the composite material via a brazing material.
- a metal substrate for heat dissipation of electronic equipment having a shape in which a composite material is covered with metal by housing a composite material and bonding copper or aluminum foil or a substrate to the upper and lower surfaces of the composite material via a brazing material Carbon precious metal composite structure.
- a metal substrate for heat dissipation of electronic equipment comprising a silicon element having a lower surface bonded via a carbon-based metal composite material structure.
- the metal substrate of the metal substrate-carbon-based metal composite structure according to the present invention is preferably copper, aluminum, or an alloy thereof.
- the form of the metal substrate is not particularly limited, and a sheet, a plate material, a block or the like is adopted.
- the thickness of the metal substrate can be arbitrarily determined according to the structure of the electronic device to which the structure is applied, but can be selected in the range of 0.5 mm to 5 mm, preferably lmm to 3 mm. .
- a hard solder having a melting point of 450 ° C or higher and a soft solder having a temperature of 450 ° C or lower can be used.
- the hard solder silver solder, copper solder, nickel
- the solder include soft aluminum solder and aluminum joining solder (for example, Almit, AM-350, etc.).
- Solder is a typical soft solder, and Pb-Sn alloy is used.
- a brazing material having a melting point of 350 ° C. or higher is suitable, and a soft brazing material such as a soft aluminum brazing material, and more preferably a hard brazing material can be used.
- a metal that is the same as the metal contained in the carbon-based metal composite material or a metal that forms an alloy having high thermal conductivity and high fracture toughness is preferable.
- the structure according to the present invention is obtained by performing joining without melting most of the metal of the metal substrate and the carbon-based metal composite material by brazing that causes the brazing material to melt and flow into the gap.
- metal foil such as aluminum foil, tin foil, copper foil, silver foil, etc. can be laminated and used.
- the brazing material is welded and integrated with the metal in the carbon-based metal composite material, and enters the voids of the composite material. It has a so-called anchor effect, and has an action of strengthening the joining by integrating the components.
- the thickness of the entire structure of the carbon-based metal composite and the copper or aluminum substrate is about lmm or more
- the thickness ratio of the base metal composite material to the metal substrate is The metal substrate is about 2 or more, preferably 1 to 3 or more.
- the warp amount of the structure treated with the above temperature and pressure at a forceful ratio is controlled within 0.15 mm on a diagonal of 50 mm x 50 mm, and a particularly preferred warp amount is 50 mm x 50 mm. It is within 0.05 mm on the diagonal.
- the metal substrate-carbon-based metal composite structure according to the present invention has characteristics that the mounting portion has thermal stress relaxation properties, high thermal conductivity, and low thermal expansion coefficient.
- the carbon-based metal composite material a material having a thermal conductivity of lOOWZm'K or more, a thermal expansion coefficient of 4 ppm / ° C—15 ppmZ ° C, and a Young's modulus of 25 GPa or less is selected. Since such a carbon-based metal composite material has anisotropy, the thermal expansion coefficient and Young's modulus are controlled so that one direction of the surface has the characteristic value. The thermal conductivity is controlled so that the thickness direction or the surface direction has the characteristic value.
- the method for producing a metal substrate carbon-based metal composite structure according to the present invention is based on brazing using a brazing material, specifically, between copper and aluminum as a metal substrate and a carbon-based metal composite material. In addition, it has a process of holding a brazing material at a high temperature, melting the brazing material into a crevice and forming a bonding layer, and cooling it at least under pressure.
- a metal substrate-carbon-based metal composite structure suitable as a substrate.
- the pressurizing condition is not necessarily required in the bonding layer forming process, but the pressurizing condition is essential in the cooling process.
- the temperature at which the brazing material is sufficiently dissolved, the yield stress of the aluminum or copper substrate is lowered, and the temperature at which warping can be reduced by pressurization is set as the temperature at the joining.
- a temperature higher than the melting point of the brazing material is employed.
- a soldering method using high-temperature solder or the like is also included.
- Aluminum and copper substrates and carbon-based metal composites are joined by the anchor effect of the molten brazing material welding to the composite metal and entering the voids of the carbon-based metal composite under pressure.
- temperatures from 500 ° C to 610 ° C are preferred, and for copper substrates, temperatures from 500 ° C to 850 ° C are preferred, but the optimum temperature may be selected according to the pressurizing conditions.
