KR100860466B1 - 씨모스 이미지센서 및 그 제조방법 - Google Patents
씨모스 이미지센서 및 그 제조방법 Download PDFInfo
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- KR100860466B1 KR100860466B1 KR1020060135759A KR20060135759A KR100860466B1 KR 100860466 B1 KR100860466 B1 KR 100860466B1 KR 1020060135759 A KR1020060135759 A KR 1020060135759A KR 20060135759 A KR20060135759 A KR 20060135759A KR 100860466 B1 KR100860466 B1 KR 100860466B1
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- 238000000034 method Methods 0.000 title claims description 46
- 238000004519 manufacturing process Methods 0.000 title claims description 26
- 239000000758 substrate Substances 0.000 claims abstract description 66
- 239000003990 capacitor Substances 0.000 claims abstract description 43
- 229910052751 metal Inorganic materials 0.000 claims description 56
- 239000002184 metal Substances 0.000 claims description 56
- 239000010410 layer Substances 0.000 claims description 46
- 239000011229 interlayer Substances 0.000 claims description 18
- 239000004065 semiconductor Substances 0.000 claims description 17
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 14
- 229910052718 tin Inorganic materials 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 10
- 230000004888 barrier function Effects 0.000 claims description 9
- 229910052721 tungsten Inorganic materials 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims 1
- 239000010408 film Substances 0.000 description 31
- 230000008569 process Effects 0.000 description 22
- 238000005240 physical vapour deposition Methods 0.000 description 7
- 238000002161 passivation Methods 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 3
- 239000005380 borophosphosilicate glass Substances 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
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- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000000608 laser ablation Methods 0.000 description 2
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- 230000008901 benefit Effects 0.000 description 1
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- 238000004140 cleaning Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 229910052710 silicon Inorganic materials 0.000 description 1
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- 238000007740 vapor deposition Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14634—Assemblies, i.e. Hybrid structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14683—Processes or apparatus peculiar to the manufacture or treatment of these devices or parts thereof
- H01L27/1469—Assemblies, i.e. hybrid integration
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Solid State Image Pick-Up Elements (AREA)
Abstract
Description
Claims (20)
- 삭제
- 포토 다이오드 셀이 형성된 제 1 기판;트랜지스터와 커패시터를 포함하는 로직 회로부가 형성된 제2 기판; 및상기 포토 다이오드 셀과 상기 로직 회로부를 전기적으로 연결시키는 연결전극;을 포함하며,상기 제 1 기판은,반도체 기판에 형성된 포토 다이오드 셀;상기 포토 다이오드 셀과 상기 연결전극 사이에 형성되며, 상기 반도체 기판을 관통하도록 형성된 관통전극; 및상기 포토 다이오드 셀 및 관통전극 상에 형성된 컬러필터;를 포함하는 것을 특징으로 하는 씨모스 이미지센서.
- 제2 항에 있어서,상기 관통전극은 W, Cu, Al, Ag, Au 중에서 선택된 어느 하나 이상의 물질로 형성된 것을 특징으로 하는 씨모스 이미지센서.
- 제2 항에 있어서,상기 반도체기판과 상기 관통전극 사이에 형성된 배리어 메탈을 더 포함하는 것을 특징으로 하는 씨모스 이미지센서.
- 제4 항에 있어서,상기 배리어 메탈은Ti, TiN, Ti/TiN, Ta, TaN, Ta/TaN, TaN/Ta, Co, Co화합물, Ni, Ni 화합물, W, W화합물, 질화물 중에서 선택된 어느 하나 이상의 물질로 형성되는 것을 특징으로 하는 씨모스 이미지센서.
- 제2 항에 있어서,상기 트랜지스터와 커패시터를 포함하는 로직회로가 형성된 제2 기판은기판의 일측에 형성된 트랜지스터;상기 트랜지스터가 형성된 기판의 타측에 형성된 커패시터;상기 트랜지스터와 상기 커패시터 상에 형성된 탑전극; 및패드를 오픈하면서 상기 탑전극 상에 형성된 보호막;을 포함하는 것을 특징으로 하는 씨모스 이미지센서.
- 제6 항에 있어서,상기 오픈된 패드는 상기 관통전극과 수직으로 상호 대비되는 위치인 것을 특징으로 하는 씨모스 이미지센서.
