KR100887887B1 - 이미지센서 - Google Patents
이미지센서 Download PDFInfo
- Publication number
- KR100887887B1 KR100887887B1 KR1020070112547A KR20070112547A KR100887887B1 KR 100887887 B1 KR100887887 B1 KR 100887887B1 KR 1020070112547 A KR1020070112547 A KR 1020070112547A KR 20070112547 A KR20070112547 A KR 20070112547A KR 100887887 B1 KR100887887 B1 KR 100887887B1
- Authority
- KR
- South Korea
- Prior art keywords
- transistor
- photodiode
- floating diffusion
- electrons
- diffusion region
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 20
- 238000009792 diffusion process Methods 0.000 claims abstract description 20
- 238000010586 diagram Methods 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Images
Classifications
-
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/50—Control of the SSIS exposure
- H04N25/57—Control of the dynamic range
- H04N25/59—Control of the dynamic range by controlling the amount of charge storable in the pixel, e.g. modification of the charge conversion ratio of the floating node capacitance
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors
- H04N25/77—Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components
- H04N25/771—Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components comprising storage means other than floating diffusion
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (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)
- Transforming Light Signals Into Electric Signals (AREA)
Abstract
Description
Claims (4)
- 트랜스퍼트랜지스터, 상기 트랜스퍼트랜지스터의 소스단에 형성된 포토다이오드, 상기 트랜스퍼트랜지스터의 드레인단에 형성된 플로팅 디퓨젼영역, 상기 플로팅 디퓨젼영역과 연결되어 형성된 리셋트랜지스터, 상기 플로팅 디퓨젼영역과 게이트단이 연결되는 드라이브트랜지스터, 상기 드라이브트랜지스터의 일측에 형성된 선택트랜지스터;상기 트랜스퍼트랜지스터의 드레인단인 상기 플로팅디퓨젼영역과 상기 리셋트랜지스터 사이에 형성된 스위칭트랜지스터; 및상기 스위칭트랜지스터 일측에 형성된 스토리지커패시터;를 포함하고,상기 스토리지커패시터는 상기 포토다이오드에서 오버플로우되어 상기 플로팅 디퓨젼영역으로 넘어온 전자들을 상기 스위칭트랜지스터를 온(ON)시켜서 상기 스토리지커패시터(storage cap)로 전달하여 저장 시킨 후 상기 스위칭트랜지스터를 오프(Off)시키며,상기 트랜스퍼트랜지스터가 온(ON)되어 상기 플로팅디퓨젼 영역으로 전자들이 넘어오면, 상기 스위칭트랜지스터를 온(ON)시켜 상기 스토리지커패시터에 저장된 전자들과 합하여 신호전자로 출력하는 것을 특징으로 하는 이미지센서.
- 삭제
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070112547A KR100887887B1 (ko) | 2007-11-06 | 2007-11-06 | 이미지센서 |
US12/239,924 US7884402B2 (en) | 2007-11-06 | 2008-09-29 | Image sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070112547A KR100887887B1 (ko) | 2007-11-06 | 2007-11-06 | 이미지센서 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR100887887B1 true KR100887887B1 (ko) | 2009-03-06 |
Family
ID=40587222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020070112547A KR100887887B1 (ko) | 2007-11-06 | 2007-11-06 | 이미지센서 |
Country Status (2)
Country | Link |
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US (1) | US7884402B2 (ko) |
KR (1) | KR100887887B1 (ko) |
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2007
- 2007-11-06 KR KR1020070112547A patent/KR100887887B1/ko active IP Right Grant
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2008
- 2008-09-29 US US12/239,924 patent/US7884402B2/en active Active
Patent Citations (2)
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KR20060130547A (ko) * | 2004-04-01 | 2006-12-19 | 하마마츠 포토닉스 가부시키가이샤 | 수광부 및 고체 촬상 장치 |
KR20060058391A (ko) * | 2004-11-25 | 2006-05-30 | 삼성전자주식회사 | 씨모스 이미지 센서 |
Also Published As
Publication number | Publication date |
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US7884402B2 (en) | 2011-02-08 |
US20090114961A1 (en) | 2009-05-07 |
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