JP4718532B2 - 半導体装置の製造方法及びイメージセンサ装置 - Google Patents
半導体装置の製造方法及びイメージセンサ装置Info
- Publication number
- JP4718532B2 JP4718532B2 JP2007245299A JP2007245299A JP4718532B2 JP 4718532 B2 JP4718532 B2 JP 4718532B2 JP 2007245299 A JP2007245299 A JP 2007245299A JP 2007245299 A JP2007245299 A JP 2007245299A JP 4718532 B2 JP4718532 B2 JP 4718532B2
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- semiconductor substrate
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- isolation
- isolation structure
- Prior art date
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- 239000004065 semiconductor Substances 0.000 title claims description 79
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000002955 isolation Methods 0.000 claims description 81
- 239000000758 substrate Substances 0.000 claims description 79
- 238000000034 method Methods 0.000 claims description 45
- 238000005468 ion implantation Methods 0.000 claims description 31
- 230000008569 process Effects 0.000 claims description 25
- 238000011049 filling Methods 0.000 claims description 10
- 238000005530 etching Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 6
- 238000000137 annealing Methods 0.000 claims description 5
- 238000002513 implantation Methods 0.000 claims description 5
- 239000003989 dielectric material Substances 0.000 claims description 2
- 238000005429 filling process Methods 0.000 claims description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 9
- 229910052796 boron Inorganic materials 0.000 description 9
- 239000002019 doping agent Substances 0.000 description 9
- 238000005229 chemical vapour deposition Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 238000004151 rapid thermal annealing Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- -1 dielectric Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000005224 laser annealing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 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
- 238000001039 wet etching Methods 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
- 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
- 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
Landscapes
- 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)
- Element Separation (AREA)
Description
100 半導体装置
110 半導体基板
115 半導体基板110の表面
120 センサ素子
125 分離構造
130 分離トレンチ
140 酸化膜層
150 p型ドーパント(ホウ素)
160 ドープ領域
170 半導体基板
620 y軸(センサ素子間を通過する電子数)
640 x軸(ドープ領域160の深さ)
d1 センサ素子120の深さ
d2 ドープ領域160の深さ
d3 分離トレンチ130の深さ、分離構造125の深さ
w1 ドープ領域160の幅
w2 分離構造125(分離トレンチ130)の上部幅
w3 分離構造125(分離トレンチ130)の下部幅
Claims (7)
- 第1の型の導電性を有する半導体基板を提供する工程と、
前記半導体基板に複数のセンサ素子を形成するセンサ素子形成工程と、
複数の前記センサ素子間に分離トレンチを形成するために、前記半導体基板をエッチングするエッチング工程と、
分離構造を形成するために、誘電体で前記分離トレンチを充填する充填工程と、
少なくとも2つの異なる注入エネルギーを用いて前記分離構造の下部に第1の型の導電性を有するドープ領域を形成するために、前記充填工程の後にイオン注入処理を実施するイオン注入処理工程と、
から構成されることを特徴とする半導体装置の製造方法。 - 前記ドープ領域が、前記分離トレンチを形成するためにエッチングされた前記半導体基板の表面から、この表面とは反対にある前記半導体基板の裏面に形成されることを特徴とする請求項1記載の半導体装置の製造方法。
- 前記エッチング工程の後で、前記充填工程の前に、前記分離トレンチの内側を覆い、前記半導体基板全体を覆って酸化膜層を形成する工程と、
前記酸化膜層を形成する工程と前記充填工程の間に、前記酸化膜層にアニーリング処理を実施する工程と、
を有することを特徴とする請求項1または2記載の半導体装置の製造方法。 - 第1型の導電性を有する半導体基板と、
前記半導体基板に形成された複数のセンサ素子と、
前記複数のセンサ素子間に配置され、分離トレンチを誘電体で充填して形成された分離構造と、
前記分離構造の下部に注入された第1の型の導電性を有するドープ領域と、から構成され、
前記ドープ領域は、前記分離構造を配置した箇所に、前記誘電体を充填して前記分離構造を形成した後、前記分離構造を含むように前記半導体基板の表面からイオン注入処理工程を実施することにより形成され、
前記ドープ領域の深さが、前記分離構造の深さより深いことを特徴とするイメージセンサ装置。 - 前記ドープ領域の前記深さが、前記複数のセンサ素子深さの2倍を超える深さであることを特徴とする請求項4記載のイメージセンサ装置。
- 前記ドープ領域の幅が、前記分離構造の下部あるいは上部の幅より大きいことを特徴とする請求項5記載のイメージセンサ装置。
- 前記ドープ領域が、前記表面と反対にある前記半導体基板の裏面に形成されることを特徴とする請求項4記載のイメージセンサ装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/682,633 US8440495B2 (en) | 2007-03-06 | 2007-03-06 | Method for reducing crosstalk in image sensors using implant technology |
US11/682,633 | 2007-03-06 |
Publications (2)
Publication Number | Publication Date |
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JP2008218968A JP2008218968A (ja) | 2008-09-18 |
JP4718532B2 true JP4718532B2 (ja) | 2011-07-06 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2007245299A Active JP4718532B2 (ja) | 2007-03-06 | 2007-09-21 | 半導体装置の製造方法及びイメージセンサ装置 |
Country Status (5)
Country | Link |
---|---|
US (2) | US8440495B2 (ja) |
JP (1) | JP4718532B2 (ja) |
KR (1) | KR20080081800A (ja) |
CN (1) | CN101261957B (ja) |
