WO1999014405A1 - Procede et appareil permettant de produire un cristal unique de carbure de silicium - Google Patents
Procede et appareil permettant de produire un cristal unique de carbure de silicium Download PDFInfo
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- WO1999014405A1 WO1999014405A1 PCT/JP1998/004128 JP9804128W WO9914405A1 WO 1999014405 A1 WO1999014405 A1 WO 1999014405A1 JP 9804128 W JP9804128 W JP 9804128W WO 9914405 A1 WO9914405 A1 WO 9914405A1
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- silicon carbide
- carbon
- silicon
- single crystal
- carbide single
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B23/00—Single-crystal growth by condensing evaporated or sublimed materials
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/36—Carbides
Definitions
- the present invention relates to a method and an apparatus for producing a silicon carbide single crystal by reacting an evaporated gas from a silicon raw material with a carbon material. More specifically, the present invention relates to a method and apparatus for growing a silicon carbide single crystal by passing a vaporized gas from a silicon raw material through a carbon material and then contacting the seed crystal.
- a large-diameter, high-grade silicon carbide single crystal can be manufactured continuously and at high speed under stable conditions.
- Silicon carbide is a semiconductor material that is extremely stable thermally and chemically and has a wide energy band gap.It can be used even at high temperatures. It can be used for power device materials, short wavelength light emitting device materials, and so on.
- a sublimation method is usually used (for example, Japanese Patent Application Laid-Open No. 3-501111).
- a silicon carbide raw material powder and a silicon carbide single crystal seed crystal are opposed to each other and placed in a graphite tube, and heated to 1,800 to 2,400 ° C in an inert gas atmosphere. Heat.
- Sublimation chemical species generated by decomposition and sublimation of the silicon carbide raw material powder by heating reach the seed crystal surface held in the growth temperature range, and grow epitaxially as a single crystal.
- the sublimation gas component during the single crystal growth process fluctuates due to factors such as the sublimation decomposition process of the raw material silicon carbide crystal, the interaction between the sublimation gas components in the gas phase, and the contact reaction with graphite on the inner wall of the reactor. I do.
- a method of suppressing the fluctuation a method of adding a silicon component and a carbon component to a silicon carbide raw material powder, a method of coating the inner wall surface of a crucible with tantalum, and the like have been proposed.
- Si, Si 2 C, and SiC / throat are generated as decomposition sublimation gas from the silicon carbide raw material powder, but the amount of the silicon component in the sublimation gas is equal to the total amount of the carbon component. Since the amount is more than mole, the composition of the raw material powder gradually changes to a carbon excess during the sublimation process. Therefore, the partial pressure of these sublimation gases changes over time during the sublimation process. Fluctuations in the sublimation gas components during the single crystal growth process cause a decrease in crystallinity such as crystal defects and polymorph contamination. Therefore, it is important to control these variables.
- the chemical species in the various sublimation gases described above necessarily take different reaction paths during the crystallization process as silicon carbide.
- the reaction route is considered to depend strongly on various factors such as the temperature of the raw material, the change in the temperature distribution, the decomposition reaction form of the raw material silicon carbide, the raw material composition, and other factors, but it is difficult to control them. Therefore, according to the method using silicon carbide as a raw material, it is difficult to prepare a silicon carbide single crystal having good quality and stability. Further, as described above, in the single crystal growth process, the silicon composition in the gas phase is decreasing, and if the growth is continued for a long time, silicon carbide crystals will not be deposited due to lack of silicon in the gas phase. At that time, the composition of the raw material silicon carbide powder also tilts in a direction in which the amount of silicon decreases with time, and crystals do not precipitate.
- a method of growing single-crystal silicon carbide by utilizing a reaction between silicon vapor and carbon is known. For example, (1) using silicon as a raw material, heating the silicon vapor generated in the graphite crucible and moving it to the silicon carbide deposition chamber, reacts the carbon vapor generated from the graphite on the interior wall of the silicon carbide deposition chamber with the aforementioned silicon vapor. (Japanese Patent Publication No. 51-1840) and (2) a method of using silicon vapor as a raw material and contacting it with a carbon plate to precipitate silicon carbide crystals (US Pat. No.
