WO2005034219A1 - シリコンエピタキシャルウェーハの製造方法、及びシリコンエピタキシャルウェーハ - Google Patents
シリコンエピタキシャルウェーハの製造方法、及びシリコンエピタキシャルウェーハ Download PDFInfo
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- WO2005034219A1 WO2005034219A1 PCT/JP2004/014080 JP2004014080W WO2005034219A1 WO 2005034219 A1 WO2005034219 A1 WO 2005034219A1 JP 2004014080 W JP2004014080 W JP 2004014080W WO 2005034219 A1 WO2005034219 A1 WO 2005034219A1
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- WIPO (PCT)
- Prior art keywords
- silicon
- susceptor
- wafer
- silicon wafer
- lift pin
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Classifications
-
- 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
- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
- C30B25/10—Heating of the reaction chamber or the substrate
-
- 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
- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
-
- 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
- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
- C30B25/12—Substrate holders or susceptors
-
- 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
- C30B29/02—Elements
- C30B29/06—Silicon
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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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/687—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/68742—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a lifting arrangement, e.g. lift pins
Definitions
- the present invention relates to a method of manufacturing a silicon epitaxial wafer in which a silicon epitaxial layer is vapor-phase grown on a main surface of a silicon wafer on a susceptor by using a vapor growth apparatus, and a method of manufacturing a silicon epitaxial wafer.
- a silicon epitaxial wafer in which a silicon epitaxial layer is vapor-phase grown on a main surface of a silicon wafer on a susceptor by using a vapor growth apparatus, and a method of manufacturing a silicon epitaxial wafer.
- Eha Eha.
- a silicon wafer As a vapor phase growth apparatus for vapor-phase growing a silicon epitaxy layer on a main surface of a silicon wafer, a silicon wafer is carried into a reaction vessel and mounted on a susceptor in the reaction vessel. While the silicon wafer is heated by the upper lamp provided above the susceptor and the lower lamp provided below the susceptor, the source gas is supplied onto the main surface of the silicon wafer.
- the silicon epitaxy wafer obtained by the vapor phase growth is carried out of a reaction vessel.
- a hole for inserting a lift pin (hereinafter, referred to as a lift pin insertion hole) is formed so as to penetrate through the front and back of the susceptor, and the lift pin is inserted into the lift pin insertion hole. Is inserted.
- silicon epitaxy is applied to the main surface of silicon wafer.
- a silicon wafer is loaded into a reaction vessel, placed on a susceptor, and then heated inside the reaction vessel to a hydrogen heat treatment temperature to perform hydrogen treatment.
- the silicon oxide film on the surface of the silicon wafer is removed by etching with hydrogen.
- the inside of the reaction vessel is set to a growth temperature, and a silicon source gas is supplied onto the main surface of the silicon wafer, whereby a silicon epitaxy layer is vapor-phase grown on the main surface of the silicon wafer.
- a silicon source gas is supplied onto the main surface of the silicon wafer, whereby a silicon epitaxy layer is vapor-phase grown on the main surface of the silicon wafer.
- Patent Document 1 JP-A-6-318630
- Patent Document 2 US Patent Publication No. 6444027
- the thickness of the silicon epitaxial layer obtained on the main surface of the crystal substrate may be thinner in the vicinity of the lift pins than in other portions, and the surface shape of the silicon epitaxial layer may be partially concave.
- the silicon epitaxial layer after the vapor phase growth step is used. Projections may be formed on the rear surface of the wafer corresponding to the positions where the through holes are formed. Further, a convex portion is similarly formed corresponding to the gap between the lift pin and the lift pin insertion hole. However, in this case, the convex portion is formed in a ring shape outside the gap. The formation of the projection on the back surface of the silicon epitaxial wafer deteriorates the shape.
- a protrusion (the position of the lift pin insertion hole may be uneven) may be formed on the back surface of the silicon epitaxial wafer corresponding to the position of the through hole (including the lift pin insertion hole) formed in the susceptor. It is an object of the present invention to provide a method of manufacturing a silicon epitaxial wafer that can suppress the occurrence.
