JP2014199707A - 半導体装置の駆動方法 - Google Patents
半導体装置の駆動方法 Download PDFInfo
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- JP2014199707A JP2014199707A JP2014043444A JP2014043444A JP2014199707A JP 2014199707 A JP2014199707 A JP 2014199707A JP 2014043444 A JP2014043444 A JP 2014043444A JP 2014043444 A JP2014043444 A JP 2014043444A JP 2014199707 A JP2014199707 A JP 2014199707A
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- transistor
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- bit line
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- 229910020944 Sn-Mg Inorganic materials 0.000 description 1
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- 229910009369 Zn Mg Inorganic materials 0.000 description 1
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- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
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- FRNOGLGSGLTDKL-UHFFFAOYSA-N thulium atom Chemical compound [Tm] FRNOGLGSGLTDKL-UHFFFAOYSA-N 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/24—Bit-line control circuits
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/56—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
- 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
- G11C11/5642—Sensing or reading circuits; Data output circuits
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/04—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/04—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS
- G11C16/0408—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells containing floating gate transistors
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/04—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS
- G11C16/0408—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells containing floating gate transistors
- G11C16/0441—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells containing floating gate transistors comprising cells containing multiple floating gate devices, e.g. separate read-and-write FAMOS transistors with connected floating gates
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/04—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS
- G11C16/0408—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells containing floating gate transistors
- G11C16/0441—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells containing floating gate transistors comprising cells containing multiple floating gate devices, e.g. separate read-and-write FAMOS transistors with connected floating gates
- G11C16/045—Floating gate memory cells with both P and N channel memory transistors, usually sharing a common floating gate
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/08—Address circuits; Decoders; Word-line control circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- 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
- H01L27/1214—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 comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1222—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 comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or crystalline structure of the active layer
- H01L27/1225—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 comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or crystalline structure of the active layer with semiconductor materials not belonging to the group IV of the periodic table, e.g. InGaZnO
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- 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
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/7869—Thin film transistors, i.e. transistors with a channel being at least partly a thin film having a semiconductor body comprising an oxide semiconductor material, e.g. zinc oxide, copper aluminium oxide, cadmium stannate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- 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
