JP4667030B2 - 固体撮像装置用の半導体基板とその製造方法 - Google Patents
固体撮像装置用の半導体基板とその製造方法 Download PDFInfo
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- JP4667030B2 JP4667030B2 JP2004358343A JP2004358343A JP4667030B2 JP 4667030 B2 JP4667030 B2 JP 4667030B2 JP 2004358343 A JP2004358343 A JP 2004358343A JP 2004358343 A JP2004358343 A JP 2004358343A JP 4667030 B2 JP4667030 B2 JP 4667030B2
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- 239000000758 substrate Substances 0.000 title claims description 65
- 239000004065 semiconductor Substances 0.000 title claims description 33
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 238000003384 imaging method Methods 0.000 title description 20
- 238000000034 method Methods 0.000 claims description 32
- 238000010438 heat treatment Methods 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 21
- 229910052760 oxygen Inorganic materials 0.000 claims description 21
- 239000001301 oxygen Substances 0.000 claims description 21
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 16
- 229920005591 polysilicon Polymers 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 33
- 241000519995 Stachys sylvatica Species 0.000 description 18
- 238000005247 gettering Methods 0.000 description 18
- 229910001385 heavy metal Inorganic materials 0.000 description 12
- 230000007547 defect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 229910052814 silicon oxide Inorganic materials 0.000 description 5
- 239000011229 interlayer Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000002161 passivation Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005468 ion implantation Methods 0.000 description 2
- 238000001556 precipitation 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
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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
- H01L27/14683—Processes or apparatus peculiar to the manufacture or treatment of these devices or parts thereof
- H01L27/14698—Post-treatment for the devices, e.g. annealing, impurity-gettering, shor-circuit elimination, recrystallisation
-
- 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
- H01L31/0248—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 characterised by their semiconductor bodies
- H01L31/036—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 characterised by their semiconductor bodies characterised by their crystalline structure or particular orientation of the crystalline planes
- H01L31/0368—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 characterised by their semiconductor bodies characterised by their crystalline structure or particular orientation of the crystalline planes including polycrystalline semiconductors
- H01L31/03682—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 characterised by their semiconductor bodies characterised by their crystalline structure or particular orientation of the crystalline planes including polycrystalline semiconductors including only elements of Group IV of the Periodic Table
-
- 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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1804—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof comprising only elements of Group IV of the Periodic Table
- H01L31/182—Special manufacturing methods for polycrystalline Si, e.g. Si ribbon, poly Si ingots, thin films of polycrystalline Si
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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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
前記バルクマイクロディフェクトを形成した後、前記半導体基板の裏面にポリシリコンを形成する工程と、前記ポリシリコンを前記半導体基板に形成した後、前記半導体基板に金属配線を形成する前に、温度Hが450℃≦H≦750℃の熱処理を1時間以上行う工程とを有することを特徴とする。前記バルクマイクロディフェクトの密度は、1E5/cm 2 以上でありうる。前記ポリシリコンの厚さTは、0.5≦T≦2.0μmでありうる。前記無欠陥領域を形成する工程は、1100℃以上の熱処理でありうる。前記バルクマイクロディフェクトを形成する工程は、2段階の熱処理でありうる。
図1は、本実施の形態の固体撮像装置の等価回路図を示す。
本実施の形態において、第1の実施の形態と違う点は、プロセス中の熱処理によりBMDをさらに増大させるため、金属配線工程前に、温度Hを450度以上で750℃以下の低温熱処理を1時間以上追加することである。
