JP6279332B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP6279332B2 JP6279332B2 JP2014009003A JP2014009003A JP6279332B2 JP 6279332 B2 JP6279332 B2 JP 6279332B2 JP 2014009003 A JP2014009003 A JP 2014009003A JP 2014009003 A JP2014009003 A JP 2014009003A JP 6279332 B2 JP6279332 B2 JP 6279332B2
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- 239000004065 semiconductor Substances 0.000 title claims description 133
- 238000002955 isolation Methods 0.000 claims description 90
- 238000009792 diffusion process Methods 0.000 claims description 73
- 230000003321 amplification Effects 0.000 claims description 60
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 60
- 238000001514 detection method Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 80
- 239000000758 substrate Substances 0.000 description 43
- 230000002093 peripheral effect Effects 0.000 description 27
- 239000013256 coordination polymer Substances 0.000 description 23
- 230000004048 modification Effects 0.000 description 18
- 238000012986 modification Methods 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 16
- 239000011229 interlayer Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 12
- 238000003384 imaging method Methods 0.000 description 12
- 239000012535 impurity Substances 0.000 description 10
- 230000005669 field effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 229910021332 silicide Inorganic materials 0.000 description 8
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 8
- 238000005530 etching Methods 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 229910052814 silicon oxide Inorganic materials 0.000 description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- 238000005468 ion implantation Methods 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 229910052785 arsenic Inorganic materials 0.000 description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 229910019001 CoSi Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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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
以下に、図1〜図6を用いて本実施の形態の半導体装置を説明する。図1は本実施の形態の半導体装置の画素の平面レイアウトであり、図2は本実施の形態の半導体装置の画素の等価回路図であり、図3は本実施の形態の半導体装置の画素の周辺トランジスタの一部を拡大して示す平面レイアウトである。図4は図3のA−A線における断面図であり、図5は図3のB−B線における断面図であり、図6は図3のC−C線における断面図である。
本実施の形態では、増幅用トランジスタのゲート電極の本数を複数本とすることで、実効的なゲート幅を大きくした場合の半導体装置について、図10〜図12を用いて説明する。なお、図10〜図12では、ゲート電極のゲート幅方向における両端に幅広部を形成する構造、つまり前記実施の形態1の変形例(図7参照)と似た構造について説明するが、図13を用いて後述するように、幅広部がゲート電極のゲート幅方向における一方の端部にのみ形成されている場合であっても、1/fノイズを低減する効果を得ることができる。図10は本実施の形態の半導体装置を示す平面レイアウトである。図11は、図10のD−D線における断面図である。図12は、図10のE−E線における断面図である。
本実施の形態では、増幅用トランジスタにおいて、素子分離領域および活性領域の境界近傍の活性領域内に暗電流が流れることを防ぐために、当該境界近傍の活性領域内に、増幅用トランジスタのチャネル領域と同じ導電型の不純物を導入した構成について、図15〜図17を用いて説明する。図15は図3と対応する箇所における、本実施の形態の半導体装置の平面レイアウトである。図16は図15のF−F線における断面図である。図17は図15のG−G線における断面図である。
AT1、AT2 活性領域
CL 層間絶縁膜
CP コンタクトプラグ
DF 拡散層
DL 拡散層
EX エクステンション領域
G1〜G7 ゲート電極
GF ゲート絶縁膜
GND 接地部
GP ゲート電極部(ゲート電極)
GW 幅広部(ゲート電極)
GWG ゲート配線
IL 層間絶縁膜
M1 配線
PD1、PD2 フォトダイオード
PE 画素
PW p型ウエル
RST リセット用トランジスタ
S1 シリサイド層
SB 半導体基板
SEL 選択用トランジスタ
SW サイドウォール
TX1、TX2 転送用トランジスタ
Claims (4)
- 入射光の光量に応じた信号電荷を生成する光電変換素子と、
前記信号電荷を電荷検出部に転送する転送用トランジスタと、
前記電荷検出部の電位変動に対応する電気信号を出力する増幅用トランジスタと、
前記電荷検出部の電位を所定の値にリセットするリセット用トランジスタと、
前記増幅用トランジスタが出力する前記電気信号を外部に出力する選択用トランジスタと、
を有する画素を備えた半導体装置であって、
素子分離領域により囲まれた活性領域上には、前記活性領域上を横断する前記増幅用トランジスタの第1ゲート電極と、前記選択用トランジスタの第2ゲート電極とが形成されており、