- U is preferred, and in the case of a carbon-based metal composite material impregnated with aluminum, the maximum temperature is around 630 ° C where the impregnated aluminum does not flow out the structural force of the composite material.
- the maximum temperature is 950 ° C from the yield stress of copper, and when aluminum is used, the temperature is around 630 ° C for the same reason.
- a carbon-based metal composite material has a property of high tensile fracture strength but low tensile stress.
- the carbon-based metal composite material of the substrates bonded under pressure is in a state of being stressed in the compression direction.
- a stress is exerted on the carbon-based metal composite material in the tensile direction, but even in this state, in order to keep the carbon-based metal composite material in a state of compressive stress, the bonding temperature should be as much as possible. High is desirable.
- the pressurizing operation is preferably performed while the brazing material is dissolved since the main component of the composite material is metal and carbon which is difficult to wet, and the surface roughness is large.
- the pressurizing pressure is set to 0.2 MPa to 30 MPa for an aluminum substrate and 3 MPa to 50 MPa for a copper substrate as a pressure condition that does not cause significant plastic deformation of the aluminum substrate or copper substrate. Although it is preferable for obtaining a substrate, bonding is possible even at a pressure lower than the above temperature.
- the carbon-based metal composite material used as a component of the carbon-based metal composite material structure is a carbon material as a base material and containing a metal component.
- the metal component include magnesium, aluminum, copper, silver, and alloys of these metals.
- the strong carbon-based metal composite material is not particularly limited as long as the carbon component contains and disperses the metal component.
- the carbon material is impregnated with the metal component at high pressure or in vacuum.
- Carbon-based metal composite material obtained by mixing, carbon-based metal composite material (powder sintering method) obtained by kneading and forging granular carbon material and metal components, and surface treatment with metal It is possible to use a composite material (high temperature and high pressure method) obtained by molding carbon or carbon fiber formed at high temperature and pressure.
- a carbon-based metal composite material obtained by pressure filling or impregnation by forging can be used.
- Such a carbon-based metal composite material preferably contains a metal component of 50% or less on the basis of the total volume of the material, and more than 80% of the volume in the voids or pores of the carbon material is satisfied. The one filled is preferred.
- the thermal conductivity, thermal expansion coefficient, and elastic modulus of carbon-based metal composites depend on the type of metal component contained, but when the metal component is copper, silver, or an alloy thereof, the thermal conductivity in the thickness direction lOOWZm ' K or more, the thermal expansion coefficient 4 X 10- 6 Z ° C- 12 X 10- 6 Z ° C Contact and surface direction of the elastic modulus 25GPa or less of the composite can be realized, also metal components of aluminum or aluminum for the alloy, to obtain the thickness direction of the thermal conductivity lOOWZm.K above, the thermal expansion coefficient 4 X 10- 6 Z ° C- 8 X 10- 6 Z ° C, the surface direction of the Young's modulus 25GPa following double coupling material be able to.
- the carbon-based metal composite material is usually porous, there is a possibility that the exposed portion may have a defective mesh or an error in an airtight test.
- the carbon-based metal composite material is housed in the countersink portion of aluminum or copper substrate, and the brazing material or the like is applied to the substrate surface or the entire surface of the carbon-based metal composite material portion with metal foil or the end. It is necessary to use and coat with metal foil.
- the surface of the structure may be finished with nickel plating or the like for mounting a semiconductor or electronic component such as silicon or anticorrosion on the metal substrate-carbon-based metal composite material structure according to the present invention. Further, if necessary, it is possible to provide the structure with the ceramic circuit joined thereto.
- FIG. 1 shows a specific example of the basic structure of a carbon substrate-based metal composite structure according to the present invention.
- a structure in which a carbon-based metal composite material 3 is bonded to the upper surface of an aluminum or copper substrate 4 that is a metal substrate via a brazing material 3 'is a metal substrate carbon-based metal composite structure A according to the present invention. is there.
- FIG. 1 shows a configuration in which an electronic device composed of a silicon element or a ceramic substrate 1 is mounted on the upper surface of a carbon-based metal composite material 3 via a solder 2.
- FIG. 2 shows a configuration in which the upper surface of the metal substrate carbon-based metal composite material 3 shown in FIG.