- the method described in Japanese Patent Publication No. 51-8400 and U.S. Pat. No. 3,147,159 is based on the method of growing silicon carbide crystals based on the naturally occurring nuclei of silicon carbide crystals on the graphite wall. As the process proceeds, a large number of flake-like single crystals are generated, so that a large-diameter silicon carbide single crystal cannot be formed.
- the method of the above-mentioned British Patent No. 1,031,783 can keep the gas phase gas composition constant, but the silicon carbide has a small contact area between the inner wall of the reaction tube and silicon gas.
- the crystal growth rate is as slow as 0.3 mm / hr or less.
- the reaction tube is used as a raw material, the amount of the raw material is limited, and it is not possible to produce a large crystal and it is not possible to continuously supply the raw material. Cannot be used for process. Disclosure of the invention
- an object of the present invention is to provide a method for producing a large-diameter, high-grade silicon carbide single crystal continuously and at high speed under stable conditions. is there.
- Another object is to provide an apparatus suitable for carrying out such a manufacturing method.
- the present inventors have conducted intensive studies on a method of growing silicon carbide single crystal by evaporating silicon and reacting with carbon to achieve the above object, and as a result, using high-purity silicon and carbon as raw materials. By installing a seed crystal, increasing the contact area between silicon vapor and carbon, and growing at an appropriate pressure, a high-speed, high-quality, large-diameter silicon carbide single crystal grows, and the present invention has been completed. .
- a method for growing a silicon carbide single crystal on a seed crystal substrate comprising the steps of: evaporating gas from a silicon raw material through a heated carbon material and reaching the seed crystal substrate; A method for producing a silicon carbide single crystal, comprising growing a silicon carbide single crystal on a substrate.
- an apparatus for producing a silicon carbide single crystal comprising a reaction tube, a heating device and a graphite crucible charged in the reaction tube, wherein the lower portion of the graphite crucible is filled with a silicon raw material.
- FIG. 1 is a cross-sectional view showing one example of the silicon carbide single crystal manufacturing apparatus of the present invention.
- FIG. 2 is a sectional view showing another example of the silicon carbide single crystal manufacturing apparatus of the present invention.
- the vaporized gas from the silicon raw material passes through the heated carbon material, and then reaches the seed crystal substrate to grow a silicon carbide single crystal.
- a silicon carbide crystal having the same crystal structure as a silicon carbide single crystal to be grown.
- the growing crystal plane can be used in any plane orientation. For example, a plane perpendicular to the C-axis ( ⁇ 0101 ⁇ plane), a plane parallel to the C-axis ( ⁇ 110100 ⁇ plane), a plane with an off-angle introduced, or the like can be used. It is desirable that the surface of the seed crystal substrate be polished and flattened before use, because the quality of the grown single crystal can be improved.
- the seed crystal substrate is isolated so that it does not come into contact with the carbon material, it should be installed as close to the carbon material as possible to prevent changes due to the movement of the reaction gas and to keep the crystal growth surface clean. Desirable in point. Also, in order to keep the distance between the seed crystal substrate and the carbon material constant, as the crystal grows, the seed crystal substrate or the carbon material is gradually moved in a direction in which both are relatively separated, so that the growth conditions are stable. As a result, a homogeneous single crystal can be grown. In addition, if the seed crystal substrate is rotated during growth, the temperature, gas composition, and the like are homogenized, and undesired crystal growth can be suppressed.
- the seed crystal temperature is suitably in the range of 1,500 to 2,500 ° C, and desirably 1,700 to 2,300 ° C. If the seed crystal temperature is lower than 1,500 ° C or higher than 2,500 ° C, polymorphic crystals are likely to be mixed into the precipitated crystals. It is desirable to use a silicon raw material of high purity from the viewpoint of suppressing crystal defects and controlling valence electrons easily. For example, a semiconductor grade is suitable. If necessary, impurity doping can be easily performed by, for example, mixing a dopant element in the raw material portion or using a silicon material which has been doped in advance. The silicon raw material is heated to a temperature equal to or higher than the melting point to generate silicon vapor. In order to heat the silicon raw material, for example, a method of storing the material in a graphite crucible and heating the graphite crucible with a high-frequency heating device or the like is adopted.
