JP4423257B2 - Cmosイメージセンサとその製造方法 - Google Patents
Cmosイメージセンサとその製造方法 Download PDFInfo
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- JP4423257B2 JP4423257B2 JP2005378007A JP2005378007A JP4423257B2 JP 4423257 B2 JP4423257 B2 JP 4423257B2 JP 2005378007 A JP2005378007 A JP 2005378007A JP 2005378007 A JP2005378007 A JP 2005378007A JP 4423257 B2 JP4423257 B2 JP 4423257B2
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- image sensor
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- 238000004519 manufacturing process Methods 0.000 title claims description 29
- 239000012535 impurity Substances 0.000 claims description 110
- 238000000034 method Methods 0.000 claims description 35
- 239000000758 substrate Substances 0.000 claims description 29
- 239000004065 semiconductor Substances 0.000 claims description 27
- 150000002500 ions Chemical class 0.000 claims description 21
- 238000002955 isolation Methods 0.000 claims description 20
- 238000005468 ion implantation Methods 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 229910052733 gallium Inorganic materials 0.000 claims description 5
- 229910015890 BF2 Inorganic materials 0.000 claims description 4
- 229910052738 indium Inorganic materials 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 description 25
- 238000012546 transfer Methods 0.000 description 15
- 125000006850 spacer group Chemical group 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 229920002120 photoresistant polymer Polymers 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000005036 potential barrier Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000001444 catalytic combustion detection Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
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Classifications
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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
- H01L27/14689—MOS based technologies
-
- 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
- H01L27/14601—Structural or functional details thereof
- H01L27/14603—Special geometry or disposition of pixel-elements, address-lines or gate-electrodes
-
- 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
- H01L27/1463—Pixel isolation structures
-
- 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
- H01L31/08—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 in which radiation controls flow of current through the device, e.g. photoresistors
- H01L31/10—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 in which radiation controls flow of current through the device, e.g. photoresistors characterised by potential barriers, e.g. phototransistors
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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)
Description
Claims (6)
- アクティブ領域と素子分離領域とに区画される第1導電型半導体基板と、
前記第1導電型半導体基板の素子分離領域に形成される素子分離膜と、
前記アクティブ領域内のトランジスタ領域であって前記第1導電型半導体基板上に形成されるゲート電極と、
前記ゲート電極の下側の前記半導体基板内に形成される光電荷用の伝送通路としての第2導電型の第1不純物領域と、
前記第2導電型の第1不純物領域と前記ゲート電極との間に形成される第1導電型の第1不純物領域と、
フォトダイオード領域の前記半導体基板内であって、前記ゲート電極の一方の側に形成される第2導電型の第2不純物領域と、
前記第2導電型の第2不純物領域の表面に形成される第1導電型の第2不純物領域と、
前記ゲート電極の他方の側の前記半導体基板内に形成されるソース/ドレイン領域と、
前記ソース/ドレイン領域内に、前記第2導電型の第1不純物領域と前記第1導電型の第1不純物領域に接し、かつ前記ゲート電極の下部領域まで拡大されるように形成される第1導電型の第3不純物領域と、
前記ソース/ドレイン領域内に、前記第1導電型の第3不純物領域と接するように形成される高濃度第2導電型の不純物領域と
を含み、
前記第2導電型の第1不純物領域は、第1導電型の第1不純物領域の下に形成され、かつ前記第2導電型の第2不純物領域と前記第1導電型の第3不純物領域の間に両領域と接するように形成されることを特徴とするCMOSイメージセンサ。 - 前記第1導電型の第3不純物領域を形成するために注入される第1導電型不純物イオンは、B、BF2、Ga、またはInのうち何れか一つであることを特徴とする請求項1に記載のCMOSイメージセンサ。
- アクティブ領域と素子分離領域とが区画された第1導電型半導体基板のアクティブ領域の表面に第1導電型の第1不純物領域を形成する段階と、
前記アクティブ領域内のトランジスタ形成領域における前記第1導電型の第1不純物領域の下側に光電荷用の伝送通路としての第2導電型の第1不純物領域を形成する段階と、
前記トランジスタ形成領域の前記半導体基板上の前記第1導電型の第1不純物領域及び第2導電型の第1不純物領域の上方にゲート電極を形成する段階と、
前記半導体基板内の前記アクティブ領域におけるフォトダイオード形成領域であって、前記ゲート電極の一方の側に第2導電型の第2不純物領域を形成する段階と、