- a method for manufacturing a silicon epitaxy wafer according to claim 1 of the present invention comprises a reaction vessel, and a silicon wafer mounted on the upper surface disposed in the reaction vessel.
- the heating ratio between the upper heating means and the lower heating means is adjusted for each apparatus.
- each apparatus is, for example, that a plurality of lamps are generally used as a heating source. It is not considered that this is caused by changes or variations in the thermal characteristics of the lamps used, the mounting accuracy of the lamps, the shape or deterioration of the lamp reflector, and the shape of the dirt or susceptor.
- a susceptor disposed in the reaction vessel and having the silicon wafer mounted on an upper surface thereof is provided.
- a silicon epitaxial is obtained. It is characterized in that to control the shape of the concave convex portion formed on the rear surface of Eha, Ru.
- the natural oxide film formed on the back surface of the silicon wafer passes through the through-hole (including the gap of the lift pin insertion hole) formed in the susceptor. Etching is removed by the invading hydrogen gas. Then, when the part from which the natural oxide film has been removed comes into contact with the silicon source gas, the silicon grows partially epitaxially. Since the silicon source gas enters the back surface of the silicon wafer facing the susceptor through the through holes (including the gap between the lift pin insertion holes), it corresponds to the position where the through holes (including the lift pin insertion holes) are formed. As a result, the silicon film partially grows, and a convex portion (in a position corresponding to the lift pin insertion hole portion, an irregular shape may be formed) occurs.
- the growth rate of the silicon film on the rear surface can be reduced by adjusting the heating ratio between the upper heating means and the lower heating means. Therefore, it is possible to suppress the occurrence of uneven portions on the back surface of the silicon epitaxial wafer.
- the invention described in claim 3 of the present invention is characterized in that the through holes (including the lift pin insertion holes) formed near the lift pins and in the Z or susceptor at the position where the silicon wafer is mounted are provided. Irregularities on the surface of the silicon epitaxial wafer corresponding to the position The shape (height or depth) force is not more than nm, and the shape (height) of the convex portion formed on Z or the back surface is not more than lOnm.
- the present invention it is possible to obtain a silicon epitaxy wafer having better flatness by suppressing the occurrence of irregularities on the front surface and the Z or rear surface of the silicon epitaxy wafer.
- the convex shape of the back surface is formed on the front surface side in the device manufacturing process, in particular, in the process of sucking and holding the back surface of the wafer on the wafer chuck. It is not transferred to the surface, and no problem occurs in, for example, photolithography.
- the surface shape of the silicon epitaxy layer formed near the lift pins can be controlled, or the silicon epitaxy can be controlled.
- the heating rate is appropriately adjusted and the surface shape of the silicon epitaxy layer on the main surface is flattened by vapor-phase growth on the silicon wafer. This makes it possible to suppress the occurrence of uneven portions on the back surface of the silicon epitaxial wafer corresponding to the positions of the through holes (including the lift pin insertion holes) formed in the susceptor.
- FIG. 1 is a schematic front sectional view of a reaction vessel, showing an embodiment of the present invention, particularly showing a state during vapor phase growth.
- FIG. 2 is a schematic front sectional view of a reaction vessel, showing an embodiment of the present invention, and particularly shows a state where a silicon wafer is supported on a susceptor by lift pins.
- FIG. 3 is a view showing a problem of a conventional epitaxy manufacturing method and showing a surface shape of a silicon epitaxial layer near a lift pin.
- FIG. 4 is a view showing a problem of a conventional epitaxy manufacturing method and is a diagram showing a back surface shape of a silicon epitaxial wafer near a lift pin.
- FIG. 5 is a view showing an embodiment of the present invention and is a view showing a surface shape of a silicon epitaxial layer near a lift pin.
- FIG. 6 is a view illustrating an embodiment of the present invention, and is a silicon epitaxy near a lift pin. It is a figure which shows the back surface shape of a jar.
- the vapor phase growth apparatus 1 includes a reaction vessel 11 and a susceptor 20 provided inside the reaction vessel 11 and supporting the silicon wafer W on an upper surface.
- a gas for vapor phase growth containing a source gas (for example, trichlorosilane) and a carrier gas (for example, hydrogen) is introduced into a region above the susceptor 20 by introducing into the reaction vessel 11 a susceptor.
