KR101064801B1 - 실리콘 웨이퍼의 결정결함 평가방법 - Google Patents
실리콘 웨이퍼의 결정결함 평가방법 Download PDFInfo
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- KR101064801B1 KR101064801B1 KR1020100101242A KR20100101242A KR101064801B1 KR 101064801 B1 KR101064801 B1 KR 101064801B1 KR 1020100101242 A KR1020100101242 A KR 1020100101242A KR 20100101242 A KR20100101242 A KR 20100101242A KR 101064801 B1 KR101064801 B1 KR 101064801B1
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- Prior art keywords
- wafer
- polishing
- haze
- silicon wafer
- sample
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- 230000007547 defect Effects 0.000 title claims abstract description 45
- 239000013078 crystal Substances 0.000 title claims abstract description 41
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 40
- 239000010703 silicon Substances 0.000 title claims abstract description 40
- 238000011156 evaluation Methods 0.000 title claims description 26
- 238000005498 polishing Methods 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 35
- 239000002002 slurry Substances 0.000 claims abstract description 15
- 150000002500 ions Chemical class 0.000 claims abstract description 9
- 150000001412 amines Chemical class 0.000 claims description 7
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000010949 copper Substances 0.000 description 56
- 235000012431 wafers Nutrition 0.000 description 48
- 239000000523 sample Substances 0.000 description 28
- 238000011109 contamination Methods 0.000 description 26
- 238000010438 heat treatment Methods 0.000 description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 15
- 229910052802 copper Inorganic materials 0.000 description 14
- 230000008569 process Effects 0.000 description 9
- 238000005530 etching Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 6
- 239000002244 precipitate Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 239000000538 analytical sample Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 235000015241 bacon Nutrition 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- 241000237858 Gastropoda Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/10—Measuring as part of the manufacturing process
- H01L22/12—Measuring as part of the manufacturing process for structural parameters, e.g. thickness, line width, refractive index, temperature, warp, bond strength, defects, optical inspection, electrical measurement of structural dimensions, metallurgic measurement of diffusions
-
- 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
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Abstract
실시예에 따른 실리콘 웨이퍼의 결정결함 평가방법은 실리콘 잉곳을 슬라이싱 하여 웨이퍼를 제조하는 단계; 상기 웨이퍼를 폴리싱하는 단계; 및 상기 웨이퍼에 대한 결정결함 평가단계;를 포함하고, 상기 웨이퍼 폴리싱 단계에서, 폴리싱용 슬러리에 Cu 이온을 첨가하여 폴리싱을 진행할 수 있다.
Description
도 2는 종래기술에서 Cu 과다로 인한 전면 헤이즈(haze) 현상 예시도.
도 3은 실시예에 따른 실리콘 웨이퍼의 결정결함 평가방법의 개념도.
도 4는 실리콘 웨이퍼의 결정결함 평가방법에서의 구리(Cu) 오염 예시도.
Claims (3)
- 실리콘 잉곳을 슬라이싱 하여 웨이퍼를 제조하는 단계;
상기 웨이퍼를 폴리싱하는 단계; 및
상기 웨이퍼에 대한 결정결함 평가단계;를 포함하고,
상기 웨이퍼 폴리싱 단계에서, 폴리싱용 슬러리에 Cu 이온을 첨가하여 폴리싱을 진행하는 것을 특징으로 하는 실리콘 웨이퍼 결정결함 평가방법. - 제1 항에 있어서,
상기 슬러리에 아민(Amine) 첨가물을 포함하는 실리콘 웨이퍼 결정결함 평가방법. - 제1 항 또는 제2항에 있어서,
상기 웨이퍼에 대한 결정결함 평가단계는,
구리 헤지즈(Cu Haze) 방법을 포함하는 실리콘 웨이퍼 결정결함 평가방법.
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KR1020100101242A KR101064801B1 (ko) | 2010-10-18 | 2010-10-18 | 실리콘 웨이퍼의 결정결함 평가방법 |
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KR1020100101242A KR101064801B1 (ko) | 2010-10-18 | 2010-10-18 | 실리콘 웨이퍼의 결정결함 평가방법 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20060088032A (ko) * | 2005-01-31 | 2006-08-03 | 가부시키가이샤 섬코 | 에칭 액체 및 이를 사용하는 실리콘 웨이퍼 제조 방법 |
KR20080063090A (ko) * | 2006-12-29 | 2008-07-03 | 주식회사 실트론 | 고평탄도 실리콘 웨이퍼 제조 방법 |
KR20100090041A (ko) * | 2009-02-05 | 2010-08-13 | 주식회사 실트론 | 실리콘 웨이퍼 제조 방법 |
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- 2010-10-18 KR KR1020100101242A patent/KR101064801B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20060088032A (ko) * | 2005-01-31 | 2006-08-03 | 가부시키가이샤 섬코 | 에칭 액체 및 이를 사용하는 실리콘 웨이퍼 제조 방법 |
KR20080063090A (ko) * | 2006-12-29 | 2008-07-03 | 주식회사 실트론 | 고평탄도 실리콘 웨이퍼 제조 방법 |
KR20100090041A (ko) * | 2009-02-05 | 2010-08-13 | 주식회사 실트론 | 실리콘 웨이퍼 제조 방법 |
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