- FIG. 3 is an example of application of the carbon-based metal composite material structure according to the present invention to a CPU cap, in which an aluminum or copper substrate 4 and a carbon-based metal composite material 3 are joined via a brazing material 3 ′. It is.
- FIG. 4 is a cross-sectional view of the structure in which the upper and lower surfaces of the carbon-based metal composite material 3 bonded in the frame of the aluminum or copper substrate 4 are covered with the metal foil 5 via the brazing material 3 ′.
- FIG. 5 illustrates a basic layout of each unit in a hot press furnace for producing a metal substrate carbon-based metal composite structure according to the present invention.
- A is a metal substrate according to the present invention, and spacers 7 are arranged on the upper and lower sides thereof, respectively, and are pressed against the cradle 8 by a ram 6 under predetermined conditions.
- the following measurement method was used to evaluate the performance of the metal substrate-carbon based metal composite structure.
- the thermal conductivity was determined as the product of thermal diffusivity, specific heat and density.
- the thermal diffusivity was measured at 25 ° C. using a TC 7000 manufactured by Vacuum Riko Co., Ltd. by a laser-flash method.
- ruby laser light excitation voltage 2.5 kv, one uniform filter and one extinction filter was used as the irradiation light.
- the thermal expansion coefficient from room temperature to 300 ° C was measured using a thermal analyzer 001, TD-5020 manufactured by Max Science.
- A Copper foil thickness 0.02mm
- B Products impregnated with unidirectional carbon fiber carbon composite material (SZ500 made by Advanced Materials Co., Ltd.) thickness 0.5mm
- C Copper C1020, thickness 2mm each 50mm X 50mm
- a metal foil combining 0.01 mm of tin foil and 0.02 mm of copper foil was inserted between A, B and B, C and set in a hot press. Vacuum atmosphere The temperature was held at 800 ° C for 30 minutes, and at the end of the hold, the pressure was increased to 20 MPa and cooled.
- the sledge of the prototype was 0.05 mm on a diagonal line of approximately 50 X 50 mm with the composite side convex.
- A Copper foil thickness 0.02mm
- B Products impregnated with unidirectional carbon fiber carbon composite material (SZ500 made by Advanced Materials Co., Ltd.) Thickness lmm and C: Copper C1020 Thickness lmm
- a metal foil combining 0.01 mm of tin foil and 0.02 mm of copper foil was inserted between A, B and B, C as a bonding layer and set in a hot press.
- the inside of the hot press is held in a vacuum atmosphere at a temperature of 800 ° C for 30 minutes, pressurized at 20 MPa at the end of the hold, and then cooled.
- the prototype warp is on a diagonal line of approximately 50 mm x 50 mm with the composite side convex. It was 0.12mm.
- the copper, brazing material, and copper substrate in the composite material were integrated and rubbed at the joint surface, and defects such as voids were strong.
- the prototype was reheated in nitrogen gas at 700 ° C for 2 hours and observed after cooling, the copper foil and substrate peeled off and the amount of warpage was not observed.
- Example 2 The prototype manufactured in Example 2 was divided into two parts, and a Kovar flange with a silver brazing BAg-7 at the center on the copper foil of each prototype (outside dimensions 12.7mm X 20.8mm, plate thickness lm m) was placed and joined at 760 ° C with a weight of about 2 kg.
- the warpage on the 30 ⁇ 20 mm diagonal on the copper substrate side was 0.02 mm, and there was almost no change in warpage before and after flange joining.
- a simple thermal cycle test was conducted 10 times on a hot plate heated to 350 ° C for 5 minutes on a hot plate heated to 350 ° C for 10 minutes on a high heat capacity steel plate (room temperature). Flange peeling was observed. There wasn't.
- the Kovar flange (coefficient of thermal expansion: approx. 5ppmZ ° C @ 30 ° C-40 ° C) can be joined to the carbon substrate metal composite structure according to the present invention, and it can be destroyed even in a simple heat cycle test. It was proved that there was a thermal stress relaxation action from not doing.
- A1050 thickness 3mm was prepared for each 50mm X 50mm.
- A4047 A1 alloy; the same applies hereinafter
- Nitrogen atmosphere temperature was held at 600 ° C for 30 minutes. At the end of the hold, the pressure was increased to 15 MPa and cooled.