- a gas introduction pipe 15 for gaseous phase growth to be supplied onto the main surface of the silicon wafer W on 20 is provided.
- a purge gas eg, hydrogen
- a purge gas introduction pipe 16 for introducing the gas into the vessel is provided.
- an exhaust pipe 17 for exhausting the gas (gas for vapor phase growth and purge gas) power S in the reaction vessel 11 is provided.
- an upper heating device (upper heating means) 14a for heating the reaction vessel 11 from above and a lower heating device (lower heating means) 14b for heating from below are provided outside the reaction vessel 11.
- the heating devices 14a and 14b include a halogen lamp and the like.
- the upper heating device 14a and the lower heating device 14b can control the respective heating ratios, as described later, and control the heating ratios to control the respective heating ratios. It has made it possible to manufacture Eha.
- the susceptor 20 is made of, for example, graphite coated with silicon carbide.
- the susceptor 20 is formed in, for example, a substantially disk shape, and a counterbore 21 which is a substantially circular concave portion in plan view for positioning the silicon wafer W on the main surface is formed on the main surface. Have been. [0031] On the bottom surface of the counterbore 21, a lift pin 13 for supporting the silicon wafer W mounted on the counterbore 21 on the back surface and moving the silicon wafer W in the vertical direction is inserted. A lift pin hole 22 is formed.
- the lift pin 13 includes a body 13a formed in a round bar shape, and a head 13b formed at an upper end of the body 13a and supporting the silicon wafer W.
- the head 13b is formed larger than the diameter of the body 13a so as to easily support the silicon wafer W.
- a plurality of through holes 25 penetrating through the front and back of the susceptor 20 are formed.
- hydrogen of the purge gas penetrates from the back side of the susceptor 20 through the through hole 25, and the natural oxide film formed on the back surface of the silicon wafer W can be removed by etching.
- the peripheral portion of the silicon wafer W is supported by the counterbore 21 to provide a gap between the back surface of the silicon wafer W and the through hole 25, so that the etching of the natural oxide film can be performed. It can be performed more uniformly.
- a susceptor support member 12 that also supports the susceptor 20 is provided on the back surface of the susceptor 20, a susceptor support member 12 that also supports the susceptor 20 is provided.
- the susceptor support member 12 is movable in a vertical direction indicated by an arrow A, and is rotatable in a direction indicated by an arrow B.
- a plurality of radially branched support arms 12a are provided at the tip of the susceptor support member 12.
- the distal end of the support arm 12a is fitted in a recess 23 formed on the back surface of the susceptor 20 so that the upper surface of the susceptor 20 is substantially horizontal.
- the support arm 12a has a hole 12b through which the body 13a of the lift pin 13 passes.
- the silicon epitaxy layer of the present invention is manufactured by vapor-phase growing a silicon epitaxy layer on the silicon wafer W. The manufacturing method will be described.
- a silicon wafer W is supported by a susceptor 20 in a reaction vessel 11 set at a charging temperature (for example, 650 ° C.).
- the respective lift pins 13 are raised relative to the susceptor 20 so as to protrude from the upper surface of the susceptor 20 by substantially equal amounts. Let it. That is, the susceptor 20 is lowered along with the operation of lowering the susceptor support member 12, and the lower end of the lift pin 13 reacts during the lowering process. When reaching the inner bottom surface of the container 11 and the like, the lift pins 13 cannot be further lowered, but the susceptor 20 is further lowered. For this reason, the lift pins 13 are lifted relatively to the susceptor 20, and the silicon wafer W is in the state shown in FIG.
- the silicon wafer W is transported into the reaction vessel 11 by a handler (not shown), and the main surface of each lift pin 13 is moved by the head 13 b of each lift pin 13. Support silicon wafer W on top.
- the susceptor 20 is raised as the susceptor support member 12 is raised.
- the outer peripheral portion of the counterbore 21 becomes the silicon wafer W.
- it shifts to a state where it is supported by the outer peripheral portion of the silicon-a-E W-counterbore 21 previously supported on the head 13b of the lift pin 13.