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78696—Thin film transistors, i.e. transistors with a channel being at least partly a thin film characterised by the structure of the channel, e.g. multichannel, transverse or longitudinal shape, length or width, doping structure, or the overlap or alignment between the channel and the gate, the source or the drain, or the contacting structure of the channel
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B41/00—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates
- H10B41/70—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates the floating gate being an electrode shared by two or more components
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Semiconductor Memories (AREA)
- Dram (AREA)
- Thin Film Transistor (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Abstract
【解決手段】ビット線の電位をプリチャージし、データを読み出すためのトランジスタを介して該ビット線を放電させ、放電により変化したビット線の電位を多値のデータとして読み出す構成とする。該構成により、トランジスタのゲートに保持された、データに対応する電位を読み出す際、データを読み出すための信号を切り換える頻度を1回とすることができる。
【選択図】図1
Description
1.実施の形態1(本発明の一態様に関するメモリセルについて)
2.実施の形態2(半導体装置の構成例について)
3.実施の形態3(酸化物半導体について)
4.実施の形態4(半導体装置を構成する素子について)
5.実施の形態5(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)
6.実施例(作製した半導体装置について)
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が有する、メモリセルの回路構成及びその動作について、図1を参照して説明する。
本実施の形態では、図1で説明した駆動方法を行うことのできる、半導体装置の一例について説明する。また以下では、図2乃至図8を参照して説明する。
図2は、図1(a)で説明したメモリセル100を有する、半導体装置の構成例を示すブロック図である。
図3は、図2で説明した行選択ドライバ202の構成例を示すブロック図である。
図4は、図2で説明した列選択ドライバ203の構成例を示すブロック図である。
図5は、図2で説明したA/Dコンバータ204の構成例を示すブロック図である。
図6には、半導体装置が有するメモリセルの回路図を示している。また、図7及び図8に示すタイミングチャート図は、図6の動作を説明するものである。
本実施の形態では、上記実施の形態で説明したオフ電流の低いトランジスタの半導体層に用いることのできる酸化物半導体層について説明する。
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のメモリセルが有するトランジスタの断面の構造について、図面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11、図12を用いて説明する。
p2 期間
p3 期間
p4 期間
p5 期間
p6 期間
p7 期間
p8 期間
p9 期間
p10 期間
p11 期間
p12 期間
p13 期間
p14 期間
p15 期間
p16 期間
T0 期間
T1 期間
T2 期間
V0 電位
V7 電位
Vref0 参照電圧
Vref6 参照電圧
100 メモリセル
100A メモリセル
100B メモリセル
100C メモリセル
100D メモリセル
111 トランジスタ
111A トランジスタ
111B トランジスタ
112 トランジスタ
114 容量素子
200 半導体装置
201 メモリセルアレイ
202 行選択ドライバ
203 列選択ドライバ
204 A/Dコンバータ
301 デコーダ
302 制御回路
401 デコーダ
402 ラッチ回路
403 D/Aコンバータ
404 スイッチ回路
405 トランジスタ
406 トランジスタ
501 コンパレータ
502 エンコーダ
503 ラッチ回路
504 バッファ
600 半導体装置
700 電子部品
701 リード
702 プリント基板
703 半導体装置
704 実装基板
800 半導体基板
801 素子分離用絶縁膜
802 不純物領域
803 不純物領域
804 ゲート電極
805 ゲート絶縁膜
809 絶縁膜
810 配線
811 配線
812 配線
815 配線
816 配線
817 配線
820 絶縁膜
821 配線
830 半導体膜
830a 酸化物半導体層
830b 酸化物半導体層
830c 酸化物半導体層
831 ゲート絶縁膜
832 導電膜
833 導電膜
834 ゲート電極
835 導電膜
841 絶縁膜
843 導電膜
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 スピーカー
933 マイク
934 操作ボタン
941 本体
942 表示部
943 操作スイッチ
Claims (6)
- 第1のトランジスタを介して第2のトランジスタのゲートに与えられる複数のデータに基づく電位を保持させることで、前記データの書き込みを行うメモリセルを有し、
前記データの読み出しは、
前記第2のトランジスタに電気的に接続された、ビット線の電位をプリチャージし、その後、前記第2のトランジスタを介して該ビット線を放電させて行われることを特徴とする半導体装置の駆動方法。 - 第1のトランジスタを介して第2のトランジスタのゲートに与えられる複数のデータに基づく電位を保持させることで、前記データの書き込みを行うメモリセルを有し、
前記データの読み出しは、
前記第2のトランジスタに電気的に接続された、ビット線の電位をプリチャージし、その後、前記第2のトランジスタを介して該ビット線を放電させることで、変化する前記ビット線の電位を前記データの判定に用いて行われることを特徴とする半導体装置の駆動方法。 - 第1のトランジスタを介して第2のトランジスタのゲートに与えられる複数のデータに基づく電位を保持させることで、前記データの書き込みを行い、
前記第2のトランジスタのゲートに容量素子の一方の電極を電気的に接続し、他方の電極に読み出し信号を与えることで、前記データの読み出しを行う、メモリセルを有し、
前記データの読み出しは、
前記第2のトランジスタに電気的に接続された、ビット線の電位をプリチャージし、その後、前記読み出し信号をHレベルからLレベルとすることで、前記第2のトランジスタを介して該ビット線を放電させることで、変化する前記ビット線の電位を前記データの判定に用いて行われることを特徴とする半導体装置の駆動方法。 - 請求項3において、前記データの書き込みは、
前記読み出し信号をHレベルからLレベルとした状態として行われることを特徴とする半導体装置の駆動方法。 - 請求項1乃至4のいずれか一において、
前記第1のトランジスタは、半導体層に酸化物半導体を有することを特徴とする半導体装置の駆動方法。 - 請求項1乃至5のいずれか一において、
前記第2のトランジスタは、pチャネル型のトランジスタであることを特徴とする半導体装置の駆動方法。
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Also Published As
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US9240244B2 (en) | 2016-01-19 |
US20140269099A1 (en) | 2014-09-18 |
US20160203871A1 (en) | 2016-07-14 |
US9472293B2 (en) | 2016-10-18 |
KR20150128820A (ko) | 2015-11-18 |
JP6397638B2 (ja) | 2018-09-26 |
WO2014142043A1 (en) | 2014-09-18 |
TWI622056B (zh) | 2018-04-21 |
TW201447913A (zh) | 2014-12-16 |
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