- the sledge of the prototype was 0.03 mm on a diagonal of approximately 50 X 50 mm with the composite side convex.
- C Aluminum A1050 thickness 3mm 50mm X 50mm each .
- A4047, 0.3 mm sheet was inserted between A and B and between B and C and set in a hot press. Hold for 30 minutes in a nitrogen atmosphere at a temperature of 600 ° C. At the end of the hold, pressurize 15 MPa and cool.
- the sledge of the prototype was 0.15 mm on a 50 X 50 mm diagonal with the alumina side convex.
- the prototype was tested on a hot plate at 350 ° C for 10 minutes on a heated hot plate for 5 minutes and 10 minutes on a steel table (room temperature) with a large heat capacity. The amount of warpage did not change before and after the cycle test.
- the alumina substrate (coefficient of thermal expansion of about 8 ppm / ° C @ RT-800 ° C) can be bonded to the metal substrate-carbon-based metal composite structure according to the present invention, and it can be destroyed even in a simple heat cycle test. It was proved that there was a thermal stress relaxation action from the strong force.
- B Product obtained by impregnating a carbon material with aluminum (manufactured by Advanced Materials Co., Ltd. SZ300) Thickness 0.5 mm
- C Aluminum A1050 thickness 3 mm were prepared for each 50 mm ⁇ 50 mm.
- A4047, 0.3 mm sheet was inserted between A and B, lOKg was placed on it, and bonded in a nitrogen atmosphere at a temperature of 595 ° C for 30 minutes.
- the warp of the prototype was 0.2 mm on a diagonal of approximately 50 x 50 mm with the composite side convex, but it was easily peeled off when it was peeled off from the end of the prototype after inspection.
- C Aluminum A1050 thickness 3mm 50mm X 50mm each .
- A4047, 0.3 mm sheet was inserted between A and B and between B and C and set in a hot press. Hold in nitrogen atmosphere, temperature 620 ° C for 30 minutes, pressurize 50 MPa and cool down.
- the aluminum substrate with a thickness of 3 mm swelled by more than 0.3 mm to the left and right, and the alumina and the composite material were half melted and submerged and deformed.
- a prototype was prepared under the same conditions and operation as in Example 2 except that the pressure condition was 0.04 MPa instead of 20 MPa.
- the prototype warp was more than 0.15mm on a diagonal of approximately 50mm x 50mm with the composite side convex. The center part was joined, but the four corners were not joined.
- a prototype was prepared under the same conditions and operation as in Example 4 except that the pressure was changed to OMPa instead of 15 MPa.
- the prototype warp was more than 0.2 mm on a diagonal of approximately 50 mm x 50 mm with the composite side convex.
- the force that was joined at the center was the force that was not joined at the four corners.
- Comparative Example 1 1 C-AI 0.5 Al 3.0 Al 0.3 595 0.0392 0.2
- the metal substrate carbon composite structure according to the present invention has a controlled amount of warpage due to bonding, improved strength, and is useful as a heat dissipation material. Therefore, in addition to IC packages, power module substrates, laser diode components (spacers, carriers), LED substrates, plastic PKG heat spreaders, printed circuit boards, and inverter boards can be used in a wide range. In particular, it contributes greatly to the use of heat dissipation materials for electronic equipment.
- FIG. 1 is a schematic view showing a basic structure of a carbon-based metal composite material structure according to the present invention.
- FIG. 2 is a schematic view of a metal substrate according to the present invention in which a carbon-based metal composite material is coated with a metal foil.
- FIG. 3 is a schematic diagram of application to a CPU cap.
- FIG. 4 is a schematic view of a structure in which a composite material is encased in a metal frame and the upper and lower surfaces are covered with metal foil.