- the silicon wafer W is supported by the susceptor 20, the silicon wafer W is subjected to a heat treatment in the reaction vessel 11 in a hydrogen atmosphere (hydrogen heat treatment step).
- the temperature inside the reaction vessel 11 is changed to the hydrogen heat treatment temperature.
- heating is performed by supplying power to the upper heating device 14a and the lower heating device 14b so that the temperature becomes 1110 ° C or more and 1180 ° C or less).
- the susceptor support member 12 is rotated around a vertical axis to rotate the susceptor 20 and the silicon wafer W.
- the natural oxide film on the main surface of the silicon wafer W is removed by etching with the hydrogen gas. Also, the natural oxide film on the back surface of the silicon wafer and the W is also etched by the hydrogen gas that has reached the back surface through the through hole 25. At this time, the natural oxide film on the back surface is completely removed by adjusting the heating ratio between the upper heating device 14a and the lower heating device 14b.
- a silicon epitaxy layer is vapor-phase grown on the main surface of the silicon wafer W. (Vapor growth step).
- the inside of the reaction vessel 11 is set to a desired temperature (for example, 1100 ° C. or more and 1150 ° C. or less) by adjusting the heating ratio between the upper heating device 14a and the lower heating device 14b,
- a gas for vapor phase growth is supplied onto the main surface of the silicon single crystal substrate W through a growth gas introduction pipe 15, and a hydrogen gas is supplied through a purge gas introduction pipe 16, so that the main surface of the silicon wafer W is
- the silicon epitaxial layer is grown by vapor phase to produce a silicon epitaxial wafer.
- the surface shape was measured with an optical ⁇ wafer shape measuring device (Nanomapper manufactured by ADE), and the vertical axis in Fig. 3 is the surface shape of the silicon epitaxial layer based on the periphery of the lift pin 13.
- the horizontal axis indicates the distance from the position corresponding to the lift pin 13.
- FIG. 3 it can be seen that the surface shape of the silicon epitaxial layer differs depending on the device and varies.
- FIG. 4 shows the result of similarly measuring the shape of the back surface of the silicon epitaxial wafer around the lift pin 13 obtained above. Similar to the surface shape of the silicon epitaxial layer, the shape differs for each device, and it can be seen that there is variation.
- This position corresponds to the lift pin insertion hole formed in the susceptor, and similarly to the protrusion formed corresponding to the position of the through hole formed in the same susceptor, the gap between the lift pin and the insertion hole (ring) Shape) to form a convex portion on the back surface.
- the convex portion is formed in a ring shape outside the gap. Further, the inside of the ring-shaped convex portion may be concave.
- FIG. 5 shows the results of measuring the surface shape of the silicon epitaxial layer near the lift pins 13 for the silicon epitaxial wafers obtained at this time.
- the lower the output of the lower heating device 14b is relatively lower than that of the upper heating device 14a (for example, when the output of the lower heating device is 52%), It can be seen that the surface shape of the silicon epitaxial layer at the position where it is formed becomes convex. That is, when the output of the lower heating device 14b is reduced, the temperature of the susceptor 20 is reduced, so that the temperature of the back surface of the silicon wafer W and the temperature of the main surface are also reduced. However, there is a space above the lift pin 13 between the susceptor 20 and the susceptor 20, where heat is less likely to be transmitted than in the susceptor 20, so that a decrease in the back surface temperature is suppressed.
- the temperature of the main surface corresponding to the lift pins 13 is relatively increased as compared with the surrounding area, and the growth rate is also increased. As a result, it is considered that the surface shape of the silicon epitaxial layer near the lift pins 13 on the main surface becomes convex.
- the output of the lower heating device 14b is excessively lowered, the surface shape of the silicon epitaxial layer at the position corresponding to the lift pin 13 becomes convex as described above. It is preferable to adjust the outputs of the heating devices 14a and 14b so that both of the protrusions are within the allowable range.
- the convex shape of the back surface is transferred to the front surface side in the device manufacturing process, particularly in the process of sucking and holding the back surface of the wafer on the wafer chuck, and for example, problems such as photolithography are caused. It is not preferable because it may occur.
