KR101000252B1 - 웨이퍼의 표면손상 평가방법 - Google Patents
웨이퍼의 표면손상 평가방법 Download PDFInfo
- Publication number
- KR101000252B1 KR101000252B1 KR1020030084661A KR20030084661A KR101000252B1 KR 101000252 B1 KR101000252 B1 KR 101000252B1 KR 1020030084661 A KR1020030084661 A KR 1020030084661A KR 20030084661 A KR20030084661 A KR 20030084661A KR 101000252 B1 KR101000252 B1 KR 101000252B1
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- South Korea
- Prior art keywords
- wafer
- damage
- evaluating
- surface damage
- voltage difference
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000000969 carrier Substances 0.000 claims abstract description 14
- 230000005284 excitation Effects 0.000 claims abstract description 3
- 238000004381 surface treatment Methods 0.000 claims abstract description 3
- 238000005530 etching Methods 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- 238000001312 dry etching Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 4
- 238000011156 evaluation Methods 0.000 description 19
- 239000002019 doping agent Substances 0.000 description 15
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 14
- 229910052710 silicon Inorganic materials 0.000 description 14
- 239000010703 silicon Substances 0.000 description 14
- 239000013078 crystal Substances 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 8
- 239000004065 semiconductor Substances 0.000 description 7
- 230000007547 defect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000035515 penetration Effects 0.000 description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 4
- 238000007517 polishing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000012854 evaluation process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
- H01L22/14—Measuring as part of the manufacturing process for electrical parameters, e.g. resistance, deep-levels, CV, diffusions by electrical means
-
- 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
-
- 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
- H01L21/3065—Plasma etching; Reactive-ion etching
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
Abstract
Description
Claims (6)
- 가공단계를 거친 웨이퍼에 대해 표면손상 정도의 측정을 위해 표면처리를 하는 전처리 단계와;상기 전처리 단계를 거친 웨이퍼의 표면에 특정파장의 빛을 가하고, 소수캐리어의 여기에 의해 발생한 상기 웨이퍼 표면에서의 전압차를 측정하는 단계와;상기 웨이퍼 표면에서의 전압차를 무손상 웨이퍼의 표면에 대한 값과 비교평가하는 단계를 포함하여 웨이퍼의 표면 손상의 정도를 측정하는 웨이퍼의 표면손상 평가방법.
- 청구항 1에 있어서, 상기 전처리 단계는,검사대상 샘플 웨이퍼를 준비하는 샘플준비단계와;상기 샘플웨이퍼에 표면에칭을 하는 에칭단계와;상기 에칭단계가 수행된 웨이퍼를 린싱하는 린싱단계; 그리고상기 린싱단계가 종료된 웨이퍼를 건조시키는 건조단계를 포함하여 구성되는 것을 특징으로 하는 웨이퍼의 표면손상 평가방법.
- 청구항 2에 있어서, 상기 에칭단계는 HF Hume에 의한 건식 에칭이 수행되는 것을 특징으로 하는 웨이퍼의 표면손상 평가방법.
- 청구항 1에 있어서, 상기 웨이퍼 표면의 전압차 측정은 SPV(Surface Photo Voltage)장치에 의한 측정방법을 사용하는 것을 특징으로 하는 웨이퍼의 표면손상 평가방법.
- 청구항 4에 있어서, 상기 웨이퍼의 표면에 가해지는 광원의 파장은 450 내지 1200nm인 것을 특징으로 하는 웨이퍼의 표면손상 평가방법.
- 청구항 4에 있어서, 상기 무손상 웨이퍼의 표면에서의 전압의 절대값이 29 내지 31mV 이 되도록 빛의 세기가 조절되는 것을 특징으로 하는 웨이퍼의 표면손상 평가방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020030084661A KR101000252B1 (ko) | 2003-11-26 | 2003-11-26 | 웨이퍼의 표면손상 평가방법 |
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KR1020030084661A KR101000252B1 (ko) | 2003-11-26 | 2003-11-26 | 웨이퍼의 표면손상 평가방법 |
Publications (2)
Publication Number | Publication Date |
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KR20050050987A KR20050050987A (ko) | 2005-06-01 |
KR101000252B1 true KR101000252B1 (ko) | 2010-12-10 |
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KR101302587B1 (ko) * | 2011-12-23 | 2013-09-03 | 주식회사 엘지실트론 | 실리콘 웨이퍼의 소수 캐리어 라이프타임 평가 방법 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100386688B1 (ko) | 2000-12-22 | 2003-06-02 | 주식회사 실트론 | 단결정 실리콘 웨이퍼 검사 방법 |
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Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100386688B1 (ko) | 2000-12-22 | 2003-06-02 | 주식회사 실트론 | 단결정 실리콘 웨이퍼 검사 방법 |
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