KR20080109396A - 반도체 웨이퍼 연마 방법 및 장치 - Google Patents
반도체 웨이퍼 연마 방법 및 장치 Download PDFInfo
- Publication number
- KR20080109396A KR20080109396A KR1020070057658A KR20070057658A KR20080109396A KR 20080109396 A KR20080109396 A KR 20080109396A KR 1020070057658 A KR1020070057658 A KR 1020070057658A KR 20070057658 A KR20070057658 A KR 20070057658A KR 20080109396 A KR20080109396 A KR 20080109396A
- Authority
- KR
- South Korea
- Prior art keywords
- polishing
- wafer
- slurry
- oxide film
- stock
- Prior art date
Links
- 238000005498 polishing Methods 0.000 title claims abstract description 115
- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000004065 semiconductor Substances 0.000 title claims abstract description 24
- 239000002002 slurry Substances 0.000 claims abstract description 88
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 24
- 230000008569 process Effects 0.000 claims description 19
- 238000007517 polishing process Methods 0.000 claims description 18
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 239000008119 colloidal silica Substances 0.000 claims description 5
- 229910021485 fumed silica Inorganic materials 0.000 claims description 5
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 claims description 4
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 4
- 239000012498 ultrapure water Substances 0.000 claims description 4
- 239000006061 abrasive grain Substances 0.000 claims 1
- 238000000227 grinding Methods 0.000 abstract description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 235000012431 wafers Nutrition 0.000 description 73
- 230000007704 transition Effects 0.000 description 10
- 150000001412 amines Chemical class 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
Images
Classifications
-
- 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
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/30625—With simultaneous mechanical treatment, e.g. mechanico-chemical polishing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1409—Abrasive particles per se
-
- 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
- H01L21/02041—Cleaning
- H01L21/02043—Cleaning before device manufacture, i.e. Begin-Of-Line process
- H01L21/02052—Wet cleaning only
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Abstract
Description
Claims (8)
- 웨이퍼의 표면과 연마패드의 연마면 사이에 슬러리를 공급하고, 상기 웨이퍼와 연마패드를 접촉시킨 상태에서 상대 회전시켜 웨이퍼 표면을 연마처리하는 연마방법에 있어서,연마공정 초기에 상기 웨이퍼의 표면과 연마패드의 연마면 사이에 산화막 제거용 슬러리를 투입하여 산화막을 제거하는 제1단계; 및상기 산화막 제거 후 산화막 제거용 슬러리의 투입을 중단하고, 상기 웨이퍼의 표면과 연마패드의 연마면 사이에 스톡(stock) 슬러리를 투입하여 상기 웨이퍼를 스톡 연마하는 제2단계;를 포함하는 것을 특징으로 하는 반도체 웨이퍼 연마방법.
- 제1항에 있어서,상기 제1단계 이전에 상기 웨이퍼에 대하여 불산(HF) 세정 및 린스 공정을 수행하고, 그로부터 2시간 이내에 상기 제1단계를 진행하는 것을 특징으로 하는 반도체 웨이퍼 연마방법.
- 제1항 또는 제2항에 있어서,상기 제2단계에서, 상기 산화막 제거용 슬러리의 투입을 중단한 후에 상기 상기 웨이퍼의 표면과 연마패드의 연마면 사이에 초순수를 공급하여 잔존하는 산화 막 제거용 슬러리를 제거하는 린스 단계;를 더 수행하는 것을 특징으로 하는 반도체 웨이퍼 연마방법.
- 제1항에 있어서,상기 스톡 슬러리는 실리카 제거용 슬러리인 것을 특징으로 하는 반도체 웨이퍼 연마방법.
- 제1항에 있어서,상기 산화막 제거용 슬러리에 함유된 연마입자는 퓸드(fumed) 실리카 또는 콜로이달(colloidal) 실리카인 것을 특징으로 하는 반도체 웨이퍼 연마방법.
- 연마 대상 웨이퍼가 장착되는 캐리어;상기 웨이퍼의 표면과 접촉한 채로 상기 캐리어와 상대 회전운동하여 웨이퍼의 표면을 연마하는 연마패드가 장착된 정반;연마공정 초기에 웨이퍼의 표면과 연마패드의 연마면 사이에 산화막 제거용 슬러리를 공급하기 위한 산화막 제거용 슬러리 공급유닛; 및산화막 제거가 완료된 이후에 상기 웨이퍼의 표면과 연마패드의 연마면 사이에 스톡 슬러리를 공급하기 위한 스톡 슬러리 공급유닛;을 포함하는 반도체 웨이퍼 연마장치.
- 제6항에 있어서,상기 스톡 슬러리는 실리카 제거용 슬러리인 것을 특징으로 하는 반도체 웨이퍼 연마장치.
- 제6항에 있어서,상기 산화막 제거용 슬러리에 함유된 연마입자는 퓸드(fumed) 실리카 또는 콜로이달(colloidal) 실리카인 것을 특징으로 하는 반도체 웨이퍼 연마장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070057658A KR100883511B1 (ko) | 2007-06-13 | 2007-06-13 | 반도체 웨이퍼 연마 방법 및 장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070057658A KR100883511B1 (ko) | 2007-06-13 | 2007-06-13 | 반도체 웨이퍼 연마 방법 및 장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20080109396A true KR20080109396A (ko) | 2008-12-17 |
KR100883511B1 KR100883511B1 (ko) | 2009-02-17 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020070057658A KR100883511B1 (ko) | 2007-06-13 | 2007-06-13 | 반도체 웨이퍼 연마 방법 및 장치 |
Country Status (1)
Country | Link |
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KR (1) | KR100883511B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101248657B1 (ko) * | 2010-03-10 | 2013-03-28 | 실트로닉 아게 | 반도체 웨이퍼의 폴리싱 가공 방법 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW358983B (en) | 1997-11-15 | 1999-05-21 | Taiwan Semiconductor Mfg Co Ltd | Chemical mechanical grinding method |
KR20020053938A (ko) * | 2000-12-26 | 2002-07-06 | 박종섭 | 2단계 화학적기계연마 공정을 이용한 폴리실리콘막의연마방법 |
KR20070003145A (ko) * | 2005-06-30 | 2007-01-05 | 주식회사 하이닉스반도체 | 반도체 소자의 제조방법 |
KR20070098321A (ko) * | 2006-03-31 | 2007-10-05 | 주식회사 하이닉스반도체 | 화학적 기계적 연마 장치 |
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2007
- 2007-06-13 KR KR1020070057658A patent/KR100883511B1/ko active IP Right Grant
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101248657B1 (ko) * | 2010-03-10 | 2013-03-28 | 실트로닉 아게 | 반도체 웨이퍼의 폴리싱 가공 방법 |
US10707069B2 (en) | 2010-03-10 | 2020-07-07 | Siltronic Ag | Method for polishing a semiconductor wafer |
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Publication number | Publication date |
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KR100883511B1 (ko) | 2009-02-17 |
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