- the surface shape of the silicon epitaxial layer formed near the lift pin 13 can be controlled, and the silicon Pano, W It is possible to control the shape of the concavo-convex portion formed on the back surface of the silicon wafer, so that the heating ratio is appropriately adjusted for each apparatus based on the above results, and the silicon epitaxy layer on the main surface is grown by vapor phase growth on the silicon wafer W.
- the surface shape can be flattened, and the occurrence of irregularities on the back surface of the silicon wafer corresponding to the positions of the through holes (including the lift pin insertion holes) formed in the susceptor can be suppressed.
- a silicon epitaxy layer is vapor-phase grown on a main surface of a silicon wafer on a susceptor using a vapor-phase growth apparatus.
- the surface shape of the silicon epitaxial layer on the main surface can be made flatter than before, and it corresponds to the position of a through hole (including a lift pin insertion hole) formed in the susceptor. Therefore, the present invention is suitable for a method of manufacturing a silicon epitaxial wafer capable of suppressing the formation of an uneven portion on the back surface of the silicon epitaxial wafer.
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Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/572,465 US7615116B2 (en) | 2003-10-01 | 2004-09-27 | Method for producing silicon epitaxial wafer and silicon epitaxial wafer |
EP04788176A EP1670044A4 (en) | 2003-10-01 | 2004-09-27 | METHOD OF MANUFACTURING SILICON EPITAXIAL WAFERS AND SILICON EPITAXIAL WAFERS |
JP2005514420A JP4655935B2 (ja) | 2003-10-01 | 2004-09-27 | シリコンエピタキシャルウェーハの製造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003-342943 | 2003-10-01 | ||
JP2003342943 | 2003-10-01 |
Publications (1)
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WO2005034219A1 true WO2005034219A1 (ja) | 2005-04-14 |
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Family Applications (1)
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PCT/JP2004/014080 WO2005034219A1 (ja) | 2003-10-01 | 2004-09-27 | シリコンエピタキシャルウェーハの製造方法、及びシリコンエピタキシャルウェーハ |
Country Status (6)
Country | Link |
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US (1) | US7615116B2 (ja) |
EP (1) | EP1670044A4 (ja) |
JP (1) | JP4655935B2 (ja) |
KR (1) | KR20060060735A (ja) |
CN (1) | CN1864245A (ja) |
WO (1) | WO2005034219A1 (ja) |
Cited By (8)
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JP2007005433A (ja) * | 2005-06-22 | 2007-01-11 | Sumco Corp | エピタキシャル膜の製造方法 |
KR100778218B1 (ko) | 2005-07-29 | 2007-11-20 | 가부시키가이샤 뉴플레어 테크놀로지 | 기상 성장 장치와 기상 성장 방법 |
WO2010013646A1 (ja) * | 2008-07-31 | 2010-02-04 | 株式会社Sumco | エピタキシャルウェーハの製造方法及びそれに用いられるウェーハの保持具 |
CN102538732A (zh) * | 2012-01-17 | 2012-07-04 | 河北普兴电子科技股份有限公司 | 一种硅外延层过渡区的无损检测方法 |
JP2013115342A (ja) * | 2011-11-30 | 2013-06-10 | Shin Etsu Handotai Co Ltd | シリコンエピタキシャルウェーハの製造方法 |
JP2013123004A (ja) * | 2011-12-12 | 2013-06-20 | Sumco Corp | シリコンエピタキシャルウェーハの製造方法 |
WO2016098510A1 (ja) * | 2014-12-19 | 2016-06-23 | 信越半導体株式会社 | エピタキシャルウェーハの製造方法 |
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JP2007005433A (ja) * | 2005-06-22 | 2007-01-11 | Sumco Corp | エピタキシャル膜の製造方法 |
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Also Published As
Publication number | Publication date |
---|---|
EP1670044A4 (en) | 2007-03-21 |
CN1864245A (zh) | 2006-11-15 |
JPWO2005034219A1 (ja) | 2006-12-14 |
US7615116B2 (en) | 2009-11-10 |
US20070119367A1 (en) | 2007-05-31 |
JP4655935B2 (ja) | 2011-03-23 |
KR20060060735A (ko) | 2006-06-05 |
EP1670044A1 (en) | 2006-06-14 |
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