JP2014142986A - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP2014142986A JP2014142986A JP2013264732A JP2013264732A JP2014142986A JP 2014142986 A JP2014142986 A JP 2014142986A JP 2013264732 A JP2013264732 A JP 2013264732A JP 2013264732 A JP2013264732 A JP 2013264732A JP 2014142986 A JP2014142986 A JP 2014142986A
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- oxide
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- G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
- G11C11/40—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
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- G11C11/5621—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using storage elements with more than two stable states represented by steps, e.g. of voltage, current, phase, frequency using charge storage in a floating gate
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Abstract
【解決手段】二値のデータ又は多値のデータを記憶するメモリセルと、メモリセルに記憶されたデータを外部に読み出すための読み出し回路と、を有し、読み出し回路は、二値のデータを読み出す第1の読み出し回路と、多値のデータを読み出す第2の読み出し回路と、を有する構成とする。
【選択図】図1
Description
1.実施の形態1(本発明の一態様に関する基本構成について)
2.実施の形態2(読み出し回路の構成例について)
3.実施の形態3(書き込み回路の構成例について)
4.実施の形態4(メモリセルの構成例について)
5.実施の形態5(電圧生成回路の構成例について)
6.実施の形態6(半導体装置の各構成における変形例について)
7.実施の形態7(半導体装置の応用例について)
8.実施の形態8(半導体装置を構成する素子について)
9.実施の形態9(半導体装置の電子部品及び該電子部品を具備する電子機器の構成例)
本実施の形態では、開示する発明の一態様に係る半導体装置の基本構成について、図1を参照して説明する。
本実施の形態では、実施の形態1で説明した読み出し回路の構成例について、図2を参照して説明する。
本実施の形態では、実施の形態1で説明した書き込み回路の構成例について、図3を参照して説明する。
本実施の形態では、実施の形態1で説明したメモリセルの構成例について、図4及び図5を参照して説明する。
本実施の形態では、実施の形態1で説明した電圧生成回路の構成例について、図6及び図7を参照して説明する。
本実施の形態では、上記実施の形態1乃至5で説明した半導体装置の各構成における変形例について、図8乃至図15を参照して説明する。
まず、読み出し回路の変形例について、図8乃至図14を参照して説明する。
次いでメモリセルの変形例について、図15を参照して説明する。
本実施の形態では、上記実施の形態で説明した半導体装置の応用例について、図16乃至図18を参照して説明する。
本実施の形態では、開示する発明の一態様に係る半導体装置を構成する素子、具体的にはメモリセルが有するトランジスタ及び容量素子の構成及びその作製方法について、図19乃至図23、図25を参照して説明する。
図19は、半導体装置が有するメモリセルの構成の一例である。図19(A)には半導体装置が有するメモリセルの断面を、図19(B)には半導体装置が有するメモリセルの平面を、それぞれ示す。図19(A)において、A1−A2は、トランジスタのチャネル長方向に垂直な断面図であり、B1−B2は、トランジスタのチャネル長方向に平行な断面図である。図19に示す半導体装置は、下部に第1の半導体材料を用いたトランジスタ860を有し、上部に第2の半導体材料を用いたトランジスタ862を有する。また、図19に示す半導体装置は、トランジスタ860とトランジスタ862と容量素子864とを、一つずつ有する構成として示しているが、それぞれ複数有する構成も含む。
次に、上記半導体装置が有するメモリセルの作製方法の一例について説明する。以下では、はじめに下部のトランジスタ860の作製方法について図20及び図21を参照して説明し、その後、上部のトランジスタ862及び容量素子864の作製方法について図22及び図23を参照して説明する。
下部のトランジスタ860の作製方法について、図20及び図21を参照して説明する。
次に、上部のトランジスタ862及び容量素子864の作製方法について、図22及び図23を参照して説明する。
本実施の形態では、上述の実施の形態で説明した半導体装置を電子部品に適用する例、及び該電子部品を具備する電子機器に適用する例について、図31、図32を用いて説明する。
101 駆動回路
102 駆動回路
103 記憶回路
104 メモリセル
105 制御回路
106 電圧生成回路
107 読み出し回路
108 書き込み回路
109 負荷
110 読み出し切り換え回路
111 書き込み切り換え回路
112 読み出し切り換えスイッチ
113 読み出し回路
114 読み出し回路
115 読み出し回路
121 コンパレータ
122 コンパレータ
123 演算回路
124 スイッチ
125 コンパレータ
126 演算回路
127 参照電圧切り換え回路
128 コンパレータ
131 書き込み回路
132 書き込み回路
141 トランジスタ
142 トランジスタ
143 容量素子
144 記憶素子
145 基板
146 不純物領域
147 絶縁膜
148 ゲート電極
149 絶縁膜
150 ゲート電極
151 抵抗素子
152 バッファ回路
153 抵抗素子
154 バッファ回路
155 抵抗素子
156 バッファ回路
157 スイッチ
158 スイッチ
160 半導体回路
162 半導体回路
