JP4350768B2 - 光電変換装置及び撮像装置 - Google Patents
光電変換装置及び撮像装置 Download PDFInfo
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- H04N25/778—Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components comprising amplifiers shared between a plurality of pixels, i.e. at least one part of the amplifier must be on the sensor array itself
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- H04N25/772—Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components comprising A/D, V/T, V/F, I/T or I/F converters
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- H04N3/15—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by means of electrically scanned solid-state devices for picture signal generation
- H04N3/1506—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by means of electrically scanned solid-state devices for picture signal generation with addressing of the image-sensor elements
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Description
本発明の他の側面は、複数の光電変換素子と、増幅トランジスタと、各光電変換素子の電荷をそれぞれ前記増幅トランジスタのゲート電極に転送する転送トランジスタと、前記増幅トランジスタのゲート電極の電位をリセットするリセットトランジスタと、をそれぞれ含む複数の単位セルがウェルに配列された光電変換装置に関する。前記光電変換装置は、前記ウェルに電圧を供給するためのウェル電圧供給線と、前記ウェル電圧供給線と前記ウェルとを接続するウェルコンタクト部と、前記複数の転送トランジスタを制御するための複数の転送制御信号線と、前記リセットトランジスタを制御するリセット信号線とを含み、前記ウェル電圧供給線と前記転送制御信号線と前記リセット信号線とが平行に配されており、前記光電変換素子を基準として、前記転送制御信号線と前記リセット信号線、あるいは前記転送制御信号線と前記ウェル電圧供給線とが対称に配置されている。
11 画素アレイ部
12 垂直走査回路
13 CDS回路
14 水平走査回路
15 AGC回路
16 A/D変換回路
17 タイミングジェネレータ
18 基板
20 単位セル
21a〜21d 光電変換素子
22a〜22d 転送トランジスタ
23 増幅トランジスタ
24 リセットトランジスタ
25 FD(フローティングディフュージョン)
30a〜30d 転送制御信号線
31 リセット信号線
32 電源線
33 信号出力線
34 定電流トランジスタ
35 バイアス電源
41a〜41d、44、46 ゲート電極
42a〜42d、43a〜43d、43e、45a、45b、47 活性領域
48 ウェルコンタクト領域(P+領域)
50a〜50d、50e、51、51a、51b、52a〜52d、53、54、54a、54b、55
56 ウェルコンタクト部
57 ウェル電圧供給線
61 N型基板
62 Pウェル
63 N型不純物領域
64、67 P+領域
65 N型領域
66 素子分離領域
Claims (10)
- 複数の光電変換素子と、増幅トランジスタと、前記複数の光電変換素子と前記増幅トランジスタのゲート電極との間に配置された複数の転送トランジスタとをそれぞれ含む複数の単位セルがウェルに配列された光電変換装置であって、各単位セルが、
前記ウェルに電圧を供給するためのウェル電圧供給線と、
前記ウェル電圧供給線と前記ウェルとを接続するウェルコンタクト部と、
前記複数の転送トランジスタを制御するための複数の転送制御信号線とを含み、
各単位セルの領域内において、前記複数の転送制御信号線が前記ウェル電圧供給線を基準として対称に配置されている、
ことを特徴とする光電変換装置。 - 前記ウェル電圧供給線及び前記複数の転送制御信号線が平行に配置され、
各単位セルの領域内において、前記ウェル電圧供給線及び前記複数の転送制御信号線に平行でかつ前記ウェルコンタクト部を通る仮想線が前記増幅トランジスタのゲート電極を通るように前記増幅トランジスタが配置されている、
ことを特徴とする請求項1に記載の光電変換装置。 - 前記複数の光電変換素子は、少なくとも第1光電変換素子及び第2光電変換素子を含み、各単位セルの領域内において、前記第1光電変換素子及び前記第2光電変換素子の間には素子分離領域が配置されず、かつ、前記第1光電変換素子及び前記第2光電変換素子が素子分離領域の間の領域に配置されている、
