KR20100120908A - 저온 급속 열처리를 통해 bmd농도를 제어하는 실리콘 웨이퍼 제조 방법 - Google Patents
저온 급속 열처리를 통해 bmd농도를 제어하는 실리콘 웨이퍼 제조 방법 Download PDFInfo
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- KR20100120908A KR20100120908A KR1020090039774A KR20090039774A KR20100120908A KR 20100120908 A KR20100120908 A KR 20100120908A KR 1020090039774 A KR1020090039774 A KR 1020090039774A KR 20090039774 A KR20090039774 A KR 20090039774A KR 20100120908 A KR20100120908 A KR 20100120908A
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- heat treatment
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- silicon wafer
- bmd
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 52
- 239000010703 silicon Substances 0.000 title claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 230000007547 defect Effects 0.000 title claims abstract description 21
- 238000000137 annealing Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 69
- 239000013078 crystal Substances 0.000 claims abstract description 22
- 238000005498 polishing Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims description 103
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 31
- 239000001301 oxygen Substances 0.000 claims description 31
- 229910052760 oxygen Inorganic materials 0.000 claims description 31
- 239000002244 precipitate Substances 0.000 claims description 10
- 238000005530 etching Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 6
- 235000012431 wafers Nutrition 0.000 description 69
- 239000004065 semiconductor Substances 0.000 description 25
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 8
- 238000009826 distribution Methods 0.000 description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000005247 gettering Methods 0.000 description 3
- 238000000611 regression analysis Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012885 constant function Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000005389 semiconductor device fabrication Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/324—Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02002—Preparing wafers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/322—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to modify their internal properties, e.g. to produce internal imperfections
- H01L21/3221—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to modify their internal properties, e.g. to produce internal imperfections of silicon bodies, e.g. for gettering
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
Description
Claims (5)
- 실리콘 단결정 잉곳을 웨이퍼 형태로 얇게 절단하는 슬라이싱 공정;절단된 실리콘 웨이퍼의 양면을 기계적으로 연마하는 래핑 공정;상기 래핑 공정에 기인하는 결함 및 손상을 제거하는 에칭 공정;후속 열처리에 의해 상기 실리콘 웨이퍼 내부에 생성되는 산소 침전물을 포함하는 BMD(Bulk Micro Defects)의 농도를 원하는 수준으로 제어하기 위해, 상기 실리콘 웨이퍼에 대하여 열처리를 행하는 열처리 공정; 및상기 실리콘 웨이퍼의 표면을 연마하는 연마 공정;을 포함하고,상기 열처리 공정은, 800~1000℃의 온도에서 수~수십초간 급속 열처리하는 1 단계 열처리로만 이루어지는 것을 특징으로 하는 실리콘 웨이퍼의 제조 방법.
- 제1항에 있어서,상기 열처리 공정에서 열처리 온도 T는, 800~1000℃의 범위 내에서 다음 수식으로부터 산출되는 것을 특징으로 하는 실리콘 웨이퍼의 제조 방법.log10B = a - bT (여기서, B는 원하는 BMD의 농도이고, a 및 b는 각각 상수로서 양의 실수)
- 제1항 또는 제2항에 있어서,상기 열처리 공정은 불활성 가스 분위기에서 행하는 것을 특징으로 하는 실리콘 웨이퍼의 제조 방법.
- 제1항 또는 제2항에 있어서,상기 열처리 공정 전에, 열처리 장비에 로딩된 상기 실리콘 웨이퍼에 대하여 로딩 온도에서 열처리 온도까지 초당 수℃의 승온률로 승온시키는 단계를 더 포함 하고,상기 열처리 공정 후에, 상기 실리콘 웨이퍼에 대하여 상기 열처리 온도에서 언로딩 온도까지 초당 수℃의 강온률로 강온시키는 단계를 더 포함하는 것을 특징으로 하는 실리콘 웨이퍼의 제조 방법.
- 제1항 또는 제2항에 있어서,상기 열처리 온도는 900~980℃의 범위 내에서 선택되는 것을 특징으로 하는 실리콘 웨이퍼의 제조 방법.
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KR1020090039774A KR101081652B1 (ko) | 2009-05-07 | 2009-05-07 | 저온 급속 열처리를 통해 bmd농도를 제어하는 실리콘 웨이퍼 제조 방법 |
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KR1020090039774A KR101081652B1 (ko) | 2009-05-07 | 2009-05-07 | 저온 급속 열처리를 통해 bmd농도를 제어하는 실리콘 웨이퍼 제조 방법 |
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KR20100120908A true KR20100120908A (ko) | 2010-11-17 |
KR101081652B1 KR101081652B1 (ko) | 2011-11-09 |
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Publication number | Priority date | Publication date | Assignee | Title |
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KR20030015770A (ko) * | 2001-08-17 | 2003-02-25 | 주식회사 실트론 | 단결정 실리콘 웨이퍼 및 그 제조방법 |
KR20040103222A (ko) * | 2003-05-31 | 2004-12-08 | 삼성전자주식회사 | 두께가 제어된 디누드 존을 갖는 웨이퍼, 이를 제조하는방법 및 웨이퍼의 연마 장치 |
KR100573473B1 (ko) * | 2004-05-10 | 2006-04-24 | 주식회사 실트론 | 실리콘 웨이퍼 및 그 제조방법 |
KR20080063090A (ko) * | 2006-12-29 | 2008-07-03 | 주식회사 실트론 | 고평탄도 실리콘 웨이퍼 제조 방법 |
JP5262021B2 (ja) * | 2007-08-22 | 2013-08-14 | 株式会社Sumco | シリコンウェーハ及びその製造方法 |
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