- the graphite crucible shall be installed in the reaction tube, and the reaction tube shall be capable of introducing an inert gas such as argon, and shall be capable of controlling the pressure in the reaction tube.
- an inert gas such as argon
- the coating material a material having high heat resistance such as silicon carbide and tungsten carbide is preferable.
- the silicon carbide single crystal can be grown even if the total pressure in the reaction tube (substantially the same as the total pressure in the crucible) changes over a wide range, but from a high degree of pressure reduction to less than normal pressure. It is preferable to perform the treatment at a high degree, that is, in the range of 0.01 to 1,000 OT orr. From the viewpoint of crystal growth rate, a more preferable range of the total pressure is 0.1 to 760 T rr.
- the evaporation rate of silicon can be controlled by the difference between the silicon partial pressure and the total pressure and the value of the silicon partial pressure.
- the silicon partial pressure is preferably from 0.01 to 30 OT oI ′′ r.
- the silicon raw material is generally 1,450 to 2,200. ° C, preferably 1,500 ° C to 2,0000 ° C If the temperature is lower than 1,450 ° C, the evaporation rate of silicon is low, and the deposition rate of silicon carbide Further, since the temperature of the carbon material is higher than the temperature of the silicon raw material, if the silicon raw material temperature exceeds 2,200 ° C., a problem occurs in that usable device materials are restricted.
- the silicon raw material may be added in any state of a melt or a powder.
- it can be supplied by press-fitting with an inert gas.
- powder it can be supplied continuously or intermittently by a screw conveyor, vibrating feeder or the like. In that case, to maintain the purity of the atmosphere inside the crucible Next, it is desirable that the powder is once transferred to the preliminary chamber, the preliminary chamber is evacuated, replaced with a gas in the growth atmosphere (eg, argon gas), and silicon powder is supplied from the preliminary chamber into the crucible.
- a gas in the growth atmosphere eg, argon gas
- the evaporated silicon vapor is brought into contact with the heated carbon material.
- Various carbon materials can be used, from amorphous carbon to graphite, but in order to grow high-grade silicon carbide crystals, it is desirable to use high-purity carbon materials.
- High-purity carbon materials can be prepared by firing at high temperatures or removing impurities by reaction with halogen-based gases.
- the carbon material may have any structure as long as it can pass through the silicon vapor in order to efficiently cause a contact reaction with the silicon vapor.
- it can be constituted by a porous structure, a carbon plate having a large number of through holes, a packed layer of carbon particles, or a combination thereof.
- Porosity of porous carbon structure and carbon plate with perforated holes (%) is preferably about 50 to 98%. If it is less than 50%, the flow rate of the permeated gas becomes small, and the crystal growth rate becomes slow. If the content exceeds 98%, the carbon material becomes bulky and the frequency of replacement of the material increases.
- the carbon particles constituting the vapor-permeable carbon particles packed layer include primary particles, aggregates thereof, and granules.
- the average particle diameter of about 100 // m to 20 mm is appropriate for the carbon powder in consideration of ease of handling, difficulty in scattering, and contact area. If the particle size distribution is wide, gas can escape, and the reaction between the carbon material and the silicon gas proceeds unevenly. Therefore, a narrow particle size distribution is desirable. It is preferred that the particles have a particle size distribution in which 90% or more of the particles have an average particle size in the range of 100% of the soil.
- the structure and shape of the support are not particularly limited as long as they can hold the carbon powder and are permeable to gas.
- the support is large enough that the carbon powder does not fall on the plate-like material. Drill holes Or a net-like material can be used.
- the material of the support those that do not melt at the temperature of the carbon powder during the reaction, for example, carbon, high melting point metals (such as tantalum, tungsten, niobium, molybdenum, rhenium, and osmium), and high melting point carbides (tantalum carbide) , Silicon carbide, etc.) boride (tantalum boride, tungsten boride, etc.), and high melting point nitride (tantalum nitride, etc.) can be used.
- the carbon material is generally arranged above the raw material silicon filling portion in the graphite crucible.
- the charcoal material is arranged in multiple stages, that is, formed in a plurality of layers, and the silicon-containing evaporative gas can be sequentially passed from below.
