JP2017028286A - 撮像装置および電子機器 - Google Patents
撮像装置および電子機器 Download PDFInfo
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- JP2017028286A JP2017028286A JP2016143162A JP2016143162A JP2017028286A JP 2017028286 A JP2017028286 A JP 2017028286A JP 2016143162 A JP2016143162 A JP 2016143162A JP 2016143162 A JP2016143162 A JP 2016143162A JP 2017028286 A JP2017028286 A JP 2017028286A
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Abstract
【解決手段】画素回路が有する増幅トランジスタのしきい値電圧のばらつきを補正することができる撮像装置であって、増幅トランジスタはチャネル形成領域を介して対向する二つのゲートを有し、一方のゲートにしきい値電圧を補正する電位を保持し、他方のゲートに撮像データに対応する電位を供給して動作させる。
【選択図】図1
Description
本実施の形態では、本発明の一態様である撮像装置について、図面を参照して説明する。
本実施の形態では、画素回路の駆動方法の一例について説明する。実施の形態1で説明した画素回路は、通常の撮像を行う第1の動作と、初期フレームの撮像データと現フレームの撮像データとの差分データを保持し、当該差分データに応じた信号を出力することができる第2の動作を行うことができる。第2の動作では、外部回路での比較処理などを行うことなく差分データを出力することができるため、防犯カメラなどを低消費電力化することができる。
本実施の形態では、本発明の一態様に用いることのできる酸化物半導体を有するトランジスタについて図面を用いて説明する。なお、本実施の形態における図面では、明瞭化のために一部の要素を拡大、縮小、または省略して図示している。
本実施の形態では、実施の形態3に示したトランジスタの構成要素について詳細を説明する。
以下では、本発明の一態様に用いることのできる酸化物半導体膜の構造について説明する。
以下では、酸化物半導体の構造について説明する。
まずは、CAAC−OSについて説明する。
次に、nc−OSについて説明する。
a−like OSは、nc−OSと非晶質酸化物半導体との間の構造を有する酸化物半導体である。
本実施の形態では、上述の実施の形態で説明したOSトランジスタを適用可能な回路構成の一例について、図51乃至図54を用いて説明する。
本実施の形態では、上述の実施の形態で説明したOSトランジスタを有する回路を、複数有する半導体装置の一例について、図55乃至58を用いて説明する。
本実施の形態では、イメージセンサチップを収めたパッケージおよびモジュールの一例について説明する。当該イメージセンサチップには、本発明の一態様の撮像装置の構成を用いることができる。
本発明の一態様に係る撮像装置、および当該撮像装置を含む半導体装置を用いることができる電子機器として、表示機器、パーソナルコンピュータ、記録媒体を備えた画像記憶装置または画像再生装置、携帯電話、携帯型を含むゲーム機、携帯データ端末、電子書籍端末、ビデオカメラ、デジタルスチルカメラ等のカメラ、ゴーグル型ディスプレイ(ヘッドマウントディスプレイ)、ナビゲーションシステム、音響再生装置(カーオーディオ、デジタルオーディオプレイヤー等)、複写機、ファクシミリ、プリンタ、プリンタ複合機、現金自動預け入れ払い機(ATM)、自動販売機などが挙げられる。これら電子機器の具体例を図61に示す。
21 画素アレイ
22 回路
23 回路
24 回路
25 回路
26a 回路
26b 回路
26c 回路
26d 回路
26e 回路
26f 回路
27 回路
30 入力端子
35 基板
41 トランジスタ
42 トランジスタ
43 トランジスタ
44 トランジスタ
45 トランジスタ
46 トランジスタ
47 トランジスタ
48 トランジスタ
61 配線
62 配線
63 配線
64 配線
65 配線
66 配線
67 配線
71 配線
71a 導電層
71b 導電層
72 配線
73 配線
74 配線
75 配線
76 配線
80 絶縁層
81 導電体
82 絶縁層
82a 絶縁層
82b 絶縁層
83 絶縁層
88 配線
90 配線
101 トランジスタ
102 トランジスタ
103 トランジスタ
104 トランジスタ
105 トランジスタ
106 トランジスタ
107 トランジスタ
108 トランジスタ
109 トランジスタ
110 トランジスタ
111 トランジスタ
112 トランジスタ
113 トランジスタ
115 基板
120 絶縁層
130 酸化物半導体層
130a 酸化物半導体層
130b 酸化物半導体層
130c 酸化物半導体層
140 導電層
141 導電層
142 導電層
150 導電層
151 導電層
152 導電層
160 絶縁層
170 導電層
171 導電層
172 導電層
173 導電層
175 絶縁層
180 絶縁層
190 絶縁層
231 領域
232 領域
233 領域
331 領域
332 領域
333 領域
334 領域
335 領域
561 光電変換層
562 透光性導電層
563 半導体層
