KR100718881B1 - 이미지센서용 포토다이오드 및 그 제조 방법 - Google Patents
이미지센서용 포토다이오드 및 그 제조 방법 Download PDFInfo
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- KR100718881B1 KR100718881B1 KR1020050131324A KR20050131324A KR100718881B1 KR 100718881 B1 KR100718881 B1 KR 100718881B1 KR 1020050131324 A KR1020050131324 A KR 1020050131324A KR 20050131324 A KR20050131324 A KR 20050131324A KR 100718881 B1 KR100718881 B1 KR 100718881B1
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- photodiode
- silicon
- light
- uneven surface
- image sensor
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 66
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 66
- 239000010703 silicon Substances 0.000 claims abstract description 66
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 31
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 15
- 229910052760 oxygen Inorganic materials 0.000 claims description 15
- 239000001301 oxygen Substances 0.000 claims description 15
- 230000002950 deficient Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000001788 irregular Effects 0.000 abstract description 2
- 239000002105 nanoparticle Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 19
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 230000031700 light absorption Effects 0.000 description 6
- 229910052581 Si3N4 Inorganic materials 0.000 description 5
- 239000006117 anti-reflective coating Substances 0.000 description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 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
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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
- H01L27/1462—Coatings
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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
- H01L27/14683—Processes or apparatus peculiar to the manufacture or treatment of these devices or parts thereof
- H01L27/14685—Process for coatings or optical elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices 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; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0236—Special surface textures
- H01L31/02363—Special surface textures of the semiconductor body itself, e.g. textured active layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Solid State Image Pick-Up Elements (AREA)
- Light Receiving Elements (AREA)
Abstract
Description
포토다이오드 영역(210)과 포토다이오드를 표면과 분리하기 하여 포토다이오드의 누설 전류를 억제하기 위하여 실리콘 산화물 층(230)이 형성되기 전에 실리콘 요철 면(220) 상에 도핑 영역(240)을 도핑에 의하여 더 포함하여 형성할 수 있다.
Claims (9)
- 삭제
- 이미지센서용 포토다이오드에 있어서,실리콘 기판에 형성되는 포토다이오드 영역;상기 실리콘 기판 및 상기 포토다이오드 영역의 표면에 요철모양으로 형성되는 실리콘 요철 면;상기 형성된 포토다이오드 영역이 표면과 분리되도록 상기 실리콘 요철 면 상에 형성되는 도핑 영역; 및상기 도핑 영역 상에 형성되는 실리콘 산화물 층을 포함하는 것을 특징으로 하는 이미지센서용 포토다이오드.
- 제2항에 있어서, 상기 실리콘 요철 면은,90° 이하의 경사로 형성되어 있는 것을 특징으로 하는 이미지센서용 포토다이오드.
- 제2항 또는 제3항에 있어서, 상기 실리콘 요철 면은,두께가 10nm ~ 1,000nm 인 것을 특징으로 하는 이미지센서용 포토다이오드.
- 실리콘 요철 면을 형성하여 이미지센서용 포토다이오드 제조방법에 있어서,(a)실리콘 기판에 포토다이오드 영역을 형성하는 단계;(b)상기 포토다이오드 영역 상에 산소 부족인 실리콘 산화물 층을 형성하는 단계;(c)상기 산소 부족인 실리콘 산화물 층을 열처리하여 요철모양을 갖는 실리콘 요철 면을 형성하는 단계; 및(d)상기 실리콘 요철 면 상에 실리콘 산화물 층을 형성하는 단계를 포함하는 것을 특징으로 하는 이미지센서용 포토다이오드 제조방법.
- 제5항에 있어서,상기 (d)단계 이전에, 상기 실리콘 요철 면 상에 도핑 영역을 형성하는 단계를 더 포함하는 것을 특징으로 하는 이미지센서용 포토다이오드 제조방법.
- 삭제
- 제5항 또는 제6항에 있어서, 상기 산소 부족인 실리콘 산화물 층(SiOx)은,0.5 ~ 1.5의 x 값을 가지는 것을 특징으로 하는 이미지센서용 포토다이오드 제조방법.