- the through holes in each stage of the carbon plate are offset from each other in the center, so that the gas flow does not pass straight, It is desirable to arrange them so that they collide and make sufficient contact.
- carbon particles it is possible to increase the collision contact area between silicon gas phase molecules and carbon by arranging the carbon particles filled in a disc-shaped disc, preferably in a plurality of stages. It is possible.
- all of the stages can be made of a carbon material.However, if the uppermost stage is made of silicon carbide powder, the seed crystal and the seed crystal are kept until the silicon vapor rises to the carbon material portion. Since gases such as Si, SC, and SiC can be supplied into the space atmosphere between the carbon material layers, there is an effect that the sublimation of seed crystals and the formation of surface inclusions can be suppressed. If the carbon material is continuously supplied to the second or lower stage of the multi-stage carbon material, it is possible to prevent the carbon powder generated during the supply from adhering to the surface of the seed crystal.
- the temperature of the carbon material is usually above 600 ° C and higher than the seed crystal temperature, and the desired set temperature is from 1,700 to 2,800 ° C.
- the carbon source can be continuously or intermittently replenished for consumption.
- the granules are once transferred to the preliminary chamber, the preliminary chamber is evacuated, replaced with a gas in the growth atmosphere (for example, argon gas), and carbon powder is transferred from the preliminary chamber into the crucible. It is good to supply granules.
- any of a method of supplying both a carbon material and a silicon material, and a method of supplying one of a silicon material and a carbon material can be adopted.
- a method in which neither the carbon material nor the silicon material is supplied, that is, a batch method can be used.
- the silicon vapor from the silicon material filling portion is complex. Is thought to react with carbon material and carbon vapor to form a gas phase containing chemical species such as Si, Si 2 C, and Si C 2 .
- a gas phase containing chemical species such as Si, Si 2 C, and Si C 2 .
- the method of the present invention can always maintain a constant gas phase composition.
- a silicon carbide single crystal can be grown stably on the substrate surface.
- the operation is repeated by replacing the raw material silicon and the carbon material newly or adding additional raw materials to maintain the growth of the single crystal. Can be done. In other words, if a seed crystal that has been grown first is used, it can be grown into a large-diameter crystal. If a seed crystal cut from a grown single crystal is newly arranged and the operation is performed, a high-quality single crystal with further reduced crystal defects can be grown.
- FIG. 1 showing an example of the production apparatus of the present invention
- a graphite crucible 1 having a cover plate 11 is charged in a reaction tube 7.
- the lower part in the graphite tube 1 is a filling portion of the silicon raw material 5.
- Two carbon materials (plates) 31 and 32 are arranged above the silicon material filling portion, and the carbon plates 31 and 32 have through holes 31a and 32, respectively, through which sublimated silicon gas passes. a is provided.
- the through holes 31a and 32a of the two carbon plates are staggered so that the upper and lower two through holes are not located on a straight line in order to achieve sufficient contact between the silicon gas and the carbon material. is there.
- the carbon plates 31 and 32 are supported by a support 4, and the support 4 is preferably made of graphite.
- the carbon material is not limited to a plate having through holes as shown in the figure, but may be a porous carbon plate, a packed layer of carbon particles, a combination thereof, or the like. It may have a high air permeability.
- the carbon material can be a single layer, but preferably has a plurality of layers.
- the silicon carbide seed crystal substrate 2 is mounted on the upper part of the carbon material in the graphite pipe 1, for example, on the lower surface of the lid plate 11.
- the silicon-containing evaporative gas from the silicon raw material 5 is heated carbon material 31,
- a heating furnace 6 such as a high-frequency heating device is provided outside the reaction tube 7.
- the heating furnace 6 preferably has such a structure that the temperatures of the silicon raw material 5, the carbon materials 31, 32, and the seed crystal substrate 2 in the graphite crucible 1 can be independently controlled.
- the density of the high-frequency coil that hits each side is changed, or the high-frequency coil is divided into a raw material heating part, a carbon material part, and a seed crystal heating part, as shown in Fig. 1, and provided.
- the temperature of each part can be controlled independently, and the entire temperature gradient can be controlled to a desired value.
