JP2006190891A - 固体撮像素子及び固体撮像素子の製造方法 - Google Patents
固体撮像素子及び固体撮像素子の製造方法 Download PDFInfo
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- JP2006190891A JP2006190891A JP2005002772A JP2005002772A JP2006190891A JP 2006190891 A JP2006190891 A JP 2006190891A JP 2005002772 A JP2005002772 A JP 2005002772A JP 2005002772 A JP2005002772 A JP 2005002772A JP 2006190891 A JP2006190891 A JP 2006190891A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
- H10F39/10—Integrated devices
- H10F39/12—Image sensors
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
- H10F39/011—Manufacture or treatment of image sensors covered by group H10F39/12
- H10F39/014—Manufacture or treatment of image sensors covered by group H10F39/12 of CMOS image sensors
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
- H10F39/10—Integrated devices
- H10F39/12—Image sensors
- H10F39/18—Complementary metal-oxide-semiconductor [CMOS] image sensors; Photodiode array image sensors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
- H10F39/80—Constructional details of image sensors
- H10F39/806—Optical elements or arrangements associated with the image sensors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
- H10F39/80—Constructional details of image sensors
- H10F39/807—Pixel isolation structures
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
- H10F39/80—Constructional details of image sensors
- H10F39/811—Interconnections
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- Solid State Image Pick-Up Elements (AREA)
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Abstract
【解決手段】 マトリクス状に配列された受光部7と、受光部の垂直列毎に設けられた各受光部から電荷を転送する転送部とを有する撮像部が形成されたN型シリコン基板1と、N型シリコン基板上に形成されたCMP処理が施され、その表面にカリウム元素が残留する第1の配線間絶縁膜11を備えるCMOS型固体撮像素子100において、N型シリコン基板1と第1の配線間絶縁膜11の間に第1の拡散防止膜30を形成する。
【選択図】 図1
Description
即ち、第1の配線間絶縁膜111と第1の拡散防止膜113との間及び第2の配線間絶縁膜114と第2の拡散防止膜117との間で、配線材料である銅やバリアメタルをCMP研磨する際に研磨剤として使用されるスラリーに多く含有するカリウムが残留し、このカリウムが酸化膜やシリコン基板の中を拡散することとなる。
そして、拡散したカリウムが光電変換素子の受光部に達すると不純物汚染として白点欠陥等の画質劣化に繋がる。
図1は本発明を適用した固体撮像素子の一例であるCMOS型固体撮像素子を説明するための模式的な断面図である。
2 素子分離膜
3 トランジスタのゲート酸化膜
4 トランジスタのゲート電極
5 サイドウォール
6 高濃度拡散層領域
7 受光部
8 シリコン窒化膜
9 層間絶縁膜
10 第1の接続部
10A バリアメタル層
10B タングステン電極層
11 第1の配線間絶縁膜
12 第1の配線層
12A バリアメタル
12B 銅
13 第2の拡散防止膜
14 第2の配線間絶縁膜
15 第2の接続部
15A バリアメタル
15B 銅
16 第2の配線層
17 第3の拡散防止膜
18 カラーレジスト
19 オンチップレンズ
20 開口部
20A 開口領域
21 CVD酸化膜
30 第1の拡散防止膜
50 開口部
100 CMOS型固体撮像素子
Claims (6)
- 受光部を有する撮像領域が形成された半導体基板と、
該半導体基板上に金属元素を含む液体を用いた平坦化処理にて形成された所定の層とを備える固体撮像素子において、
少なくとも前記受光部と前記所定の層の間に第1の拡散防止膜が形成された
ことを特徴とする固体撮像素子。 - 前記半導体基板と前記第1の拡散防止膜の間に、所定の開口部を有する第2の拡散防止膜が形成された
ことを特徴とする請求項1に記載の固体撮像素子。 - 前記所定の層の上層に、受光部領域が開口した第3の拡散防止膜が形成された
ことを特徴とする請求項1に記載の固体撮像素子。 - 前記第1の拡散防止膜は、炭化シリコン若しくは窒化シリコンから成る
ことを特徴とする請求項1に記載の固体撮像素子。 - 半導体基板に受光部を有する撮像領域を形成する工程と、
前記半導体基板上に第1の拡散防止膜を形成する工程と、