ことを特徴とする請求項1又は2に記載の光電変換装置。 - 各単位セルが、前記ゲート電極の電位をリセットするリセットトランジスタと、前記リセットトランジスタを制御するリセット信号線とを更に含み、
前記ウェル電圧供給線、前記複数の転送制御信号線及び前記リセット信号線が互いに平行に配置され、
隣接する2つの前記リセット信号線が、当該2つのリセット信号線の間に位置する前記ウェル電圧供給線を基準として対称に配置されている、
ことを特徴とする請求項1乃至3のいずれか1項に記載の光電変換装置。 - 前記リセットトランジスタが各単位セルの領域の端部に配置されている、
ことを特徴とする請求項4に記載の光電変換装置。 - 各単位セルの領域内において、前記複数の光電変換素子が前記ウェル電圧供給線を基準として対称に配置されている、
ことを特徴とする請求項1乃至5のいずれか1項に記載の光電変換装置。 - 各単位セルが4個の前記光電変換素子を含むことを特徴とする請求項1乃至6のいずれか1項に記載の光電変換装置。
- 請求項1乃至7のいずれか1項に記載の光電変換装置と、
前記光電変換装置から提供される信号を処理する処理回路と、
を備えることを特徴とする撮像装置。 - 複数の光電変換素子と、増幅トランジスタと、各光電変換素子の電荷をそれぞれ前記増幅トランジスタのゲート電極に転送する転送トランジスタと、前記増幅トランジスタのゲート電極の電位をリセットするリセットトランジスタと、をそれぞれ含む複数の単位セルがウェルに配列された光電変換装置であって、
前記ウェルに電圧を供給するためのウェル電圧供給線と、
前記ウェル電圧供給線と前記ウェルとを接続するウェルコンタクト部と、
前記複数の転送トランジスタを制御するための複数の転送制御信号線と、
前記リセットトランジスタを制御するリセット信号線と、を含み、
前記ウェル電圧供給線と前記転送制御信号線と前記リセット信号線とが平行に配されており、
前記光電変換素子を基準として、前記転送制御信号線と前記リセット信号線、あるいは前記転送制御信号線と前記ウェル電圧供給線とが対称に配置されていることを特徴とする光電変換装置。 - 1つの前記光電変換素子とそれに接続された1つの前記転送トランジスタを含む部分が他の1つの前記光電変換素子とそれに接続された他の1つの転送トランジスタを含む部分とがミラー対称であることを特徴とする請求項9に記載の光電変換装置。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
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JP2007107625A JP4350768B2 (ja) | 2007-04-16 | 2007-04-16 | 光電変換装置及び撮像装置 |
US12/050,326 US7911521B2 (en) | 2007-04-16 | 2008-03-18 | Photoelectric conversion device and image pickup apparatus with symmetry about a voltage supply line |
CN200810092645A CN100595929C (zh) | 2007-04-16 | 2008-04-16 | 光电转换装置和图像拾取设备 |
US13/028,334 US8390713B2 (en) | 2007-04-16 | 2011-02-16 | Photoelectric conversion device and image-pickup apparatus |
US13/753,709 US8994862B2 (en) | 2007-04-16 | 2013-01-30 | Photoelectric conversion device and image-pickup apparatus |
US14/615,965 US9445023B2 (en) | 2007-04-16 | 2015-02-06 | Photoelectric conversion device and image-pickup apparatus |
US15/234,295 US9762837B2 (en) | 2007-04-16 | 2016-08-11 | Photoelectric conversion device and image-pickup apparatus |
US15/649,915 US10404932B2 (en) | 2007-04-16 | 2017-07-14 | Photoelectric conversion device and image-pickup apparatus |
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JP2007107625A JP4350768B2 (ja) | 2007-04-16 | 2007-04-16 | 光電変換装置及び撮像装置 |
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JP4350768B2 true JP4350768B2 (ja) | 2009-10-21 |
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US10404932B2 (en) | 2019-09-03 |
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