- a graphite crucible 1 equipped with a heating device 6 is charged in a reaction tube 7 made of quartz or the like. 8 is a heat insulating material such as graphite felt for shielding heat.
- the reaction tube 7 is provided with an inlet 72 for an inert gas such as argon and an exhaust hole 71, and the pressure in the graphite crucible 1 is adjusted by suction from the exhaust port 71. Since the graphite crucible 1 is usually breathable, the inert gas also enters the crucible.
- FIG. 2 shows another example of the production apparatus of the present invention.
- This apparatus comprises a carbon plate 31 having a large number of through holes 31a and a carbon plate filled thereon. It is the same as the production apparatus shown in FIG. 1 except that the support 4 shown in FIG. 1 is not provided.
- a silicon carbide single crystal was manufactured using the apparatus shown in FIG.
- a seed crystal having a diameter of 20 mm and a thickness of 2.5 mm using a 6 H—SiC single crystal (001) plane as a growth substrate was placed at the center of the lower surface of a lid of a graphite crucible. As shown in FIG. 1, 150 g of semiconductor grade silicon crystal pieces were accommodated in the bottom of the graphite crucible.
- Graphite crucible has a diameter
- the thickness is approximately at the height of the center of the graphite crucible.
- Two 10 mm carbon plates were placed with an interval between them of 3 mm.
- the carbon plate was made of a material with a porosity of 23%, and through holes with a diameter of 1.5 mm were provided at 5 mm intervals. The positions of the through holes of the two carbon plates were shifted so as not to be aligned.
- This graphite crucible was set in a quartz tube of a high-frequency furnace. First, the inside of the reactor was pulled down to 0.001 Torr, then the graphite crucible was heated to 1,450 ° C and subjected to heat treatment for 30 minutes. The temperature of the plate was raised to about 2,200 ° C, the temperature of the seed crystal was raised to 2,100 ° C, argon was introduced into the reaction tube, the argon atmosphere pressure was set to 95 Torr, and the operation was performed for 3 hours.
- the tip of the crystal had a cross-sectional shape close to a circle with a diameter of 40.3 mm and a height of 8.6 mm.
- a cross section of the crystal in the growth direction was cut, polished and polished, and observed under a microscope. As a result, no inclusion was found and the crystal defect was 30 / cm 2 . From the peak position determined by Raman spectroscopy, it was confirmed that the crystal was a single crystal with 6H_SiC and no contamination with other polymorphic crystals.
- a silicon carbide single crystal was manufactured using the apparatus shown in FIG.
- 6H-SiC single crystal A seed crystal with a (0001) plane as a growth substrate, 10 mm in diameter and 0.3 mm in thickness, was placed in the center of the lower surface of the lid of a graphite crucible. As shown in Fig. 1, 150 g of semiconductor grade silicon crystal pieces were placed in the bottom of the graphite crucible.
- the graphite crucible has a diameter of 46 mm and a height of 120 mm.
- two carbon plates having a thickness of about 10 mm were placed with an interval of 3 mm therebetween.
- the carbon plate was made of a material having a porosity of 23%, and through holes with a diameter of 1.5 mm were formed at intervals of 5 mm. The positions of the through holes of the two carbon plates were shifted so as not to be aligned.
- This graphite tube was set in a quartz tube of a high-frequency furnace. First, the inside of the reactor was pulled down to 0.001 Torr, then the graphite crucible was heated to 1,450 ° C and heat-treated for 30 minutes. After that, argon was introduced into the reaction tube, and the argon atmosphere pressure was reduced. At 95 Torr, the temperature of the silicon raw material was raised to 1,800 ° C, the temperature of the carbon plate was raised to about 2,400 ° C, and the temperature of the seed crystal was raised to 2,100 ° C, and operation was performed for 10 hours. At this point, the crystal tip had a cross-sectional shape close to a circle, a diameter of 15 mm, and a height of 6.6 mm.
- a silicon carbide single crystal was manufactured using the apparatus shown in FIG.
- a seed crystal (diameter: 10 mm, thickness: 0.3 mm) with the 6H-SiC single crystal (0001) plane as the growth substrate was placed in the center of the lower surface of the lid of the graphite crucible.
- 23 g of semiconductor grade silicon particles were accommodated in the bottom of the graphite crucible.