- FIG. 5 is a basic layout in a hot press furnace for producing a carbon-based metal composite structure according to the present invention.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Ceramic Engineering (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Ceramic Products (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/909,349 US9390999B2 (en) | 2005-03-23 | 2005-03-21 | Metal substrate/metal impregnated carbon composite material structure and method for manufacturing said structure |
CN2005800491981A CN101142080B (zh) | 2005-03-23 | 2005-03-23 | 金属基板-碳基金属复合材料结构体以及该结构体的制造方法 |
EP05721320A EP1862298A4 (en) | 2005-03-23 | 2005-03-23 | METAL SUBSTRATE STRUCTURE / METAL IMPREGNATED CARBON COMPOSITE MATERIAL AND METHOD FOR MANUFACTURING THE SAME |
PCT/JP2005/005270 WO2006100769A1 (ja) | 2005-03-23 | 2005-03-23 | 金属基板−炭素基金属複合材料構造体および該構造体の製造方法 |
KR1020077019829A KR101153107B1 (ko) | 2005-03-23 | 2005-03-23 | 금속기판-탄소기 금속복합재료 구조체와 상기 구조체의 제조 방법 |
HK08106633.2A HK1116449A1 (en) | 2005-03-23 | 2008-06-17 | Metal substrate/metal impregnated carbon composite material structure and method for manufacturing said structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2005/005270 WO2006100769A1 (ja) | 2005-03-23 | 2005-03-23 | 金属基板−炭素基金属複合材料構造体および該構造体の製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006100769A1 true WO2006100769A1 (ja) | 2006-09-28 |
Family
ID=37023466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/005270 WO2006100769A1 (ja) | 2005-03-23 | 2005-03-23 | 金属基板−炭素基金属複合材料構造体および該構造体の製造方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9390999B2 (ja) |
EP (1) | EP1862298A4 (ja) |
KR (1) | KR101153107B1 (ja) |
CN (1) | CN101142080B (ja) |
HK (1) | HK1116449A1 (ja) |
WO (1) | WO2006100769A1 (ja) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101527627B1 (ko) * | 2008-12-23 | 2015-06-10 | 실텍트라 게엠베하 | 구조화 표면을 갖는 고상 재료의 얇은 자립층을 제조하는 방법 |
JP2011011366A (ja) * | 2009-06-30 | 2011-01-20 | Sumitomo Electric Ind Ltd | 金属積層構造体の製造方法 |
DE102009034082A1 (de) * | 2009-07-21 | 2011-01-27 | Osram Gesellschaft mit beschränkter Haftung | Optoelektronische Baueinheit und Verfahren zur Herstellung einer solchen Baueinheit |
JP5583985B2 (ja) | 2010-02-19 | 2014-09-03 | 住友電気工業株式会社 | 金属積層構造体 |
JP5739873B2 (ja) * | 2010-04-02 | 2015-06-24 | 住友電気工業株式会社 | マグネシウム基複合部材、放熱部材、および半導体装置 |
CN101973144B (zh) * | 2010-09-15 | 2012-10-10 | 中国人民解放军国防科学技术大学 | 可激光焊接的层状铝硅-铝碳化硅复合材料及其制备方法 |
RU2466204C1 (ru) * | 2011-05-31 | 2012-11-10 | Государственное образовательное учреждение высшего профессионального образования Волгоградский государственный технический университет (ВолгГТУ) | Композиционный материал для электротехнических изделий |
JP5719740B2 (ja) * | 2011-09-30 | 2015-05-20 | 株式会社日立製作所 | 配線材料および、それを用いた半導体モジュール |
CN103373017A (zh) * | 2012-04-25 | 2013-10-30 | 華廣光電股份有限公司 | 软性陶瓷基板 |
CN102958273B (zh) * | 2012-10-23 | 2015-10-28 | 陈伟杰 | Pcb板 |
KR101429429B1 (ko) * | 2013-02-28 | 2014-08-11 | 주식회사 티앤머티리얼스 | 가압함침형 다층방열기판 및 그 제조방법 |
CN103354219B (zh) * | 2013-06-17 | 2016-01-13 | 苏州晶品光电科技有限公司 | 用于光学和电子器件的图案化功能结构基板 |
KR101468920B1 (ko) * | 2013-08-01 | 2014-12-08 | 주식회사 티앤머티리얼스 | 세라믹판과 금속기지 복합재료 방열판이 접합된 가압합침 일체형 다층방열기판 및 그 제조방법 |