- 삭제
- 삭제
- 포토 다이오드 셀이 형성된 제 1 기판을 제공하는 단계;트랜지스터와 커패시터를 포함하는 로직 회로부가 형성된 제2 기판을 제공하는 단계; 및상기 제 2 기판 위에 상기 제 1 기판을 적층 형성하고, 상기 포토 다이오드 셀과 상기 로직 회로부를 전기적으로 연결시키는 단계;를 포함하며,상기 포토 다이오드 셀과 상기 로직 회로부는 연결전극을 통하여 전기적으로 연결되며,상기 제 1 기판을 제공하는 단계는,반도체 기판에 포토 다이오드 셀을 형성하는 단계;상기 포토 다이오드 셀과 상기 연결전극 사이에 형성되며, 상기 반도체 기판을 상측으로 관통하는 관통전극을 형성하는 단계; 및상기 포토 다이오드 셀 및 관통전극 상에 컬러필터를 형성하는 단계;를 포함하는 것을 특징으로 하는 씨모스 이미지센서 제조방법.
- 제10 항에 있어서,상기 제 1 기판을 제공하는 단계는,상기 컬러필터를 형성하는 단계 후에 상기 반도체 기판의 하측으로 상기 관통전극이 노출되도록 하는 단계를 더 포함하는 것을 특징으로 하는 씨모스 이미지센서 제조방법.
- 제10 항에 있어서,상기 연결전극은 상기 관통전극을 통하여 상기 포토 다이오드 셀과 전기적으로 연결되는 것을 특징으로 하는 이미지 센서 제조방법.
- 제10 항에 있어서,상기 관통전극은 W, Cu, Al, Ag, Au 중에서 선택된 어느 하나 이상의 물질로 형성되는 것을 특징으로 하는 씨모스 이미지센서 제조방법.
- 제10 항에 있어서,상기 반도체기판과 상기 관통전극 사이에 배리어 메탈을 형성하는 단계를 더 포함하는 것을 특징으로 하는 씨모스 이미지센서의 제조방법.
- 제14 항에 있어서,상기 배리어 메탈을 형성하는 단계는Ti, TiN, Ti/TiN, Ta, TaN, Ta/TaN, TaN/Ta, Co, Co화합물, Ni, Ni 화합물, W, W화합물, 질화물 중에서 선택된 어느 하나 이상의 물질로 형성되는 것을 특징으로 하는 씨모스 이미지센서 제조방법.
- 제12 항에 있어서,상기 트랜지스터와 커패시터를 포함하는 로직회로부가 형성된 제2 기판을 제공하는 단계는기판의 일측에 트랜지스터를 형성하는 단계;상기 트랜지스터가 형성된 기판 상에 금속배선과 상기 트랜지스터가 형성된 기판의 타측에 커패시터의 하부전극을 형성하는 단계;상기 금속배선과 상기 하부전극 상에 층간절연층을 형성하는 단계; 및상기 하부전극 상측의 상기 층간절연층 상에 상부전극을 형성하는 단계;를 포함하는 것을 특징으로 하는 씨모스 이미지센서 제조방법.
- 제16 항에 있어서,상기 상부전극을 형성하는 단계 후에,상기 상부전극이 형성된 기판의 전면에 절연층을 형성하는 단계;상기 절연층 상에 탑전극을 형성하는 단계;상기 탑전극 상에 보호막을 형성하는 단계; 및상기 보호막에 패드를 오픈하는 단계;를 포함하는 것을 특징으로 하는 씨모스 이미지센서 제조방법.
- 제17 항에 있어서,상기 오픈된 패드는 상기 관통전극과 수직으로 대비되는 위치인 것을 특징으로 하는 씨모스 이미지센서 제조방법.
- 제16 항에 있어서,상기 금속배선과 상기 하부전극 상에 층간절연층을 형성하는 단계는,상기 금속배선과 상기 하부전극 상에 층간절연층을 형성하는 단계; 및상기 층간절연층을 커패시터 용량에 적합한 두께만 남도록 평탄화 공정을 진행하는 단계;를 포함하는 것을 특징으로 하는 씨모스 이미지센서 제조방법.
- 제16 항에 있어서,상기 금속배선과 상기 하부전극 상에 층간절연층을 형성하는 단계는,상기 금속배선과 상기 하부전극 상에 더미 층간절연층을 형성하는 단계;상기 하부 전극이 노출될 때까지 상기 더미 층간절연층을 평탄화공정을 진행하는 단계; 및상기 노출된 하부 전극 상에 커패시터 용량에 적합한 두께로 층간절연층을 형성하는 단계;를 포함하는 것을 특징으로 하는 씨모스 이미지센서 제조방법.
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KR1020060135759A KR100860466B1 (ko) | 2006-12-27 | 2006-12-27 | 씨모스 이미지센서 및 그 제조방법 |
US11/964,415 US7745250B2 (en) | 2006-12-27 | 2007-12-26 | Image sensor and method for manufacturing the same |
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KR1020060135759A KR100860466B1 (ko) | 2006-12-27 | 2006-12-27 | 씨모스 이미지센서 및 그 제조방법 |
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