564 半導体層
565 半導体層
566 電極
566a 導電層
566b 導電層
567 隔壁
568 正孔注入阻止層
569 電子注入阻止層
600 シリコン基板
610 トランジスタ
620 トランジスタ
650 活性層
660 シリコン基板
700 インバータ
710 OSトランジスタ
720 OSトランジスタ
731 信号波形
732 信号波形
740 破線
741 実線
750 OSトランジスタ
760 CMOSインバータ
810 パッケージ基板
811 パッケージ基板
820 カバーガラス
821 レンズカバー
830 接着剤
835 レンズ
840 バンプ
841 ランド
850 イメージセンサチップ
851 イメージセンサチップ
860 電極パッド
861 電極パッド
870 ワイヤ
871 ワイヤ
880 スルーホール
885 ランド
890 ICチップ
901 筐体
902 筐体
903 表示部
904 表示部
905 マイク
906 スピーカー
907 操作キー
908 スタイラス
909 カメラ
911 筐体
912 表示部
919 カメラ
931 筐体
932 表示部
933 リストバンド
935 ボタン
936 竜頭
939 カメラ
951 筐体
952 レンズ
953 支持部
961 筐体
962 シャッターボタン
963 マイク
965 レンズ
967 発光部
971 筐体
972 筐体
973 表示部
974 操作キー
975 レンズ
976 接続部
1100 層
1200 層
1400 層
1500 回折格子
1600 層
1900 半導体装置
1901 電源回路
1902 回路
1903 電圧生成回路
1903A 電圧生成回路
1903B 電圧生成回路
1903C 電圧生成回路
1904 回路
1905 電圧生成回路
1906 回路
1911 トランジスタ
1912 トランジスタ
1912A トランジスタ
1912B トランジスタ
1921 制御回路
1922 トランジスタ
2500 絶縁層
2510 遮光層
2520 有機樹脂層
2530 カラーフィルタ
2530a カラーフィルタ
2530b カラーフィルタ
2530c カラーフィルタ
2540 マイクロレンズアレイ
2550 光学変換層
2560 絶縁層
Claims (7)
- 光電変換素子と、第1のトランジスタと、第2のトランジスタと、第3のトランジスタと、第4のトランジスタと、第5のトランジスタと、第6のトランジスタと、第7のトランジスタと、第1の容量素子と、第2の容量素子と、を有し、
前記第4のトランジスタは第1のゲートおよび第2のゲートを有し、
前記第2のゲートはチャネル形成領域を介して前記第1のゲートに対向して設けられ、
前記光電変換素子の一方の端子は前記第1のトランジスタのソースまたはドレインの一方と電気的に接続され、
前記第1のトランジスタのソースまたはドレインの他方は前記第2のトランジスタのソースまたはドレインの一方と電気的に接続され、
前記第1のトランジスタのソースまたはドレインの他方は前記第1の容量素子の一方の端子と電気的に接続され、
前記第1の容量素子の他方の端子は前記第3のトランジスタのソースまたはドレインの一方と電気的に接続され、
前記第1の容量素子の他方の端子は前記第4のトランジスタの前記第1のゲートと電気的に接続され、
前記第4のトランジスタのソースまたはドレインの一方は前記第5のトランジスタのソースまたはドレインの一方と電気的に接続され、
前記第4のトランジスタのソースまたはドレインの一方は前記第6のトランジスタのソースまたはドレインの一方と電気的に接続され、
前記第4のトランジスタのソースまたはドレインの他方は前記第7のトランジスタのソースまたはドレインの一方と電気的に接続され、
前記第6のトランジスタのソースまたはドレインの他方は前記第2の容量素子の一方の端子と電気的に接続され、
前記第6のトランジスタのソースまたはドレインの他方は前記第4のトランジスタの前記第2のゲートと電気的に接続され、
前記第2の容量素子の他方の端子は前記第4のトランジスタのソースまたはドレインの他方と電気的に接続されていることを特徴とする撮像装置。 - 請求項1において、
第3の容量素子を有し、前記第3の容量素子の一方の端子は、前記第1の容量素子の他方の端子と電気的に接続されていることを特徴とする撮像装置。 - 請求項1または2において、
第4の容量素子を有し、前記第4の容量素子の一方の端子は、前記第2の容量素子の一方の端子と電気的に接続されていることを特徴とする撮像装置。 - 請求項1乃至3のいずれか一項において、
前記第1乃至第7のトランジスタは活性層に酸化物半導体を有し、当該酸化物半導体は、Inと、Znと、M(MはAl、Ti、Ga、Sn、Y、Zr、La、Ce、NdまたはHf)と、を有することを特徴とする撮像装置。 - 請求項1乃至4のいずれか一項において、
前記光電変換素子は、光電変換層にセレンまたはセレンを含む化合物を有することを特徴とする撮像装置。 - 請求項1乃至5のいずれか一項に記載の撮像装置と、
レンズと、を有することを特徴とするモジュール。 - 請求項1乃至5のいずれか一項に記載の撮像装置と、
表示装置と、を有することを特徴とする電子機器。
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US10163948B2 (en) | 2018-12-25 |
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