JP5897062B2 (ja) * | 2014-05-08 | 2016-03-30 | 三菱電機株式会社 | 圧縮機用電動機及び圧縮機及び冷凍サイクル装置及び圧縮機用電動機の製造方法 |
CN105081333B (zh) * | 2014-05-20 | 2017-08-08 | 中国科学院宁波材料技术与工程研究所 | 石墨‑金属导热复合材料及其制备方法 |
RU2571248C1 (ru) * | 2014-07-22 | 2015-12-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Волгоградский государственный технический университет" (ВолгГТУ) | Матричный сплав на основе меди для получения композиционных материалов пропиткой углеграфитового каркаса |
RU2571296C1 (ru) * | 2014-07-22 | 2015-12-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Волгоградский государственный технический университет" (ВолгГТУ) | Композиционный материал, содержащий углеграфитовый каркас, пропитанный матричным сплавом на основе меди |
US9909197B2 (en) * | 2014-12-22 | 2018-03-06 | Semes Co., Ltd. | Supporting unit and substrate treating apparatus including the same |
TWI654074B (zh) * | 2015-02-12 | 2019-03-21 | 台灣奈米碳素股份有限公司 | Method for producing composite material containing carbon material by using high energy thrust |
US20160377823A1 (en) * | 2015-06-25 | 2016-12-29 | Kyocera America Inc | Optical module and optical module package incorporating a high-thermal-expansion ceramic substrate |
JP7036131B2 (ja) * | 2018-01-30 | 2022-03-15 | 三菱マテリアル株式会社 | 金属ベース基板 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003133492A (ja) * | 2001-10-24 | 2003-05-09 | Kyocera Corp | 半導体素子収納用パッケージおよび半導体装置 |
JP2004356625A (ja) * | 2003-05-06 | 2004-12-16 | Fuji Electric Device Technology Co Ltd | 半導体装置及びその製造方法 |
JP2005005400A (ja) * | 2003-06-10 | 2005-01-06 | Honda Motor Co Ltd | 半導体装置 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0829302B2 (ja) | 1987-08-31 | 1996-03-27 | 積水化学工業株式会社 | ポリフッ化ビニリデン樹脂組成物を用いた金属体の被履方法 |
JP3062278B2 (ja) | 1991-03-29 | 2000-07-10 | 株式会社神戸製鋼所 | 線膨張係数が小さい材料と銅との接合方法 |
JPH0693449A (ja) | 1992-09-14 | 1994-04-05 | Tokai Carbon Co Ltd | 金属基材へのカーボン被覆法 |
JPH06321649A (ja) | 1993-05-17 | 1994-11-22 | Hitachi Ltd | 金属化炭素部材及びその製造方法ならびに金属化炭素部材を用いた半導体装置 |
JPH09321190A (ja) | 1996-05-29 | 1997-12-12 | Tonen Corp | 放熱板 |
JPH10107190A (ja) | 1996-10-01 | 1998-04-24 | Tonen Corp | 半導体パッケージ |
TW450861B (en) | 1998-05-13 | 2001-08-21 | Toyo Kohan Co Ltd | Manufacturing method of a combination material of metal foil and ceramic, and metal foil laminated ceramic substrate |
US6649265B1 (en) | 1998-11-11 | 2003-11-18 | Advanced Materials International Company, Ltd. | Carbon-based metal composite material, method for preparation thereof and use thereof |
JP3351778B2 (ja) | 1999-06-11 | 2002-12-03 | 日本政策投資銀行 | 炭素基金属複合材料板状成形体および製造方法 |
JP4336016B2 (ja) | 2000-02-29 | 2009-09-30 | 京セラ株式会社 | 半導体素子収納用パッケージ |
JP4272329B2 (ja) | 2000-03-15 | 2009-06-03 | 京セラ株式会社 | 半導体素子収納用パッケージ |
JP2002043482A (ja) | 2000-05-17 | 2002-02-08 | Ngk Insulators Ltd | 電子回路用部材及びその製造方法並びに電子部品 |
JP3659336B2 (ja) | 2001-05-24 | 2005-06-15 | 京セラ株式会社 | 半導体素子収納用パッケージ |
CN1451505A (zh) * | 2002-04-16 | 2003-10-29 | 西北有色金属研究院 | 一种碳基复合材料与钛合金的钎焊方法 |
KR100705868B1 (ko) | 2003-05-06 | 2007-04-10 | 후지 덴키 디바이스 테크놀로지 가부시키가이샤 | 반도체 장치 및 그 제조 방법 |
JP2005095944A (ja) | 2003-09-25 | 2005-04-14 | Sentan Zairyo:Kk | 金属基板−炭素基金属複合材料構造体および該構造体の製造方法。 |
-
2005