前記活性領域の直上において、前記第1ゲート電極のゲート幅方向の一方の端部である第1部分のゲート長は、前記第1ゲート電極の前記ゲート幅方向の中心部である第2部分のゲート長よりも大きく、
前記第1ゲート電極のゲート長方向において、前記第1部分は、前記第2部分の両側の側面に対して外側に延在しており、
前記第1ゲート電極の直下において、前記素子分離領域に隣接する前記活性領域内に、前記増幅用トランジスタのチャネル領域と同一の導電型を有する拡散層が形成されており、前記第2ゲート電極の直下において、前記素子分離領域に隣接する前記活性領域内に、前記選択用トランジスタのチャネル領域と同一の導電型を有する前記拡散層が形成されており、前記リセット用トランジスタ、前記転送用トランジスタおよび前記光電変換素子は、前記拡散層を含んでいない、半導体装置。 - 請求項1記載の半導体装置において、
前記第1ゲート電極は、前記ゲート幅方向に並ぶ複数の第3ゲート電極を並列に接続した構造を有する、半導体装置。 - 請求項1記載の半導体装置において、
前記活性領域の直上において、前記第1ゲート電極の前記ゲート幅方向の両方の端部のうち、前記第1部分と反対側の前記端部である第3部分のゲート長は、前記第2部分のゲート長よりも大きい、半導体装置。 - 請求項1記載の半導体装置において、
前記第1ゲート電極のゲート幅方向において、前記増幅用トランジスタは、複数のフォトダイオードに挟まれて配置されている、半導体装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2014009003A JP6279332B2 (ja) | 2014-01-21 | 2014-01-21 | 半導体装置 |
US14/537,633 US9245921B2 (en) | 2014-01-21 | 2014-11-10 | Semiconductor device including image pick up device |
CN201410844246.7A CN104795415A (zh) | 2014-01-21 | 2014-12-30 | 半导体器件及其制造方法 |
US14/970,345 US20160099286A1 (en) | 2014-01-21 | 2015-12-15 | Semiconductor device including image pick up device |
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JP2014009003A JP6279332B2 (ja) | 2014-01-21 | 2014-01-21 | 半導体装置 |
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JP2015138851A JP2015138851A (ja) | 2015-07-30 |
JP6279332B2 true JP6279332B2 (ja) | 2018-02-14 |
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JP2014009003A Expired - Fee Related JP6279332B2 (ja) | 2014-01-21 | 2014-01-21 | 半導体装置 |
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US (2) | US9245921B2 (ja) |
JP (1) | JP6279332B2 (ja) |
CN (1) | CN104795415A (ja) |
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2017069231A (ja) | 2015-09-28 | 2017-04-06 | ソニー株式会社 | Mos型電界効果トランジスタ、半導体集積回路、固体撮像素子、及び、電子機器 |
US20170110589A1 (en) * | 2015-10-14 | 2017-04-20 | United Microelectronics Corp. | Semiconductor structure |
JP2017152669A (ja) * | 2016-02-25 | 2017-08-31 | パナソニックIpマネジメント株式会社 | 撮像装置 |
KR102546550B1 (ko) * | 2016-06-24 | 2023-06-23 | 에스케이하이닉스 주식회사 | 딥 트렌치들 내의 전달 게이트들을 갖는 이미지 센서 |
KR102632460B1 (ko) * | 2016-12-28 | 2024-01-31 | 삼성전자주식회사 | 반도체 장치 및 그 제조 방법 |
WO2019130963A1 (ja) * | 2017-12-26 | 2019-07-04 | ソニーセミコンダクタソリューションズ株式会社 | 固体撮像素子、コンパレータ、及び、電子機器 |
CN112382639B (zh) * | 2020-10-16 | 2022-09-16 | 复旦大学 | 基于绝缘层上硅衬底的可调性能光电传感器及其制备方法 |
JP7421532B2 (ja) * | 2021-11-12 | 2024-01-24 | キヤノン株式会社 | 光電変換装置及び発光装置 |
WO2024106191A1 (ja) * | 2022-11-15 | 2024-05-23 | ソニーセミコンダクタソリューションズ株式会社 | 固体撮像素子および製造方法、並びに電子機器 |
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JPH08139851A (ja) * | 1994-11-09 | 1996-05-31 | Matsushita Electric Ind Co Ltd | イメージセンサ |
JP4142228B2 (ja) * | 2000-02-01 | 2008-09-03 | 株式会社ルネサステクノロジ | 半導体集積回路装置 |
KR100603247B1 (ko) * | 2003-12-31 | 2006-07-20 | 동부일렉트로닉스 주식회사 | 시모스 이미지 센서 및 그 제조방법 |
JP4969771B2 (ja) * | 2004-07-12 | 2012-07-04 | ソニー株式会社 | 固体撮像装置及びそのキャパシタ調整方法 |
JP2006237462A (ja) * | 2005-02-28 | 2006-09-07 | Matsushita Electric Ind Co Ltd | 固体撮像装置 |
JP5092378B2 (ja) * | 2006-12-07 | 2012-12-05 | 株式会社ニコン | 固体撮像装置 |
JP5029624B2 (ja) * | 2009-01-15 | 2012-09-19 | ソニー株式会社 | 固体撮像装置及び電子機器 |
JP2010206173A (ja) * | 2009-02-06 | 2010-09-16 | Canon Inc | 光電変換装置およびカメラ |
JP5537523B2 (ja) * | 2011-09-22 | 2014-07-02 | 株式会社東芝 | 固体撮像装置 |
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US20150206920A1 (en) | 2015-07-23 |
US9245921B2 (en) | 2016-01-26 |
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