JP6951842B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP6951842B2 JP6951842B2 JP2017001698A JP2017001698A JP6951842B2 JP 6951842 B2 JP6951842 B2 JP 6951842B2 JP 2017001698 A JP2017001698 A JP 2017001698A JP 2017001698 A JP2017001698 A JP 2017001698A JP 6951842 B2 JP6951842 B2 JP 6951842B2
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- circuit
- signal
- potential
- analog signal
- transistor
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- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
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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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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
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Description
図1に、本発明の一態様に係る半導体装置の構成を一例として示す。図1に示す半導体装置10は、サンプルホールド回路11と、変換回路12と、を有する。サンプルホールド回路11は、アナログ信号(SigA)の電位を取得し、保持する機能を有する。
次いで、変換回路12のより具体的な構成の一例について、図4を用いて説明する。図4に、サンプルホールド回路11と、変換回路12の構成の一例を示す。図4に示すサンプルホールド回路11は、図1に示すサンプルホールド回路11と同様の構成を有している。
次いで、本発明の一態様に係る半導体装置10の、別の構成例を図6(A)に示す。図6(A)に示す半導体装置10は、図2(A)に示す半導体装置10と同様に、サンプルホールド回路11と変換回路12とを複数有することで、パイプライン型のADCとしての機能を有する。さらに、図6(A)に示す半導体装置10は、図2(A)に示す半導体装置10に加えて、コントローラ20を有する。
次いで、アナログデジタル変換回路(sub−ADC)16の、具体的な構成例について、図9を用いて説明する。
次いで、トランジスタ13tに用いられる、トランジスタの構成例について説明する。
本実施の形態では、酸化物半導体について説明する。酸化物半導体は、単結晶酸化物半導体と、それ以外の非単結晶酸化物半導体と、に分けられる。非単結晶酸化物半導体としては、CAAC−OS(c−axis−aligned crystalline oxide semiconductor)、多結晶酸化物半導体、nc−OS(nanocrystalline oxide semiconductor)、擬似非晶質酸化物半導体(a−like OS:amorphous−like oxide semiconductor)および非晶質酸化物半導体などがある。
次いで、半導体装置10の一例として、センサユニットが組み込まれた無線タグについて説明する。図16は、無線タグの一例を示すブロック図である。なお、無線タグは、RFIDタグ、RFID、RFタグ、IDタグ、ICタグ、ICチップ、電子タグ、無線ICタグ等と呼ばれている。
次いで、図17に、本発明の一態様にかかる半導体装置10の一例に相当する、固体撮像装置300の、具体的な構成例をブロック図で示す。なお、図17に示すブロック図では、固体撮像装置300内の回路を機能ごとに分類し、互いに独立したブロックとして示しているが、実際の回路は機能ごとに完全に切り分けることが難しく、一つの回路が複数の機能に係わることもあり得る。
本発明の一態様に係る半導体装置は、表示装置、ノート型パーソナルコンピュータ、記録媒体を備えた画像再生装置(代表的にはDVD:Digital Versatile Disc等の記録媒体を再生し、その画像を表示しうるディスプレイを有する装置)に用いることができる。その他に、本発明の一態様に係る半導体装置を用いることができる電子機器として、携帯電話、携帯型ゲーム機、携帯情報端末、電子書籍、ビデオカメラ、デジタルスチルカメラなどのカメラ、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、プリンター、プリンター複合機、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18に示す。
11 サンプルホールド回路
12 変換回路
13 スイッチ
