KR20060078852A - 비저항값이 높은 실리콘웨이퍼의 d-결함 평가용 부식액및 이를 이용한 평가방법 - Google Patents
비저항값이 높은 실리콘웨이퍼의 d-결함 평가용 부식액및 이를 이용한 평가방법 Download PDFInfo
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- KR20060078852A KR20060078852A KR1020040117424A KR20040117424A KR20060078852A KR 20060078852 A KR20060078852 A KR 20060078852A KR 1020040117424 A KR1020040117424 A KR 1020040117424A KR 20040117424 A KR20040117424 A KR 20040117424A KR 20060078852 A KR20060078852 A KR 20060078852A
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- Prior art keywords
- corrosion
- defect
- corrosion solution
- evaluation
- silicon
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- 230000007797 corrosion Effects 0.000 title claims abstract description 56
- 238000005260 corrosion Methods 0.000 title claims abstract description 56
- 235000012431 wafers Nutrition 0.000 title claims abstract description 46
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 45
- 239000010703 silicon Substances 0.000 title claims abstract description 45
- 238000011156 evaluation Methods 0.000 title claims abstract description 25
- 230000007547 defect Effects 0.000 claims abstract description 50
- 239000013078 crystal Substances 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000003628 erosive effect Effects 0.000 claims 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 abstract description 5
- 239000011651 chromium Substances 0.000 abstract description 5
- 229910052804 chromium Inorganic materials 0.000 abstract description 2
- 238000013441 quality evaluation Methods 0.000 abstract description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 abstract 1
- 239000012286 potassium permanganate Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 30
- 230000000052 comparative effect Effects 0.000 description 6
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 5
- 238000005530 etching Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000007800 oxidant agent Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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Classifications
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- 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
- C09K13/00—Etching, surface-brightening or pickling compositions
- C09K13/04—Etching, surface-brightening or pickling compositions containing an inorganic acid
- C09K13/08—Etching, surface-brightening or pickling compositions containing an inorganic acid containing a fluorine compound
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/9501—Semiconductor wafers
-
- 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
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
Description
부식액 | 조성 | 에칭속도 | 특징 |
dash | HF, HNO3, CH3COOH (1: 3: 12) | ~0.2㎛/min | 에칭속도가 매우 낮다. |
Sirtle | HF, Cr, H2O (1: 0.4: 0.2) | ~1㎛/min | |
Secco | HF, K2Cr2O7수용액(0.15mol%) (2: 1) | ~1.2㎛/min | Secco etching후 열처리를 동반하여, Dislocation 을 관찰 |
Wright | HF, HNO3, CrO3수용액(5mol%). Cu(NO3)2, CH3COOH, H2O | ~1㎛/min |
Claims (6)
- KMnO4, HF 및 물을 포함하는 비저항 값이 0.01Ω㎝ ~ 25.0 Ωcm 범위의 실리콘 웨이퍼의 결정 결함 평가용 부식액.
- 제 1 항에 있어서, 상기 결정 결함이 D-결함(Defect)인 결정 결함 평가용 부식액.
- 제 1 항에 있어서, 상기 부식액은 KMnO4: HF: 물을 포함하며, 상기 KMnO4: HF의 부피비가 0.5~1 : 1~3인 것인 결정 결함 평가용 부식액.
- 제 3 항에 있어서, 상기 부식액은 KMnO4의 농도가 0.4M 내지 0.5M인 결정 결함 평가용 부식액.
- 제 1항 내지 4항중 어느 한 항에 따른 결정 결함 평가용 부식액을 비저항 값이 0.01Ω㎝ ~ 25.0 Ω㎝ 범위의 실리콘 웨이퍼에 처리하여 결정결함을 표면화하고, 현미경으로 평가하는 것을 포함하는 비저항 값이 0.01Ω㎝ ~ 25.0 Ω㎝ 범위의 실리콘 웨이퍼의 결정 결함 평가방법.
- 제 5 항에 있어서, 상기 부식액 처리는 45초 내지 90초간 실시하는 것인 실리콘 웨이퍼의 결정 결함 평가방법.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040117424A KR100646729B1 (ko) | 2004-12-30 | 2004-12-30 | 비저항값이 높은 실리콘웨이퍼의 d-결함 평가용 부식액및 이를 이용한 평가방법 |
JP2005358099A JP2006191021A (ja) | 2004-12-30 | 2005-12-12 | シリコンウェハのd−欠陥評価用腐蝕液、及びこれを利用した評価方法 |
US11/323,907 US20060144823A1 (en) | 2004-12-30 | 2005-12-29 | Etching solution for D-defect evaluation in silicon wafer and evaluation method using the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040117424A KR100646729B1 (ko) | 2004-12-30 | 2004-12-30 | 비저항값이 높은 실리콘웨이퍼의 d-결함 평가용 부식액및 이를 이용한 평가방법 |
Publications (2)
Publication Number | Publication Date |
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KR20060078852A true KR20060078852A (ko) | 2006-07-05 |
KR100646729B1 KR100646729B1 (ko) | 2006-11-23 |
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KR1020040117424A KR100646729B1 (ko) | 2004-12-30 | 2004-12-30 | 비저항값이 높은 실리콘웨이퍼의 d-결함 평가용 부식액및 이를 이용한 평가방법 |
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Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2706211B2 (ja) * | 1993-04-14 | 1998-01-28 | 財団法人神奈川科学技術アカデミー | 半導体用エッチング液と結晶処理方法および半導体装置の製造方法 |
JP3945964B2 (ja) * | 2000-06-01 | 2007-07-18 | 株式会社ルネサステクノロジ | 研磨剤、研磨方法及び半導体装置の製造方法 |
WO2002003432A2 (en) * | 2000-06-30 | 2002-01-10 | Memc Electronic Materials, Inc. | Process for etching silicon wafers |
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