- 2005-03-21 US US11/909,349 patent/US9390999B2/en active Active
- 2005-03-23 KR KR1020077019829A patent/KR101153107B1/ko active IP Right Grant
- 2005-03-23 CN CN2005800491981A patent/CN101142080B/zh active Active
- 2005-03-23 WO PCT/JP2005/005270 patent/WO2006100769A1/ja active Application Filing
- 2005-03-23 EP EP05721320A patent/EP1862298A4/en not_active Withdrawn
-
2008
- 2008-06-17 HK HK08106633.2A patent/HK1116449A1/xx unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003133492A (ja) * | 2001-10-24 | 2003-05-09 | Kyocera Corp | 半導体素子収納用パッケージおよび半導体装置 |
JP2004356625A (ja) * | 2003-05-06 | 2004-12-16 | Fuji Electric Device Technology Co Ltd | 半導体装置及びその製造方法 |
JP2005005400A (ja) * | 2003-06-10 | 2005-01-06 | Honda Motor Co Ltd | 半導体装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1862298A4 * |
Also Published As
Publication number | Publication date |
---|---|
KR20070114353A (ko) | 2007-12-03 |
EP1862298A4 (en) | 2010-08-18 |
KR101153107B1 (ko) | 2012-06-04 |
CN101142080A (zh) | 2008-03-12 |
US20120164468A1 (en) | 2012-06-28 |
CN101142080B (zh) | 2012-01-11 |
EP1862298A1 (en) | 2007-12-05 |
US9390999B2 (en) | 2016-07-12 |
HK1116449A1 (en) | 2008-12-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2006100769A1 (ja) | 金属基板−炭素基金属複合材料構造体および該構造体の製造方法 | |
JP4969738B2 (ja) | セラミックス回路基板およびそれを用いた半導体モジュール | |
JP3468358B2 (ja) | 炭化珪素質複合体及びその製造方法とそれを用いた放熱部品 | |
JP3351778B2 (ja) | 炭素基金属複合材料板状成形体および製造方法 | |
WO2003090277A1 (en) | Circuit board, process for producing the same and power module | |
US7433187B2 (en) | Heat spreader module | |
Jiang et al. | Evaluation of thermal cycling reliability of sintered nanosilver versus soldered joints by curvature measurement | |
EP3595003A1 (en) | Power module substrate with heat sink | |
JP2012004534A (ja) | 放熱用絶縁基板及びその製造方法 | |
JPH08255973A (ja) | セラミックス回路基板 | |
KR20230022132A (ko) | 세라믹 방열기판 제조방법 | |
JP2005095944A (ja) | 金属基板−炭素基金属複合材料構造体および該構造体の製造方法。 | |
JP4360847B2 (ja) | セラミック回路基板、放熱モジュール、および半導体装置 | |
JP5786569B2 (ja) | パワーモジュール用基板の製造方法 | |
US7161807B2 (en) | Heat spreader module | |
JP2010278171A (ja) | パワー半導体及びその製造方法 | |
JP2016180185A (ja) | アルミニウム合金−セラミックス複合体、この複合体の製造方法、及びこの複合体からなる応力緩衝材 | |
JP2020012194A (ja) | 金属−炭化珪素質複合体及びその製造方法 | |
JP2016082224A (ja) | 放熱基板と、それを使用した半導体用モジュール | |
TWI355680B (ja) | ||
JPH09298260A (ja) | 放熱板 | |
JP2006229247A (ja) | 回路基板及びその製造方法 | |
JP4556307B2 (ja) | パワーモジュール及びパワーモジュール用緩衝材の製造方法 | |
WO2023276466A1 (ja) | 金属-セラミックス接合基板およびその製造方法、並びに、ろう材 | |
JP2012172177A (ja) | アルミニウム合金−セラミックス複合体、この複合体の製造方法、及びこの複合体からなる応力緩衝材 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1020077019829 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200580049198.1 Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
REEP | Request for entry into the european phase |
Ref document number: 2005721320 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2005721320 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: RU |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: RU |
|
WWP | Wipo information: published in national office |
Ref document number: 2005721320 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11909349 Country of ref document: US |