- the graphite crucible has an outer diameter of 32 mm, a height of 121 mm, and a wall thickness of 4 mm.
- a carbon plate (3 mm ⁇ x 21 through holes) with a thickness of about 2 mm is installed as a carbon powder support about 20 mm from the lid, and carbon powder (average particle size about 2 mm; show power) (Liza-I L, Showa Denko) was filled in an amount of 2.4 g.
- This graphite crucible was set in a quartz tube of a high-frequency furnace. First, the pressure inside the reactor was reduced to 0.1 Torr, argon was charged to normal pressure, the pressure was reduced to 0.0005 Torr, and the air in the reaction system was expelled. Fill the argon crucible to normal pressure, heat the graphite crucible, reduce the pressure to l OTorr, set the temperature of the silicon raw material to 1,800 ° C, the temperature of the carbon powder to 2,400 ° C, and the temperature of the seed crystal to 2, It was kept at 000 ° C for 3 hours to grow crystals.
- the grown crystal was 3.5 mm. From the peak position by Raman spectroscopy and the peak pattern of X-ray diffraction, it was confirmed that the crystal was 6H—SiC, and that it was a single crystal without any other polymorphic crystals. Industrial applicability
- the vaporized gas from the silicon raw material is passed through the heated carbon material, and then reaches the seed crystal substrate to grow the silicon carbide single crystal.
- Silicon carbide single crystal is a semiconductor material that can be used even at high temperatures. It can be used for radiation-resistant element materials, power element materials for power control, and short-wavelength light-emitting element materials.
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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US09/508,427 US6336971B1 (en) | 1997-09-12 | 1998-09-11 | Method and apparatus for producing silicon carbide single crystal |
DE69841108T DE69841108D1 (de) | 1997-09-12 | 1998-09-11 | Verfahren zur herstellung von siliziumkarbideinkristallen |
AU90034/98A AU9003498A (en) | 1997-09-12 | 1998-09-11 | Method and apparatus for producing silicon carbide single crystal |
EP98941856A EP1026290B1 (en) | 1997-09-12 | 1998-09-11 | Method and apparatus for producing silicon carbide single crystal |
JP2000511938A JP4199921B2 (ja) | 1997-09-12 | 1998-09-11 | 炭化珪素単結晶を製造する方法および装置 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP9/248916 | 1997-09-12 | ||
JP24891697 | 1997-09-12 | ||
US8660598P | 1998-05-22 | 1998-05-22 | |
US60/086,605 | 1998-05-22 |
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WO1999014405A1 true WO1999014405A1 (fr) | 1999-03-25 |
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PCT/JP1998/004128 WO1999014405A1 (fr) | 1997-09-12 | 1998-09-11 | Procede et appareil permettant de produire un cristal unique de carbure de silicium |
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EP (1) | EP1026290B1 (ja) |
JP (1) | JP4199921B2 (ja) |
AU (1) | AU9003498A (ja) |
DE (1) | DE69841108D1 (ja) |
WO (1) | WO1999014405A1 (ja) |
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JP2011178590A (ja) * | 2010-02-26 | 2011-09-15 | Showa Denko Kk | 成分調整部材及びそれを備えた単結晶成長装置 |
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JP7113658B2 (ja) | 2018-05-11 | 2022-08-05 | 昭和電工株式会社 | 遮蔽部材及びそれを備えた単結晶成長装置 |
JP7242978B2 (ja) | 2018-11-26 | 2023-03-22 | 株式会社レゾナック | SiC単結晶インゴットの製造方法 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3147159A (en) * | 1959-01-02 | 1964-09-01 | Norton Co | Hexagonal silicon carbide crystals produced from an elemental silicon vapor deposited onto a carbon plate |
