JP2012231027A - 固体撮像装置及びその製造方法 - Google Patents
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- 238000003384 imaging method Methods 0.000 title claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 title claims description 27
- 238000000034 method Methods 0.000 title claims description 19
- 239000004065 semiconductor Substances 0.000 claims abstract description 95
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 72
- 239000000758 substrate Substances 0.000 description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 229910052814 silicon oxide Inorganic materials 0.000 description 6
- 238000001020 plasma etching Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 229910000449 hafnium oxide Inorganic materials 0.000 description 4
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 238000001459 lithography Methods 0.000 description 3
- 238000002161 passivation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000005224 laser annealing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 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
- H01L27/1464—Back illuminated 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
- H01L27/1463—Pixel isolation structures
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- H—ELECTRICITY
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- 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
- H01L27/14632—Wafer-level processed 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
- H01L27/14638—Structures specially adapted for transferring the charges across the imager perpendicular to the imaging plane
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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
- H01L27/14687—Wafer level processing
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- Condensed Matter Physics & Semiconductors (AREA)
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Abstract
【解決手段】固体撮像装置1は、第1及び第2の領域を有する半導体層13と、第1の領域に設けられた画素部と、第2の領域に設けられ、かつ半導体層13を貫通する複数の電極22と、第2の領域に設けられ、かつ半導体層13を貫通し、かつ画素部と複数の電極22とを電気的に分離するガードリング20とを含む。第2の領域の半導体層13の上面は、第1の領域の半導体層13の上面より低い。
【選択図】 図19
Description
以上詳述したように本実施形態では、固体撮像装置1は、半導体層13の第1の領域に設けられた画素部と、半導体層13の第2の領域に設けられた電極部とを備えている。電極部は、半導体層13を貫通する複数の電極22と、半導体層13を貫通しかつ画素部と複数の電極22とを電気的に分離するガードリング20とを備えている。そして、第2の領域の半導体層13の裏面は、第1の領域の半導体層13の裏面より低く設定される。また、複数の電極22及びガードリング20を半導体層13の裏面上に露出させ、露出されたガードリング20を絶縁膜35で覆うと共に、露出された複数の電極22をボンディングパッド37で覆うようにしている。また、固体撮像装置1の製造方法では、半導体層13の裏面側から複数の電極22とガードリング20とを同時に露出させた後、ガードリング20のみ絶縁膜35で覆うようにしている。
Claims (5)
- 第1及び第2の領域を有する半導体層と、
前記第1の領域に設けられた画素部と、
前記第2の領域に設けられ、かつ前記半導体層を貫通する複数の電極と、
前記第2の領域に設けられ、かつ前記半導体層を貫通し、かつ前記画素部と前記複数の電極とを電気的に分離するガードリングと、
を具備し、
前記第2の領域の半導体層の上面は、前記第1の領域の半導体層の上面より低いことを特徴とする固体撮像装置。 - 前記複数の電極及び前記ガードリングは、前記半導体層の上面から露出していることを特徴とする請求項1に記載の固体撮像装置。
- 前記ガードリングの露出した部分を覆う絶縁膜と、
前記複数の電極に電気的に接続された導電性パッドと、
をさらに具備することを特徴とする請求項2に記載の固体撮像装置。 - 画素部が形成された第1の領域を有する半導体層を準備する工程と、
前記半導体層の第2の領域に、前記半導体層の第1の面から埋め込むようにして、複数の電極と、前記画素部と前記複数の電極とを電気的に分離するガードリングとを形成する工程と、
前記複数の電極及び前記ガードリングの端部を露出するように、前記第2の領域の半導体層の第2の面を掘り下げる工程と、
前記ガードリングの露出した部分を絶縁膜で覆う工程と、
前記複数の電極に電気的に接続された導電性パッドを形成する工程と、
を具備することを特徴とする固体撮像装置の製造方法。 - 前記半導体層を掘り下げる工程の前に、前記第1の領域の半導体層をレジストで覆う工程をさらに具備することを特徴とする請求項4に記載の固体撮像装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011098534A JP5826511B2 (ja) | 2011-04-26 | 2011-04-26 | 固体撮像装置及びその製造方法 |
CN201210052063.2A CN102760743B (zh) | 2011-04-26 | 2012-03-01 | 固体拍摄装置及其制造方法 |
TW101107900A TWI458082B (zh) | 2011-04-26 | 2012-03-08 | 固態攝像裝置及其製造方法 |
KR1020120025506A KR101348818B1 (ko) | 2011-04-26 | 2012-03-13 | 고체 촬상 장치 및 그 제조 방법 |
US13/419,553 US8659060B2 (en) | 2011-04-26 | 2012-03-14 | Solid-state imaging device and manufacturing method thereof |
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JP2011098534A JP5826511B2 (ja) | 2011-04-26 | 2011-04-26 | 固体撮像装置及びその製造方法 |
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JP2012231027A true JP2012231027A (ja) | 2012-11-22 |
JP5826511B2 JP5826511B2 (ja) | 2015-12-02 |
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JP2011098534A Expired - Fee Related JP5826511B2 (ja) | 2011-04-26 | 2011-04-26 | 固体撮像装置及びその製造方法 |
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Country | Link |
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US (1) | US8659060B2 (ja) |
JP (1) | JP5826511B2 (ja) |
KR (1) | KR101348818B1 (ja) |
CN (1) | CN102760743B (ja) |
TW (1) | TWI458082B (ja) |
Cited By (3)
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JP2016018920A (ja) * | 2014-07-09 | 2016-02-01 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
US9520430B2 (en) | 2013-07-05 | 2016-12-13 | Sony Corporation | Solid state imaging apparatus, production method thereof and electronic device |
WO2022201745A1 (ja) * | 2021-03-25 | 2022-09-29 | ソニーセミコンダクタソリューションズ株式会社 | 固体撮像装置及び固体撮像装置の製造方法 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5716347B2 (ja) | 2010-10-21 | 2015-05-13 | ソニー株式会社 | 固体撮像装置及び電子機器 |
US8970001B2 (en) * | 2012-12-28 | 2015-03-03 | Taiwan Semiconductor Manufacturing Company, Ltd. | Guard ring design for maintaining signal integrity |
JP6231778B2 (ja) * | 2013-06-05 | 2017-11-15 | キヤノン株式会社 | 電気デバイスおよび放射線検査装置 |
KR102591546B1 (ko) | 2016-09-02 | 2023-10-24 | 에스케이하이닉스 주식회사 | 가드 댐들을 갖는 이미지 센서 |
TWI800487B (zh) | 2016-09-09 | 2023-05-01 | 日商索尼半導體解決方案公司 | 固體攝像元件及製造方法、以及電子機器 |
JPWO2018078766A1 (ja) * | 2016-10-27 | 2019-04-04 | オリンパス株式会社 | 撮像ユニット、内視鏡、および撮像ユニットの製造方法 |
JP2019080017A (ja) * | 2017-10-27 | 2019-05-23 | ソニーセミコンダクタソリューションズ株式会社 | 撮像素子および撮像素子の製造方法、並びに、電子機器 |
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Publication number | Publication date |
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TWI458082B (zh) | 2014-10-21 |
JP5826511B2 (ja) | 2015-12-02 |
US8659060B2 (en) | 2014-02-25 |
US20120275480A1 (en) | 2012-11-01 |
CN102760743B (zh) | 2015-07-15 |
KR20120121342A (ko) | 2012-11-05 |
TW201301486A (zh) | 2013-01-01 |
CN102760743A (zh) | 2012-10-31 |
KR101348818B1 (ko) | 2014-01-07 |
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