前記第2導電型の第2不純物領域の表面に第1導電型の第2不純物領域を形成する段階と、
前記ゲート電極の他方の側の前記半導体基板内にソース/ドレイン領域を形成する段階と、
前記ソース/ドレイン領域内に、前記第2導電型の第1不純物領域と前記第1導電型の第1不純物領域に接し、かつ前記ゲート電極の下部領域まで拡大されるように第1導電型の第3不純物領域を形成する段階と、
前記ソース/ドレイン領域内に、前記第1導電型の第3不純物領域と接するように高濃度第2導電型の不純物領域を形成する段階と
を含み、
前記第2導電型の第1不純物領域は、第1導電型の第1不純物領域の下に形成され、かつ前記第2導電型の第2不純物領域と前記第1導電型の第3不純物領域の間に両領域と接するように形成されることを特徴とするCMOSイメージセンサの製造方法。 - 前記第1導電型の第3不純物領域は、チルトイオン注入方法で第1導電型不純物イオンを注入することで形成することを特徴とする請求項3に記載のCMOSイメージセンサの製造方法。
- 前記第1導電型の第3不純物領域は、イオン注入角度を調節することによって前記ゲート電極の下部領域まで拡大するように形成されることを特徴とする請求項3に記載のCMOSイメージセンサの製造方法。
- 前記第1導電型の第3不純物領域を形成するために注入される第1導電型不純物イオンは、B、BF2、Ga、またはInのうち何れか一つであることを特徴とする請求項3に記載のCMOSイメージセンサの製造方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040114781A KR100606910B1 (ko) | 2004-12-29 | 2004-12-29 | Cmos 이미지 센서 및 그의 제조 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006191094A JP2006191094A (ja) | 2006-07-20 |
JP4423257B2 true JP4423257B2 (ja) | 2010-03-03 |
Family
ID=36610408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005378007A Expired - Fee Related JP4423257B2 (ja) | 2004-12-29 | 2005-12-28 | Cmosイメージセンサとその製造方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20060138492A1 (ja) |
JP (1) | JP4423257B2 (ja) |
KR (1) | KR100606910B1 (ja) |
CN (1) | CN100511694C (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008021957A (ja) * | 2006-06-15 | 2008-01-31 | Matsushita Electric Ind Co Ltd | 固体撮像装置 |
KR100857453B1 (ko) * | 2006-09-29 | 2008-09-08 | 한국전자통신연구원 | 저전압용 이미지 센서의 감광 픽셀 |
KR100869744B1 (ko) * | 2006-12-29 | 2008-11-21 | 동부일렉트로닉스 주식회사 | 씨모스 이미지 센서 및 그 제조방법 |
KR100808950B1 (ko) | 2007-01-30 | 2008-03-04 | 삼성전자주식회사 | 씨모스 이미지 센서 및 그 제조 방법 |
KR100833609B1 (ko) * | 2007-01-31 | 2008-05-30 | 삼성전자주식회사 | 씨모스 이미지 센서 및 그 제조 방법 |
KR100871894B1 (ko) * | 2008-06-24 | 2008-12-05 | 한국전자통신연구원 | 저전압용 이미지 센서의 감광 픽셀 |
KR100872777B1 (ko) * | 2008-06-24 | 2008-12-09 | 한국전자통신연구원 | 저전압용 이미지 센서의 감광 픽셀 |
US20110032405A1 (en) * | 2009-08-07 | 2011-02-10 | Omnivision Technologies, Inc. | Image sensor with transfer gate having multiple channel sub-regions |
CN107994044A (zh) * | 2017-12-15 | 2018-05-04 | 上海华力微电子有限公司 | Cmos图像传感器及其制作方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2848757B2 (ja) * | 1993-03-19 | 1999-01-20 | シャープ株式会社 | 電界効果トランジスタおよびその製造方法 |
US6100556A (en) * | 1997-11-14 | 2000-08-08 | Motorola Inc. | Method of forming a semiconductor image sensor and structure |
US6023081A (en) * | 1997-11-14 | 2000-02-08 | Motorola, Inc. | Semiconductor image sensor |
US6127697A (en) * | 1997-11-14 | 2000-10-03 | Eastman Kodak Company | CMOS image sensor |
US6690423B1 (en) * | 1998-03-19 | 2004-02-10 | Kabushiki Kaisha Toshiba | Solid-state image pickup apparatus |
US6103559A (en) * | 1999-03-30 | 2000-08-15 | Amd, Inc. (Advanced Micro Devices) | Method of making disposable channel masking for both source/drain and LDD implant and subsequent gate fabrication |
KR100494030B1 (ko) * | 2002-01-10 | 2005-06-10 | 매그나칩 반도체 유한회사 | 이미지센서 및 그 제조 방법 |
US6730957B1 (en) * | 2002-11-05 | 2004-05-04 | Winbond Electronics Corporation | Non-volatile memory compatible with logic devices and fabrication method thereof |
JP2004343014A (ja) * | 2003-05-19 | 2004-12-02 | Sharp Corp | 半導体記憶装置、半導体装置、及びそれらの製造方法、並びに携帯電子機器、並びにicカード |
-
2004
- 2004-12-29 KR KR1020040114781A patent/KR100606910B1/ko not_active IP Right Cessation
-
2005
- 2005-12-26 CN CNB2005101376130A patent/CN100511694C/zh not_active Expired - Fee Related
- 2005-12-28 JP JP2005378007A patent/JP4423257B2/ja not_active Expired - Fee Related
- 2005-12-28 US US11/318,575 patent/US20060138492A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20060138492A1 (en) | 2006-06-29 |
KR100606910B1 (ko) | 2006-08-01 |
CN100511694C (zh) | 2009-07-08 |
KR20060076386A (ko) | 2006-07-04 |
CN1819250A (zh) | 2006-08-16 |
JP2006191094A (ja) | 2006-07-20 |
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