- 제5항 또는 제6항에 있어서, 상기 실리콘 요철 면은,상기 산소 부족인 실리콘 산화물 층의 산소 농도, 상기 산소 부족인 실리콘 산화물 층의 두께, 상기 열처리 온도 및 상기 열처리 시간 중에서 어느 하나 또는 둘 이상의 조절에 의하여 크기와 높이가 결정되는 것을 특징으로 하는 이미지센서용 포토다이오드 제조방법.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050131324A KR100718881B1 (ko) | 2005-12-28 | 2005-12-28 | 이미지센서용 포토다이오드 및 그 제조 방법 |
US12/097,469 US20080290440A1 (en) | 2005-12-28 | 2006-12-04 | Photodiode for Image Sensor and Method of Manufacturing the Same |
PCT/KR2006/005167 WO2007074977A1 (en) | 2005-12-28 | 2006-12-04 | Photodiode for image sensor and method of manufacturing the same |
Applications Claiming Priority (1)
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KR1020050131324A KR100718881B1 (ko) | 2005-12-28 | 2005-12-28 | 이미지센서용 포토다이오드 및 그 제조 방법 |
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KR100718881B1 true KR100718881B1 (ko) | 2007-05-17 |
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KR1020050131324A KR100718881B1 (ko) | 2005-12-28 | 2005-12-28 | 이미지센서용 포토다이오드 및 그 제조 방법 |
Country Status (3)
Country | Link |
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US (1) | US20080290440A1 (ko) |
KR (1) | KR100718881B1 (ko) |
WO (1) | WO2007074977A1 (ko) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100889554B1 (ko) * | 2007-07-31 | 2009-03-23 | 주식회사 동부하이텍 | 씨모스 이미지센서 및 그 제조 방법 |
WO2015156567A1 (ko) * | 2014-04-07 | 2015-10-15 | 주식회사 레이언스 | 이미지센서 및 이의 제조방법 |
CN108463887A (zh) * | 2016-01-21 | 2018-08-28 | 索尼公司 | 摄像器件和电子设备 |
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US7952158B2 (en) | 2007-01-24 | 2011-05-31 | Micron Technology, Inc. | Elevated pocket pixels, imaging devices and systems including the same and method of forming the same |
KR100853097B1 (ko) * | 2006-12-22 | 2008-08-19 | 동부일렉트로닉스 주식회사 | 반도체 소자의 제조방법 |
JP4852497B2 (ja) * | 2007-08-27 | 2012-01-11 | 富士フイルム株式会社 | 固体撮像素子 |
JP2013211541A (ja) * | 2012-02-28 | 2013-10-10 | Kyocera Corp | 太陽電池素子および太陽電池素子の製造方法 |
KR102219199B1 (ko) | 2014-04-29 | 2021-02-23 | 삼성전자주식회사 | 이미지 센서의 픽셀 어레이 및 이미지 센서 |
JP6971722B2 (ja) * | 2017-09-01 | 2021-11-24 | ソニーセミコンダクタソリューションズ株式会社 | 固体撮像装置および電子機器 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR980012580A (ko) * | 1996-07-16 | 1998-04-30 | 김광호 | 고체 촬상소자 |
Family Cites Families (4)
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KR0151258B1 (ko) * | 1995-06-22 | 1998-10-01 | 문정환 | 씨씨디 영상센서 및 그 제조방법 |
US6465860B2 (en) * | 1998-09-01 | 2002-10-15 | Kabushiki Kaisha Toshiba | Multi-wavelength semiconductor image sensor and method of manufacturing the same |
KR100595876B1 (ko) * | 1999-12-28 | 2006-07-03 | 매그나칩 반도체 유한회사 | 이미지센서의 포토다이오드 제조방법 |
JP4448087B2 (ja) * | 2004-12-30 | 2010-04-07 | 東部エレクトロニクス株式会社 | Cmosイメージセンサーとその製造方法 |
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2005
- 2005-12-28 KR KR1020050131324A patent/KR100718881B1/ko active IP Right Grant
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2006
- 2006-12-04 WO PCT/KR2006/005167 patent/WO2007074977A1/en active Application Filing
- 2006-12-04 US US12/097,469 patent/US20080290440A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR980012580A (ko) * | 1996-07-16 | 1998-04-30 | 김광호 | 고체 촬상소자 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100889554B1 (ko) * | 2007-07-31 | 2009-03-23 | 주식회사 동부하이텍 | 씨모스 이미지센서 및 그 제조 방법 |
WO2015156567A1 (ko) * | 2014-04-07 | 2015-10-15 | 주식회사 레이언스 | 이미지센서 및 이의 제조방법 |
US9923018B2 (en) | 2014-04-07 | 2018-03-20 | Rayence Co., Ltd. | Image sensor |
CN108463887A (zh) * | 2016-01-21 | 2018-08-28 | 索尼公司 | 摄像器件和电子设备 |
CN108463887B (zh) * | 2016-01-21 | 2022-12-16 | 索尼公司 | 摄像器件和电子设备 |
Also Published As
Publication number | Publication date |
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WO2007074977A1 (en) | 2007-07-05 |
US20080290440A1 (en) | 2008-11-27 |
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