本実施の形態において、第1の実施の形態と違う点は、PBS基板にIG処理を施し、積極的に基板中にBMDを形成することである。本発明の基板作成のプロセスを図3を用いて説明する。
302 転送MOSトランジスタ
303 浮遊拡散領域
304 リセットMOSトランジスタ
305 アレイ中の任意の1行を選択するための選択MOSトランジスタ
306 ソースフォロワーMOSトランジスタ
307 信号読み出し線
308 定電流源
1 フォトダイオード
2 電荷転送用MOSトランジスタ
3 n型半導体基板
4 P型ウエル
4A〜4D ウエル層
4E〜4G N型領域
5 フィールド酸化膜
6 チャネルストップ層
7 転送用MOSゲート電極
8 フォトダイオードN型電荷蓄積領域
9 表面P型領域
10 ドレインn型高濃度領域
11 シリコン酸化膜
12 コンタクトプラグ
13 メタル第一層
14 メタル第一層とメタル第二層層間絶縁膜
15 メタル第二層
16 メタル第二層とメタル第三層層間絶縁膜
17 メタル第三層
18 パッシベーション膜
20 ポリシリコン膜
501、501 n型半導体基板
502、502 Denuded Zone
503、503 IGゲッタリング層
504 シリコン酸化膜
505、505 PolySilicon
Claims (5)
- 光電変換を行う画素が表面に複数配置された画素部を形成するための半導体基板の製造方法であって、
酸素濃度Dが1.3E18≦D≦1.5E18 atoms/cm3(old ASTM)の半導体基板の一部に無欠陥領域を形成する工程と、
前記無欠陥領域を形成した後、前記半導体基板中にバルクマイクロディフェクトを形成する工程と、
前記バルクマイクロディフェクトを形成した後、前記半導体基板の裏面にポリシリコンを形成する工程と、
前記ポリシリコンを前記半導体基板に形成した後、前記半導体基板に金属配線を形成する前に、温度Hが450℃≦H≦750℃の熱処理を1時間以上行う工程と、を有することを特徴とする半導体基板の製造方法。 - 前記バルクマイクロディフェクトの密度が1E5/cm2以上であることを特徴とする請求項1記載の半導体基板の製造方法。
- 前記ポリシリコンの厚さTが0.5≦T≦2.0μmであることを特徴とする請求項1又は2記載の半導体基板の製造方法。
- 前記無欠陥領域を形成する工程は、1100℃以上の熱処理であることを特徴とする請求項1から3のいずれか1項記載の半導体基板の製造方法。
- 前記バルクマイクロディフェクトを形成する工程は、2段階の熱処理であることを特徴とする請求項1から4のいずれか1項記載の半導体基板の製造方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004358343A JP4667030B2 (ja) | 2004-12-10 | 2004-12-10 | 固体撮像装置用の半導体基板とその製造方法 |
US11/291,955 US7387952B2 (en) | 2004-12-10 | 2005-12-02 | Semiconductor substrate for solid-state image pickup device and producing method therefor |
EP05026840A EP1670061A3 (en) | 2004-12-10 | 2005-12-08 | Semiconductor substrate for solid-state image pickup device and producing method therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004358343A JP4667030B2 (ja) | 2004-12-10 | 2004-12-10 | 固体撮像装置用の半導体基板とその製造方法 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2006165462A JP2006165462A (ja) | 2006-06-22 |
JP2006165462A5 JP2006165462A5 (ja) | 2007-12-13 |
JP4667030B2 true JP4667030B2 (ja) | 2011-04-06 |
Family
ID=35583558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004358343A Expired - Fee Related JP4667030B2 (ja) | 2004-12-10 | 2004-12-10 | 固体撮像装置用の半導体基板とその製造方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7387952B2 (ja) |
EP (1) | EP1670061A3 (ja) |
JP (1) | JP4667030B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5825931B2 (ja) * | 2011-08-25 | 2015-12-02 | グローバルウェーハズ・ジャパン株式会社 | 固体撮像素子の製造方法 |
JP6861471B2 (ja) * | 2015-06-12 | 2021-04-21 | キヤノン株式会社 | 撮像装置およびその製造方法ならびにカメラ |
JP6862129B2 (ja) * | 2016-08-29 | 2021-04-21 | キヤノン株式会社 | 光電変換装置および撮像システム |
Citations (8)
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JPH0453140A (ja) * | 1990-06-18 | 1992-02-20 | Fujitsu Ltd | シリコン単結晶ウエハの処理方法 |
JPH04262537A (ja) * | 1991-02-15 | 1992-09-17 | Canon Inc | 光電変換デバイスの製造方法 |
JPH07263453A (ja) * | 1994-03-25 | 1995-10-13 | Toshiba Corp | 半導体装置及びその製造方法 |
JPH0917800A (ja) * | 1995-06-28 | 1997-01-17 | Toshiba Ceramics Co Ltd | シリコンウエーハ及びその製造方法 |
JPH10270455A (ja) * | 1997-03-26 | 1998-10-09 | Toshiba Corp | 半導体基板の製造方法 |
JP2001237247A (ja) * | 2000-02-25 | 2001-08-31 | Shin Etsu Handotai Co Ltd | エピタキシャルウエーハの製造方法及びエピタキシャルウエーハ、並びにエピタキシャル成長用czシリコンウエーハ |
JP2003282577A (ja) * | 2001-11-12 | 2003-10-03 | Siltron Inc | シリコン半導体ウェハ及びその製造方法 |
JP2004221491A (ja) * | 2003-01-17 | 2004-08-05 | Nikon Corp | 固体撮像装置,およびその製造方法 |
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2004
- 2004-12-10 JP JP2004358343A patent/JP4667030B2/ja not_active Expired - Fee Related
-
2005
- 2005-12-02 US US11/291,955 patent/US7387952B2/en not_active Expired - Fee Related
- 2005-12-08 EP EP05026840A patent/EP1670061A3/en not_active Withdrawn
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Also Published As
Publication number | Publication date |
---|---|
EP1670061A2 (en) | 2006-06-14 |
EP1670061A3 (en) | 2011-05-04 |
JP2006165462A (ja) | 2006-06-22 |
US20060124929A1 (en) | 2006-06-15 |
US7387952B2 (en) | 2008-06-17 |
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