JP5679459B2 - 横型オーバフロードレインを有するイメージセンサを製造する方法 - Google Patents
横型オーバフロードレインを有するイメージセンサを製造する方法 Download PDFInfo
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- JP5679459B2 JP5679459B2 JP2011540679A JP2011540679A JP5679459B2 JP 5679459 B2 JP5679459 B2 JP 5679459B2 JP 2011540679 A JP2011540679 A JP 2011540679A JP 2011540679 A JP2011540679 A JP 2011540679A JP 5679459 B2 JP5679459 B2 JP 5679459B2
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- 238000000034 method Methods 0.000 title claims description 31
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000002019 doping agent Substances 0.000 claims description 27
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000000059 patterning Methods 0.000 claims description 5
- 238000003384 imaging method Methods 0.000 description 16
- 150000004767 nitrides Chemical class 0.000 description 15
- 239000000758 substrate Substances 0.000 description 14
- 230000008569 process Effects 0.000 description 9
- 238000005530 etching Methods 0.000 description 8
- 230000004888 barrier function Effects 0.000 description 7
- 239000002800 charge carrier Substances 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 229920002120 photoresistant polymer Polymers 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010365 information processing Effects 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000012780 transparent material Substances 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
- H01L27/14665—Imagers using a photoconductor layer
- H01L27/14672—Blooming suppression
- H01L27/14674—Overflow drain 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
- H01L27/148—Charge coupled imagers
- H01L27/14887—Blooming suppression
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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 (5)
- 横型オーバフロードレインを1個又は複数個有するイメージセンサを製造する方法であって、
第1導電型を有する層の上に設けられた絶縁層の上方にハードマスク層を形成するステップと、
ハードマスク層をパターニングすることで、チャネルストップ領域形成対象部位に第1開口を1個又は複数個形成するステップと、
ハードマスク層及び第1開口の上方に第2マスク層を形成するステップと、
第2マスク層をパターニングすることで、対応する第1開口の一部分を占めるよう且つ各第1開口の残りの部分が第2マスク層で占められるよう、横型オーバフロードレイン形成対象部位に第2開口を1個又は複数個形成するステップと、
第1導電型とは逆の第2導電型を有する一種類又は複数種類のドーパントを第2開口経由でインプラントし、第2導電型を有する一種類又は複数種類のドーパントを第1導電型を有する上掲の層内にインプラントすることで横型オーバフロードレインを形成し、横型オーバフロードレインのエッジがハードマスクのエッジにセルフアライメントされるようにするステップと、
第2マスク層を除去するステップと、
第1導電型を有する一種類又は複数種類のドーパントを第1開口経由でインプラントすることで、個々の横型オーバフロードレイン及びそれに隣接する第1導電型の領域内にチャネルストップ領域を形成するステップと、
を有し、
横型オーバフロードレインのエッジが実質的に対応するチャネルストップ領域のエッジにアライメントされるようにする方法。 - 請求項1記載の方法であって、ハードマスク層を除去するステップを有する方法。
- 請求項2記載の方法であって、個々のチャネルストップ領域及びそれに対応する横型オーバフロードレインの上方にフィールド酸化物領域を形成するステップを有する方法。
- 請求項1記載の方法であって、ハードマスク層及び第1開口の上方に第2マスク層を形成するのに先立ち、絶縁層のうち少なくとも第1開口内露出部分を除去するステップを有する方法。
- ある層内に設けられたチャネルストップ領域の一辺に対しその一辺がアライメントされるよう当該チャネルストップ領域内に形成された横型オーバフロードレインと、
それらチャネルストップ領域及び横型オーバフロードレインの上に位置するフィールド酸化物領域と、
を備えるイメージセンサ。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12122708P | 2008-12-10 | 2008-12-10 | |
US61/121,227 | 2008-12-10 | ||
US12/609,296 US8329499B2 (en) | 2008-12-10 | 2009-10-30 | Method of forming lateral overflow drain and channel stop regions in image sensors |
US12/609,296 | 2009-10-30 | ||
PCT/US2009/006283 WO2010068244A1 (en) | 2008-12-10 | 2009-11-25 | Method of fabricating image sensors with lateral overflow drains |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014264852A Division JP6109141B2 (ja) | 2008-12-10 | 2014-12-26 | 横型オーバフロードレインを有するイメージセンサ |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2012511829A JP2012511829A (ja) | 2012-05-24 |
JP2012511829A5 JP2012511829A5 (ja) | 2013-01-17 |
JP5679459B2 true JP5679459B2 (ja) | 2015-03-04 |
Family
ID=41557700
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011540679A Expired - Fee Related JP5679459B2 (ja) | 2008-12-10 | 2009-11-25 | 横型オーバフロードレインを有するイメージセンサを製造する方法 |
JP2014264852A Expired - Fee Related JP6109141B2 (ja) | 2008-12-10 | 2014-12-26 | 横型オーバフロードレインを有するイメージセンサ |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014264852A Expired - Fee Related JP6109141B2 (ja) | 2008-12-10 | 2014-12-26 | 横型オーバフロードレインを有するイメージセンサ |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2359402B1 (ja) |
JP (2) | JP5679459B2 (ja) |
WO (1) | WO2010068244A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106981496B (zh) * | 2017-04-05 | 2019-08-27 | 中国电子科技集团公司第四十四研究所 | 用于帧转移可见光ccd的输出放大器及制作方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4362575A (en) * | 1981-08-27 | 1982-12-07 | Rca Corporation | Method of making buried channel charge coupled device with means for controlling excess charge |
JPS5999758A (ja) * | 1982-11-29 | 1984-06-08 | Toshiba Corp | 相補型mis半導体装置の製造方法 |
JPS63114252A (ja) * | 1986-10-31 | 1988-05-19 | Sony Corp | 固体撮像装置 |
JPH08264747A (ja) * | 1995-03-16 | 1996-10-11 | Eastman Kodak Co | コンテナ側方オーバーフロードレインインプラントを有する固体画像化器及びその製造方法 |
US5585298A (en) * | 1995-03-31 | 1996-12-17 | Eastman Kodak Company | Self aligned antiblooming structure for solid state image sensors |
JP4635291B2 (ja) * | 2000-03-31 | 2011-02-23 | 日本テキサス・インスツルメンツ株式会社 | 半導体装置の製造方法 |
US6583061B2 (en) * | 2001-08-31 | 2003-06-24 | Eastman Kodak Company | Method for creating an anti-blooming structure in a charge coupled device |
US6624453B2 (en) * | 2001-08-31 | 2003-09-23 | Eastman Kodak Company | Lateral overflow drain, anti-blooming structure for CCD devices having improved breakdown voltage |
US6794219B1 (en) * | 2003-07-28 | 2004-09-21 | Eastman Kodak Company | Method for creating a lateral overflow drain, anti-blooming structure in a charge coupled device |
-
2009
- 2009-11-25 EP EP09764111A patent/EP2359402B1/en not_active Not-in-force
- 2009-11-25 JP JP2011540679A patent/JP5679459B2/ja not_active Expired - Fee Related
- 2009-11-25 WO PCT/US2009/006283 patent/WO2010068244A1/en active Application Filing
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2014
- 2014-12-26 JP JP2014264852A patent/JP6109141B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP2359402B1 (en) | 2012-10-24 |
EP2359402A1 (en) | 2011-08-24 |
JP2015057869A (ja) | 2015-03-26 |
WO2010068244A1 (en) | 2010-06-17 |
JP6109141B2 (ja) | 2017-04-05 |
JP2012511829A (ja) | 2012-05-24 |
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