US3147783A (en) | 1962-07-05 | 1964-09-08 | Noltes Gerrit Jan | Egg opener and separator |
GB1031783A (en) | 1963-04-29 | 1966-06-02 | Gen Electric Co Ltd | Improvements in or relating to methods of growing layers of silicon carbide on silicon carbide substrates |
JPS518400B1 (ja) | 1971-05-12 | 1976-03-16 | ||
JPH09268099A (ja) * | 1996-03-29 | 1997-10-14 | Toyota Central Res & Dev Lab Inc | 炭化珪素単結晶の製造方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4866005A (en) * | 1987-10-26 | 1989-09-12 | North Carolina State University | Sublimation of silicon carbide to produce large, device quality single crystals of silicon carbide |
DE4310745C2 (de) * | 1993-04-01 | 1999-07-08 | Siemens Ag | Verfahren zum Herstellen von SiC-Einkristallen und Vorrichtung zur Durchführung des Verfahrens |
JP3491402B2 (ja) * | 1995-08-07 | 2004-01-26 | 株式会社デンソー | 単結晶製造方法及びその単結晶製造装置 |
-
1998
- 1998-09-11 JP JP2000511938A patent/JP4199921B2/ja not_active Expired - Fee Related
- 1998-09-11 AU AU90034/98A patent/AU9003498A/en not_active Abandoned
- 1998-09-11 DE DE69841108T patent/DE69841108D1/de not_active Expired - Lifetime
- 1998-09-11 EP EP98941856A patent/EP1026290B1/en not_active Expired - Lifetime
- 1998-09-11 WO PCT/JP1998/004128 patent/WO1999014405A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3147159A (en) * | 1959-01-02 | 1964-09-01 | Norton Co | Hexagonal silicon carbide crystals produced from an elemental silicon vapor deposited onto a carbon plate |
US3147783A (en) | 1962-07-05 | 1964-09-08 | Noltes Gerrit Jan | Egg opener and separator |
GB1031783A (en) | 1963-04-29 | 1966-06-02 | Gen Electric Co Ltd | Improvements in or relating to methods of growing layers of silicon carbide on silicon carbide substrates |
JPS518400B1 (ja) | 1971-05-12 | 1976-03-16 | ||
JPH09268099A (ja) * | 1996-03-29 | 1997-10-14 | Toyota Central Res & Dev Lab Inc | 炭化珪素単結晶の製造方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1026290A4 * |
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WO2000022195A2 (en) * | 1998-10-09 | 2000-04-20 | Cree, Inc. | Production of bulk single crystals of silicon carbide |
WO2000022195A3 (en) * | 1998-10-09 | 2000-09-21 | Cree Inc | Production of bulk single crystals of silicon carbide |
JP2002527339A (ja) * | 1998-10-09 | 2002-08-27 | クリー インコーポレイテッド | 炭化珪素のバルク単結晶の生成 |
KR100848810B1 (ko) | 2007-08-03 | 2008-07-28 | 한국전기연구원 | 단결정 성장 방법 및 그 장치 |
JP2010024117A (ja) * | 2008-07-23 | 2010-02-04 | Bridgestone Corp | 炭化珪素単結晶の製造装置及び炭化珪素単結晶の製造方法 |
JP2011178591A (ja) * | 2010-02-26 | 2011-09-15 | Showa Denko Kk | 遮蔽部材及びそれを備えた単結晶成長装置 |
US9222197B2 (en) | 2010-02-26 | 2015-12-29 | Showa Denko K.K. | Shield member and apparatus for growing single crystal equipped with the same |
WO2011105123A1 (ja) * | 2010-02-26 | 2011-09-01 | 昭和電工株式会社 | 遮蔽部材及びそれを備えた単結晶成長装置 |
KR101854727B1 (ko) * | 2011-06-24 | 2018-05-04 | 엘지이노텍 주식회사 | 잉곳 제조 장치 |
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KR20130047798A (ko) * | 2011-10-28 | 2013-05-09 | 엘지이노텍 주식회사 | 실리콘 카바이드 제조장치 및 실리콘 카바이드의 제조방법 |
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JP2016199415A (ja) * | 2015-04-08 | 2016-12-01 | 住友電気工業株式会社 | 炭化珪素単結晶の製造装置 |
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Also Published As
Publication number | Publication date |
---|---|
AU9003498A (en) | 1999-04-05 |
JP4199921B2 (ja) | 2008-12-24 |
EP1026290A1 (en) | 2000-08-09 |
EP1026290A4 (en) | 2004-03-24 |
EP1026290B1 (en) | 2009-08-26 |
DE69841108D1 (de) | 2009-10-08 |
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