該第1の拡散防止膜の上層に所定の層を形成し、該所定の層に金属元素を含む液体を用いた平坦化処理を施す工程とを備える
ことを特徴とする固体撮像素子の製造方法。 - 前記平坦化処理はCMP工程である
ことを特徴とする請求項5に記載の固体撮像素子の製造方法。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005002772A JP4938238B2 (ja) | 2005-01-07 | 2005-01-07 | 固体撮像素子及び固体撮像素子の製造方法 |
| US11/324,862 US7786515B2 (en) | 2005-01-07 | 2006-01-04 | Solid-state imaging device and method of manufacturing the same |
| KR1020060001606A KR101217364B1 (ko) | 2005-01-07 | 2006-01-06 | 고체 촬상 소자 및 고체 촬상 소자의 제조 방법 |
| CNB200610005733XA CN100463202C (zh) | 2005-01-07 | 2006-01-06 | 固态成像装置及其制造方法 |
| US11/830,295 US20070281382A1 (en) | 2005-01-07 | 2007-07-30 | Solid-state imaging device and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005002772A JP4938238B2 (ja) | 2005-01-07 | 2005-01-07 | 固体撮像素子及び固体撮像素子の製造方法 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009105910A Division JP5212246B2 (ja) | 2009-04-24 | 2009-04-24 | 固体撮像素子及び固体撮像素子の製造方法 |
| JP2009214018A Division JP5110060B2 (ja) | 2009-09-16 | 2009-09-16 | 固体撮像素子及び固体撮像素子の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006190891A true JP2006190891A (ja) | 2006-07-20 |
| JP4938238B2 JP4938238B2 (ja) | 2012-05-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005002772A Expired - Fee Related JP4938238B2 (ja) | 2005-01-07 | 2005-01-07 | 固体撮像素子及び固体撮像素子の製造方法 |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US7786515B2 (ja) |
| JP (1) | JP4938238B2 (ja) |
| KR (1) | KR101217364B1 (ja) |
| CN (1) | CN100463202C (ja) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1930950A2 (en) | 2006-12-08 | 2008-06-11 | Sony Corporation | Solid-state image pickup device, method for manufacturing solid-state image pickup device, and camera |
| KR20090117637A (ko) * | 2008-05-09 | 2009-11-12 | 소니 가부시끼 가이샤 | 고체 촬상 장치 및 전자 기기 |
| KR100953153B1 (ko) | 2007-02-23 | 2010-04-19 | 캐논 가부시끼가이샤 | 광전변환장치 및 광전변환장치를 사용한 촬상시스템 |
| JPWO2021199681A1 (ja) * | 2020-03-31 | 2021-10-07 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5159120B2 (ja) * | 2007-02-23 | 2013-03-06 | キヤノン株式会社 | 光電変換装置およびその製造方法 |
| JP4725614B2 (ja) * | 2008-01-24 | 2011-07-13 | ソニー株式会社 | 固体撮像装置 |
| JP5627202B2 (ja) * | 2009-06-18 | 2014-11-19 | キヤノン株式会社 | 固体撮像装置及びその製造方法 |
| JP5304536B2 (ja) * | 2009-08-24 | 2013-10-02 | ソニー株式会社 | 半導体装置 |
| CN102668081B (zh) | 2009-12-26 | 2016-02-03 | 佳能株式会社 | 固态图像拾取装置和图像拾取系统 |
| KR101801259B1 (ko) * | 2010-07-21 | 2017-11-27 | 삼성전자주식회사 | 광 유도 구조물, 상기 광 유도 구조물을 포함하는 이미지 센서, 및 상기 이미지 센서를 포함하는 프로세서 베이스드 시스템 |
| US9153490B2 (en) * | 2011-07-19 | 2015-10-06 | Sony Corporation | Solid-state imaging device, manufacturing method of solid-state imaging device, manufacturing method of semiconductor device, semiconductor device, and electronic device |
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| JP2002270691A (ja) * | 2002-02-07 | 2002-09-20 | Nec Corp | 配線構造 |