164 ソフトウェア記憶部
170 記憶装置
171 領域175 領域
180 記憶装置
181 領域
185 領域
700 電子部品
701 リード
702 プリント基板
800 基板
802 保護層
804 半導体領域
806 素子分離絶縁層
808 ゲート絶縁層
810 ゲート電極
816 チャネル形成領域
820 不純物領域
822 金属層
824 金属間化合物領域
826 電極
828 絶縁層
842a ドレイン電極
842b ドレイン電極
844 酸化物半導体層
844a 酸化物半導体層
844b 酸化物半導体層
844c 酸化物半導体層
846 ゲート絶縁層
848a ゲート電極
848b 導電層
850 絶縁層
852 絶縁層
853 開口
854 電極
856 配線
860 トランジスタ
862 トランジスタ
864 容量素子
901 筐体
902 筐体
903a 表示部
903b 表示部
904 選択ボタン
905 キーボード
910 電子書籍
911 筐体
912 筐体
913 表示部
914 表示部
915 軸部
916 電源
917 操作キー
918 スピーカー
920 テレビジョン装置
921 筐体
922 表示部
923 スタンド
924 リモコン操作機
930 本体
931 表示部
932 スピーカ
933 マイク
934 操作ボタン
941 本体
942 表示部
943 操作スイッチ
1000 スパッタリング用ターゲット
1001 イオン
1002 スパッタリング粒子
1003 被成膜面
Claims (6)
- 二値のデータ又は多値のデータを記憶するメモリセルと、
前記メモリセルに記憶された前記データを外部に読み出すための読み出し回路と、を有し、
前記読み出し回路は、二値のデータを読み出す第1の読み出し回路と、多値のデータを読み出す第2の読み出し回路と、を有することを特徴とする半導体装置。 - 二値のデータ又は多値のデータを記憶するメモリセルと、
前記メモリセルに記憶された前記データを外部に読み出すための読み出し回路と、
前記メモリセルに記憶された前記データを書き込むための書き込み回路と、を有し、
前記読み出し回路は、二値のデータを読み出す第1の読み出し回路と、多値のデータを読み出す第2の読み出し回路と、を有し、
前記書き込み回路は、二値のデータを書き込む第1の書き込み回路と、多値のデータを書き込む第2の書き込み回路と、を有することを特徴とする半導体装置。 - 請求項1又は請求項2において、
前記第1の読み出し回路は、参照電圧が与えられたコンパレータを有することを特徴とする半導体装置。 - 請求項1乃至請求項3のいずれか一において、
前記第2の読み出し回路は、それぞれ異なる電圧レベルの参照電圧が与えられた複数のコンパレータと、前記コンパレータの出力信号に応じて、多ビットの信号を出力する演算回路と、を有することを特徴とする半導体装置。 - 請求項4において、
前記第1の読み出し回路は、前記第2の読み出し回路が有する前記複数のコンパレータのいずれか一であることを特徴とする半導体装置。 - 請求項1乃至請求項5のいずれか一において、
前記メモリセルは、第1のトランジスタ、前記第1のトランジスタのゲートの電位を保持する機能を有する第2のトランジスタ及び容量素子と、を有し、
前記第2のトランジスタの半導体層は、酸化物半導体で構成されることを特徴とする半導体装置。
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WO2021111250A1 (ja) * | 2019-12-06 | 2021-06-10 | 株式会社半導体エネルギー研究所 | 情報処理装置 |
US12014175B2 (en) | 2019-10-25 | 2024-06-18 | Semiconductor Energy Laboratory Co., Ltd. | Data processing system and operation method of data processing system |
JP7549424B2 (ja) | 2019-11-18 | 2024-09-11 | インターナショナル・ビジネス・マシーンズ・コーポレーション | ソリッドステート・ストレージ・デバイス用メモリ・コントローラ |
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- 2013-12-23 JP JP2013264732A patent/JP2014142986A/ja not_active Withdrawn
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JPH09213079A (ja) * | 1996-02-07 | 1997-08-15 | Nec Corp | 半導体記憶装置 |
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JP2012079399A (ja) * | 2010-09-10 | 2012-04-19 | Semiconductor Energy Lab Co Ltd | 半導体装置 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US12014175B2 (en) | 2019-10-25 | 2024-06-18 | Semiconductor Energy Laboratory Co., Ltd. | Data processing system and operation method of data processing system |
JP7532204B2 (ja) | 2019-10-25 | 2024-08-13 | 株式会社半導体エネルギー研究所 | 情報処理システム、および情報処理システムの動作方法 |
JP7549424B2 (ja) | 2019-11-18 | 2024-09-11 | インターナショナル・ビジネス・マシーンズ・コーポレーション | ソリッドステート・ストレージ・デバイス用メモリ・コントローラ |
WO2021111250A1 (ja) * | 2019-12-06 | 2021-06-10 | 株式会社半導体エネルギー研究所 | 情報処理装置 |
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US20140177345A1 (en) | 2014-06-26 |
US9437273B2 (en) | 2016-09-06 |
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