KR100668101B1 - 웨이퍼의 금속 불순물 평가 방법 및 웨이퍼 가열 장치 - Google Patents
웨이퍼의 금속 불순물 평가 방법 및 웨이퍼 가열 장치 Download PDFInfo
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- KR100668101B1 KR100668101B1 KR1020050052463A KR20050052463A KR100668101B1 KR 100668101 B1 KR100668101 B1 KR 100668101B1 KR 1020050052463 A KR1020050052463 A KR 1020050052463A KR 20050052463 A KR20050052463 A KR 20050052463A KR 100668101 B1 KR100668101 B1 KR 100668101B1
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- Prior art keywords
- wafer
- heating
- metal impurities
- metal
- infrared lamp
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- 239000002184 metal Substances 0.000 title claims abstract description 70
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 70
- 238000010438 heat treatment Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000011109 contamination Methods 0.000 title abstract description 15
- 239000012535 impurity Substances 0.000 claims abstract description 67
- 238000004458 analytical method Methods 0.000 claims abstract description 11
- 239000010949 copper Substances 0.000 claims description 14
- 238000011156 evaluation Methods 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 238000011084 recovery Methods 0.000 claims description 10
- 235000012431 wafers Nutrition 0.000 description 110
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 12
- 239000007788 liquid Substances 0.000 description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 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 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005247 gettering Methods 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 238000004876 x-ray fluorescence 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
- H01L21/324—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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67098—Apparatus for thermal treatment
- H01L21/67115—Apparatus for thermal treatment mainly by radiation
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
Claims (7)
- 웨이퍼를 가열하여 확산된 금속 불순물을 분석하는 웨이퍼의 금속 불순물 평가 방법에서,적외선 램프를 이용하여 상기 웨이퍼를 가열하는 단계; 및상기 웨이퍼의 표면에 확산된 금속 불순물을 분석하는 단계;를 포함하는 것을 특징으로 하는 웨이퍼의 금속 불순물 평가 방법.
- 제 1 항에 있어서,상기 웨이퍼 가열단계 이전에 상기 웨이퍼의 산화막을 제거하는 단계;를 더 포함하는 것을 특징으로 하는 웨이퍼의 금속 불순물 평가방법.
- 제 1 항에 있어서,상기 금속 불순물을 분석하는 단계는,상기 웨이퍼의 표면에 확산된 금속 불순물을 기상으로 분해하여 회수액을 제작하는 단계; 및분석장비를 이용하여 상기 회수액 중의 금속 불순물의 농도를 측정하는 단계;를 더 포함하는 것을 특징으로 하는 웨이퍼의 금속 불순물 평가방법.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서,상기 금속 불순물은 구리인 것을 특징으로 하는 웨이퍼의 금속 불순물 평가방법.
- 웨이퍼의 금속 불순물 평가방법시 사용되는 웨이퍼 가열장치에 있어서,상기 웨이퍼 가열장치는,프레임;상기 프레임의 상단에 구비되어 웨이퍼의 하면 일부를 지지하는 웨이퍼 지지대;상기 프레임의 하단에 상기 웨이퍼 지지대와 이격 설치되어 상기 웨이퍼 지지대 상에 적치된 웨이퍼 내부의 금속 불순물을 웨이퍼 표면으로 확산시키기 위해상기 웨이퍼에 적외선을 방사하는 적외선 램프; 및상기 적외선 램프에 전기적으로 연결된 전원부;를 포함하는 것을 특징으로 하는 웨이퍼 가열장치.
- 제5항에 있어서,상기 전원부에는 타이머가 부착된 것을 특징으로 하는 웨이퍼 가열 장치.
- 제5항에 있어서,상기 적외선램프는 복수 개인 것을 특징으로 하는 웨이퍼 가열 장치.
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KR1020050052463A KR100668101B1 (ko) | 2005-06-17 | 2005-06-17 | 웨이퍼의 금속 불순물 평가 방법 및 웨이퍼 가열 장치 |
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KR1020050052463A KR100668101B1 (ko) | 2005-06-17 | 2005-06-17 | 웨이퍼의 금속 불순물 평가 방법 및 웨이퍼 가열 장치 |
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KR20060132231A KR20060132231A (ko) | 2006-12-21 |
KR100668101B1 true KR100668101B1 (ko) | 2007-01-11 |
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Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20030054730A (ko) * | 2001-12-26 | 2003-07-02 | 주식회사 실트론 | 실리콘 웨이퍼의 금속 불순물 분석을 위한 에칭장치 |
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Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20030054730A (ko) * | 2001-12-26 | 2003-07-02 | 주식회사 실트론 | 실리콘 웨이퍼의 금속 불순물 분석을 위한 에칭장치 |
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