| JP2003324189A (ja) * | 2002-05-01 | 2003-11-14 | Sony Corp | 固体撮像素子及び固体撮像装置、並びにこれらの製造方法 |
| JP2004221527A (ja) * | 2003-01-16 | 2004-08-05 | Samsung Electronics Co Ltd | イメージ素子及びその製造方法 |
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| JP4066289B2 (ja) * | 1999-01-08 | 2008-03-26 | パイオニア株式会社 | 情報記録方法 |
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2005
- 2005-01-07 JP JP2005002772A patent/JP4938238B2/ja not_active Expired - Fee Related
-
2006
- 2006-01-04 US US11/324,862 patent/US7786515B2/en not_active Expired - Fee Related
- 2006-01-06 CN CNB200610005733XA patent/CN100463202C/zh not_active Expired - Fee Related
- 2006-01-06 KR KR1020060001606A patent/KR101217364B1/ko not_active Expired - Fee Related
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2007
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| JP2002270691A (ja) * | 2002-02-07 | 2002-09-20 | Nec Corp | 配線構造 |
| JP2003324189A (ja) * | 2002-05-01 | 2003-11-14 | Sony Corp | 固体撮像素子及び固体撮像装置、並びにこれらの製造方法 |
| JP2004221527A (ja) * | 2003-01-16 | 2004-08-05 | Samsung Electronics Co Ltd | イメージ素子及びその製造方法 |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1930950A2 (en) | 2006-12-08 | 2008-06-11 | Sony Corporation | Solid-state image pickup device, method for manufacturing solid-state image pickup device, and camera |
| US8525098B2 (en) | 2006-12-08 | 2013-09-03 | Sony Corporation | Solid-state image pickup device, method for manufacturing solid-state image pickup device, and camera |
| US7973271B2 (en) | 2006-12-08 | 2011-07-05 | Sony Corporation | Solid-state image pickup device, method for manufacturing solid-state image pickup device, and camera |
| KR100953153B1 (ko) | 2007-02-23 | 2010-04-19 | 캐논 가부시끼가이샤 | 광전변환장치 및 광전변환장치를 사용한 촬상시스템 |
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| JP2009272568A (ja) * | 2008-05-09 | 2009-11-19 | Sony Corp | 固体撮像装置と電子機器 |
| US8300128B2 (en) | 2008-05-09 | 2012-10-30 | Sony Corporation | Solid-state image pickup device and electronic apparatus |
| TWI401792B (zh) * | 2008-05-09 | 2013-07-11 | Sony Corp | Solid-state imaging devices and electronic machines |
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| KR101587898B1 (ko) | 2008-05-09 | 2016-01-22 | 소니 주식회사 | 고체 촬상 장치 및 전자 기기 |
| JPWO2021199681A1 (ja) * | 2020-03-31 | 2021-10-07 | ||
| WO2021199681A1 (ja) * | 2020-03-31 | 2021-10-07 | ソニーセミコンダクタソリューションズ株式会社 | 受光素子および電子機器 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4938238B2 (ja) | 2012-05-23 |
| CN1819251A (zh) | 2006-08-16 |
| US20060151812A1 (en) | 2006-07-13 |
| CN100463202C (zh) | 2009-02-18 |
| US7786515B2 (en) | 2010-08-31 |
| KR20060081357A (ko) | 2006-07-12 |
| KR101217364B1 (ko) | 2012-12-31 |
| US20070281382A1 (en) | 2007-12-06 |
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