JP2011129935A - Cmosイメージセンサの製造方法 - Google Patents
Cmosイメージセンサの製造方法 Download PDFInfo
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- JP2011129935A JP2011129935A JP2010286293A JP2010286293A JP2011129935A JP 2011129935 A JP2011129935 A JP 2011129935A JP 2010286293 A JP2010286293 A JP 2010286293A JP 2010286293 A JP2010286293 A JP 2010286293A JP 2011129935 A JP2011129935 A JP 2011129935A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000001257 hydrogen Substances 0.000 claims abstract description 35
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 35
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000004065 semiconductor Substances 0.000 claims abstract description 22
- -1 hydrogen ions Chemical class 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 19
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910004205 SiNX Inorganic materials 0.000 claims description 2
- 229910020286 SiOxNy Inorganic materials 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000001312 dry etching Methods 0.000 claims description 2
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 2
- 238000001039 wet etching Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 37
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- 238000005530 etching Methods 0.000 description 8
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 6
- 239000011229 interlayer Substances 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 238000005468 ion implantation Methods 0.000 description 4
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 4
- 230000006798 recombination Effects 0.000 description 4
- 238000005215 recombination Methods 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000005380 borophosphosilicate glass Substances 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 238000001505 atmospheric-pressure chemical vapour deposition Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 2
- 229910021342 tungsten silicide Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon 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
- H01L27/14601—Structural or functional details thereof
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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
- H01L27/14609—Pixel-elements with integrated switching, control, storage or amplification elements
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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
- H01L27/1462—Coatings
- H01L27/14621—Colour filter arrangements
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- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/1462—Coatings
- H01L27/14623—Optical shielding
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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
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- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14625—Optical elements or arrangements associated with the device
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- H01L27/144—Devices controlled by radiation
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- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Solid State Image Pick-Up Elements (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Light Receiving Elements (AREA)
- Formation Of Insulating Films (AREA)
Abstract
【解決手段】半導体基板41上に形成されたフォトダイオード47と周辺素子とを含む半導体構造体を提供する第1ステップと、前記半導体構造体上に絶縁膜52を形成する第2ステップと、前記絶縁膜上に水素イオンを含有する水素含有誘電体膜53を形成する第3ステップと、前記水素含有絶縁層内の水素イオンを前記フォトダイオードの表面に拡散させてダングリングボンド(dangling bond)を除去する第4ステップと、前記水素含有誘電体膜を除去する第5ステップとを含んでなるCMOSイメージセンサの製造方法。
【選択図】図2B
Description
42 P型ウェル
43 フィールド絶縁膜
47 フォトダイオード
52 PMD層
53 水素含有誘電層
60 層間絶縁膜
63 素子保護膜
64 カラーフィルタ
65 マイクロレンズ平坦層
66 マイクロレンズ
Claims (7)
- CMOSイメージセンサの製造方法において、半導体基板上に形成されたフォトダイオードと周辺素子とを含む半導体構造体を提供する第1ステップと、
前記半導体構造体上に絶縁膜を形成する第2ステップと、
前記絶縁膜上に水素イオンを含有する水素含有誘電体膜を形成する第3ステップと、
前記水素含有絶縁層内の水素イオンを前記フォトダイオードの表面に拡散させてダングリングボンド(dangling bond)を除去する第4ステップと、
前記水素含有誘電体膜を除去する第5ステップと
を含んでなるCMOSイメージセンサの製造方法。 - 前記水素含有誘電体膜が、SiOx、SiNx、SiOxNyおよびSi3N4のいずれか1種により形成されることを特徴とする請求項1に記載のCMOSイメージセンサの製造方法。
- 前記水素含有誘電体膜が、プラズマ化学気相蒸着法(PECVD:plasma enhanced chemical vapor deposition)により、蒸着形成されることを特徴とする請求項1に記載のCMOSイメージセンサの製造方法。
- 前記第4ステップが、熱処理により行われることを特徴とする請求項1に記載のCMOSイメージセンサの製造方法。
- 前記第5ステップが、湿式エッチングまたは乾式エッチングにより行われることを特徴とする請求項1に記載のCMOSイメージセンサの製造方法。
- 前記水素含有誘電体膜が、7000〜8000Åの厚さに蒸着されることを特徴とする請求項1に記載のCMOSイメージセンサの製造方法。
- 前記水素含有誘電体膜が、前記フォトダイオード上部のみに形成されることを特徴とする請求項1に記載のCMOSイメージセンサの製造方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-1999-0063985A KR100390822B1 (ko) | 1999-12-28 | 1999-12-28 | 이미지센서에서의 암전류 감소 방법 |
KR1999-63985 | 1999-12-28 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000392084A Division JP2001267547A (ja) | 1999-12-28 | 2000-12-25 | Cmosイメージセンサの製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2011129935A true JP2011129935A (ja) | 2011-06-30 |
Family
ID=19631304
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000392084A Withdrawn JP2001267547A (ja) | 1999-12-28 | 2000-12-25 | Cmosイメージセンサの製造方法 |
JP2010286293A Pending JP2011129935A (ja) | 1999-12-28 | 2010-12-22 | Cmosイメージセンサの製造方法 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000392084A Withdrawn JP2001267547A (ja) | 1999-12-28 | 2000-12-25 | Cmosイメージセンサの製造方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US6794215B2 (ja) |
JP (2) | JP2001267547A (ja) |
KR (1) | KR100390822B1 (ja) |
FR (1) | FR2805665A1 (ja) |
Families Citing this family (70)
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KR20030040865A (ko) | 2001-11-16 | 2003-05-23 | 주식회사 하이닉스반도체 | 암전류를 감소시키기 위한 이미지센서의 제조 방법 |
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Also Published As
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US6794215B2 (en) | 2004-09-21 |
JP2001267547A (ja) | 2001-09-28 |
KR20010061489A (ko) | 2001-07-07 |
KR100390822B1 (ko) | 2003-07-10 |
FR2805665A1 (fr) | 2001-08-31 |
US20010023086A1 (en) | 2001-09-20 |
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