JP2013243364A - 半導体装置およびその製造方法 - Google Patents
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
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- 238000010586 diagram Methods 0.000 description 7
- 239000010408 film Substances 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 5
- 239000006117 anti-reflective coating Substances 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 4
- 229920002120 photoresistant polymer Polymers 0.000 description 3
- 239000005368 silicate glass Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
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- 238000005229 chemical vapour deposition Methods 0.000 description 2
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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
- H01L27/1462—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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- 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
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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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Abstract
【解決手段】半導体装置は、フォトダイオードが組み込まれた画素領域を有する基板、基板の、フォトダイオードの受光側に設けられ、且つ、基板に垂直な方向に画素領域と整列して並べられるキャビティが区画される壁を有するグリッド、および、グリッドの壁間のキャビティ中に設けられるカラーフィルターを含む。
【選択図】図3
Description
12 基板
12A 前面
12B 背面
14 グリッド
16 カラーフィルター
18 プラズマ強化酸化層(PEOx)
20 反射防止膜(ARC)
22 裏面照射(BSI)膜
24 第1の誘電体層
26 シャロートレンチアイソレーション(STI)領域
28 炭化ケイ素層
28A 上側炭化ケイ素層
28B 下側炭化ケイ素層
30 メタライズ層
32 第2の誘電体層
34 上側金属
36 非ドープの珪酸ガラス(USG)層
38 金属
40 グリッドの壁
42 キャビティ
44 画素領域
46 フォトダイオード
48 カラーフィルターの上表面
50 グリッドの壁の上表面
52 方法
54 グリッド層
56 フォトレジスト
58 マイクロレンズ
60 アレイ
62 黒レベル補正(BLC)コンポーネンツ
64 ボンディングパッド
Claims (10)
- フォトダイオードが組み込まれた画素領域を有する基板と、
前記基板の前記フォトダイオードの受光側に設けられ、キャビティが区画される壁を有し、前記キャビティが前記基板に垂直な方向に前記画素領域と整列して並べられるグリッドと、
前記グリッドの前記壁間の前記キャビティ中に設けられるカラーフィルター
とを含むことを特徴とする半導体装置。 - 前記グリッドは、金属または低屈折率材料で形成されていることを特徴とする請求項1記載の半導体装置。
- 前記グリッドが、タングステン、アルミニウムおよび銅のいずれか一つからなる金属、または、低屈折率材料の酸化物で形成されていることを特徴とする請求項2記載の半導体装置。
- 前記グリッドは、裏面照射膜上に設けられることを特徴とする請求項1記載の半導体装置。
- マイクロレンズが、前記カラーフィルターの上表面および前記カラーフィルターに隣接する前記グリッドの前記壁の上表面に設けられることを特徴とする請求項1記載の半導体装置。
- フォトダイオードがそれぞれ組み込まれた複数の画素領域を有する基板と、
前記基板の前記フォトダイオードの受光側に設けられ、複数のキャビティが区画される壁を有し、前記複数のキャビティのそれぞれが、前記基板に垂直な方向に前記複数の画素領域のひとつと整列して並べられるグリッドと、
前記複数のキャビティのそれぞれに設けられるカラーフィルターと、
各カラーフィルター上に設けられるマイクロレンズ
とを含むことを特徴とする半導体装置。 - 前記グリッドは、金属または低屈折率誘電材料により形成されることを特徴とする請求項6記載の半導体装置。
- 前記カラーフィルターの上表面は、前記カラーフィルターに隣接する前記グリッドの前記壁の上表面と共平面であることを特徴とする請求項6記載の半導体装置。
- 半導体装置の製造方法であって、
半導体基板の画素領域中に、フォトダイオードを形成する工程と、
グリッド層を前記基板上の全面に堆積する工程と、
前記グリッド層をパターン化して、前記半導体基板と垂直な方向に、画素領域と整列して設けられるキャビティが区画される壁を有するグリッドを形成する工程と、
前記キャビティにカラーフィルターを充填する工程
とを含むことを特徴とする方法。 - さらに、前記カラーフィルターの上表面または前記カラーフィルターに隣接する前記グリッドの前記壁の上表面上に、マイクロレンズを堆積する工程を含むことを特徴とする請求項9記載の方法。
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US13/476,785 | 2012-05-21 | ||
US13/476,785 US9455288B2 (en) | 2012-05-21 | 2012-05-21 | Image sensor structure to reduce cross-talk and improve quantum efficiency |
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JP2016185520A Division JP6325620B2 (ja) | 2012-05-21 | 2016-09-23 | 半導体装置およびその製造方法 |
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JP2016185520A Active JP6325620B2 (ja) | 2012-05-21 | 2016-09-23 | 半導体装置およびその製造方法 |
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US (1) | US9455288B2 (ja) |
JP (2) | JP2013243364A (ja) |
CN (2) | CN103426890A (ja) |
TW (1) | TWI520317B (ja) |
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CN107482028B (zh) | 2020-10-30 |
JP2016225660A (ja) | 2016-12-28 |
TW201349471A (zh) | 2013-12-01 |
CN107482028A (zh) | 2017-12-15 |
US9455288B2 (en) | 2016-09-27 |
US20130307104A1 (en) | 2013-11-21 |
CN103426890A (zh) | 2013-12-04 |
TWI520317B (zh) | 2016-02-01 |
JP6325620B2 (ja) | 2018-05-16 |
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