13t トランジスタ
14 容量素子
15 デジタル回路
16 sub−ADC
17 sub−DAC
18 減算回路
19 アンプ
20 コントローラ
21 遅延補正回路
22 演算回路
23 出力回路
24 ラッチ
30a コンパレータ
30b コンパレータ
31 エンコーダ
32 セレクタ
33 セレクタ
35 トランジスタ
36 トランジスタ
37 トランジスタ
38 トランジスタ
39 インバータ
40 バッファ
42 トランジスタ
43 インバータ
44 インバータ
47 インバータ
48 エンコーダ
49 インバータ
200 無線タグ
210 入力/出力部
211 整流回路
212 リミッタ回路
213 復調回路
214 変調回路
220 アナログ部
221 電源回路
222 検出回路
223 リセット回路
224 バッファ回路
225 発振回路
226 フラグ保持回路
227 センサユニット
230 ロジック部
240 メモリ部
250 アンテナ
251 電位生成回路
252 センサ回路
253 AMP
254 ADC
260 回路部
300 固体撮像装置
311 センサ回路
312 中央演算処理装置
313 制御回路
314 画素
320 フレームメモリ
321 アナログデジタル変換回路
322 ドライバ
323 ドライバ
324 パネル
325 電源装置
326 タイミングコントローラ
501 トランジスタ
504 駆動回路
511 絶縁層
512 絶縁層
512e Ec
513 絶縁層
513e Ec
514 絶縁層
515 絶縁層
516 絶縁層
517 絶縁層
518 絶縁層
519 絶縁層
520 絶縁層
521 金属酸化物膜
521e Ec
522 金属酸化物膜
522e Ec
523 金属酸化物膜
524 金属酸化物膜
524e Ec
527e Et
530 酸化物層
550 導電層
551 導電層
552 導電層
553 導電層
560 単結晶シリコンウエハ
561 CMOS層
562 トランジスタ層
5001 筐体
5002 表示部
5003 支持台
5101 筐体
5102 表示部
5103 操作キー
5301 筐体
5302 筐体
5303 表示部
5304 表示部
5305 マイクロホン
5306 スピーカー
5307 操作キー
5308 スタイラス
5601 筐体
5602 表示部
5701 筐体
5702 表示部
5901 筐体
5902 表示部
5903 カメラ
5904 スピーカー
5905 ボタン
5906 外部接続部
5907 マイク
Claims (2)
- 第1のサンプルホールド回路と、
第2のサンプルホールド回路と、
第1の変換回路と、
第2の変換回路と、
デジタル回路と、を有し、
前記第1のサンプルホールド回路は、第1のスイッチと、前記第1のスイッチを介して第1の情報を有する第1のアナログ信号の電位が与えられる第1の容量素子と、を有し、
前記第1の変換回路は、前記第1のサンプルホールド回路の出力端子から出力された前記第1のアナログ信号に応じた最上位ビットの第1のデジタル信号を生成する機能と、前記第1のデジタル信号を第2のアナログ信号に変換する機能と、前記第1のアナログ信号の電位から前記第2のアナログ信号の電位を差し引くことで第3のアナログ信号を生成する機能と、を有し、
前記第2のサンプルホールド回路は、第2のスイッチと、前記第2のスイッチを介して前記第3のアナログ信号の電位が与えられる第2の容量素子と、を有し、
前記第2の変換回路は、前記第2のサンプルホールド回路の出力端子から出力された前記第3のアナログ信号に応じた最上位ビットの第2のデジタル信号を生成する機能と、前記第2のデジタル信号を第4のアナログ信号に変換する機能と、前記第3のアナログ信号の電位から前記第4のアナログ信号の電位を差し引くことで第5のアナログ信号を生成する機能と、を有し、
前記デジタル回路は、前記第1のデジタル信号と、前記第2のデジタル信号と、を用いて、前記第1のアナログ信号に対応する第3のデジタル信号を生成する機能を有し、
前記第1のスイッチが有するトランジスタは、チャネル形成領域に酸化物半導体を有し、
前記第2のスイッチが有するトランジスタは、チャネル形成領域に酸化物半導体を有する半導体装置。 - 請求項1において、
前記第1のサンプルホールド回路は、前記第1の容量素子の電位が確定した後、前記第1のスイッチが有するトランジスタをオフにする機能と、前記第2の変換回路において前記第2のデジタル信号が生成される間に、第2の情報を有する第6のアナログ信号をサンプリングする機能とを有し、
前記第2のサンプルホールド回路は、前記第2の容量素子の電位が確定した後、前記第2のスイッチが有するトランジスタをオフにする機能を有する半導体装置。
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2016
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US10334196B2 (en) | 2019-06-25 |
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