TW (1) | TWI358824B (ja) |
Families Citing this family (26)
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US8440495B2 (en) | 2007-03-06 | 2013-05-14 | Taiwan Semiconductor Manufacturing Company, Ltd. | Method for reducing crosstalk in image sensors using implant technology |
US8237206B2 (en) | 2008-08-12 | 2012-08-07 | United Microelectronics Corp. | CMOS image sensor, method of making the same, and method of suppressing dark leakage and crosstalk for CMOS image sensor |
JP2010056402A (ja) * | 2008-08-29 | 2010-03-11 | Panasonic Corp | 固体撮像素子 |
US7824948B2 (en) * | 2009-01-21 | 2010-11-02 | Taiwan Semiconductor Manufacturing Company, Ltd. | Method and structure for reducing cross-talk in image sensor devices |
KR101776955B1 (ko) | 2009-02-10 | 2017-09-08 | 소니 주식회사 | 고체 촬상 장치와 그 제조 방법, 및 전자 기기 |
JP2010225818A (ja) | 2009-03-23 | 2010-10-07 | Toshiba Corp | 固体撮像装置及びその製造方法 |
US8389377B2 (en) * | 2010-04-02 | 2013-03-05 | Taiwan Semiconductor Manufacturing Company, Ltd. | Sensor element isolation in a backside illuminated image sensor |
US8367512B2 (en) | 2010-08-30 | 2013-02-05 | Taiwan Semiconductor Manufacturing Company, Ltd. | Self-aligned implants to reduce cross-talk of imaging sensors |
CN102013434A (zh) * | 2010-10-25 | 2011-04-13 | 上海宏力半导体制造有限公司 | 双极互补金属氧化半导体及其制备方法 |
US8941204B2 (en) * | 2012-04-27 | 2015-01-27 | Taiwan Semiconductor Manufacturing Company, Ltd. | Apparatus and method for reducing cross talk in image sensors |
KR102025718B1 (ko) * | 2012-05-15 | 2019-09-26 | 삼성전자주식회사 | 반도체 소자 및 그 제조 방법 |
KR102083402B1 (ko) | 2013-02-25 | 2020-03-02 | 삼성전자주식회사 | 이미지 센서 및 이의 형성 방법 |
KR102034482B1 (ko) | 2013-03-04 | 2019-10-21 | 삼성전자주식회사 | 이미지 센서 및 이의 형성 방법 |
US9006080B2 (en) * | 2013-03-12 | 2015-04-14 | Taiwan Semiconductor Manufacturing Company, Ltd. | Varied STI liners for isolation structures in image sensing devices |
CN105074928B (zh) * | 2013-03-29 | 2019-05-10 | 索尼公司 | 图像拾取元件和图像拾取装置 |
JP2015056622A (ja) * | 2013-09-13 | 2015-03-23 | 株式会社リコー | 半導体装置 |
FR3019378A1 (fr) * | 2014-03-25 | 2015-10-02 | St Microelectronics Crolles 2 | Structure d'isolement entre des photodiodes |
US9385156B2 (en) * | 2014-11-26 | 2016-07-05 | Taiwan Semiconductor Manufacturing Company Ltd. | Method of manufacturing a back side illuminated (BSI) image sensor |
US9847363B2 (en) * | 2015-10-20 | 2017-12-19 | Taiwan Semiconductor Manufacturing Company, Ltd. | Semiconductor device with a radiation sensing region and method for forming the same |
CN106981495B (zh) * | 2016-01-15 | 2019-10-25 | 中芯国际集成电路制造(上海)有限公司 | 一种cmos图像传感器及其制作方法 |
JP2018181911A (ja) * | 2017-04-04 | 2018-11-15 | 浜松ホトニクス株式会社 | 光半導体装置 |
US10304886B2 (en) * | 2017-09-28 | 2019-05-28 | Taiwan Semiconductor Manufacturing Co., Ltd. | Back-side deep trench isolation (BDTI) structure for pinned photodiode image sensor |
CN108470741A (zh) * | 2018-03-16 | 2018-08-31 | 昆山锐芯微电子有限公司 | 图像传感器及其形成方法 |
CN110504278A (zh) * | 2019-08-28 | 2019-11-26 | 无锡中微晶园电子有限公司 | 一种防串流光敏二极管芯片及其制造方法 |
JP7441086B2 (ja) * | 2020-03-23 | 2024-02-29 | 株式会社東芝 | 光検出器、光検出システム、ライダー装置、及び車 |
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2007
- 2007-03-06 US US11/682,633 patent/US8440495B2/en active Active
- 2007-09-21 JP JP2007245299A patent/JP4718532B2/ja active Active
- 2007-09-21 TW TW096135331A patent/TWI358824B/zh active
- 2007-11-01 CN CN2007101851769A patent/CN101261957B/zh active Active
- 2007-12-04 KR KR1020070125127A patent/KR20080081800A/ko not_active Application Discontinuation
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2013
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JPH03185749A (ja) * | 1989-12-14 | 1991-08-13 | Mitsubishi Electric Corp | 半導体装置の製造方法 |
JP2001007309A (ja) * | 1999-06-24 | 2001-01-12 | Nec Corp | 光電変換装置およびその製造方法 |
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Also Published As
Publication number | Publication date |
---|---|
CN101261957B (zh) | 2010-06-02 |
TWI358824B (en) | 2012-02-21 |
US20130249041A1 (en) | 2013-09-26 |
TW200837937A (en) | 2008-09-16 |
CN101261957A (zh) | 2008-09-10 |
US9196646B2 (en) | 2015-11-24 |
US8440495B2 (en) | 2013-05-14 |
KR20080081800A (ko) | 2008-09-10 |
US20080217719A1 (en) | 2008-09-11 |
JP2008218968A (ja) | 2008-09-18 |
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