JP5778549B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP5778549B2 JP5778549B2 JP2011235706A JP2011235706A JP5778549B2 JP 5778549 B2 JP5778549 B2 JP 5778549B2 JP 2011235706 A JP2011235706 A JP 2011235706A JP 2011235706 A JP2011235706 A JP 2011235706A JP 5778549 B2 JP5778549 B2 JP 5778549B2
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- 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
- G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
- 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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- 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
- G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
- 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
- G11C11/401—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells
- G11C11/403—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells with charge regeneration common to a multiplicity of memory cells, i.e. external refresh
- G11C11/404—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells with charge regeneration common to a multiplicity of memory cells, i.e. external refresh with one charge-transfer gate, e.g. MOS transistor, per cell
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/67—Thin-film transistors [TFT]
- H10D30/674—Thin-film transistors [TFT] characterised by the active materials
- H10D30/6755—Oxide semiconductors, e.g. zinc oxide, copper aluminium oxide or cadmium stannate
-
- 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
- G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
- 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
- G11C11/401—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells
- G11C11/4063—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing
- G11C11/407—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing for memory cells of the field-effect type
- G11C11/409—Read-write [R-W] circuits
- G11C11/4096—Input/output [I/O] data management or control circuits, e.g. reading or writing circuits, I/O drivers or bit-line switches
-
- 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
- G11C11/565—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 capacitive charge storage elements
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/10—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/30—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells
- H10B12/33—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells the capacitor extending under the transistor
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D1/00—Resistors, capacitors or inductors
- H10D1/60—Capacitors
- H10D1/68—Capacitors having no potential barriers
- H10D1/692—Electrodes
- H10D1/711—Electrodes having non-planar surfaces, e.g. formed by texturisation
- H10D1/714—Electrodes having non-planar surfaces, e.g. formed by texturisation having horizontal extensions
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/80—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs
- H10D84/811—Combinations of field-effect devices and one or more diodes, capacitors or resistors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/80—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs
- H10D84/811—Combinations of field-effect devices and one or more diodes, capacitors or resistors
- H10D84/813—Combinations of field-effect devices and capacitor only
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Databases & Information Systems (AREA)
- Thin Film Transistor (AREA)
- Semiconductor Memories (AREA)
- Dram (AREA)
Description
本実施の形態では、半導体記憶装置であるメモリセルの構成およびその動作の例について、図1を用いて説明する。
本実施の形態では、半導体記憶装置であるメモリセルの構成およびその動作の実施の形態1と異なる例について、図4を用いて説明する。
本実施の形態では、半導体記憶装置の例として、実施の形態1で示したメモリセルを用いたn行m列(n、mは3以上の自然数)のメモリモジュールについて、図5を用いて説明する。
本実施の形態では、図6を用いて、半導体記憶装置であるメモリセルの作製方法の例を示す。
(a―A)2+(b―B)2+(c―C)2≦r2
を満たすことをいい、rは、例えば、0.05とすればよい。他の酸化物半導体材料でも同様である。
本実施の形態では、実施の形態1乃至実施の形態3に示した半導体記憶装置であるメモリセルの作製方法について、実施の形態4と異なる例を示す。
本実施の形態では、キャパシタの一つを領域400に設けた例について説明する。
本実施の形態では、本発明の一態様を用いた半導体記憶装置の動作の例について説明する。
本実施の形態では、c軸配向し、かつab面、表面または界面の方向から見て三角形状または六角形状の原子配列を有し、c軸においては金属原子が層状または金属原子と酸素原子とが層状に配列しており、ab面においてはa軸またはb軸の向きが異なる(c軸を中心に回転した)結晶(CAAC:C Axis Aligned Crystalともいう。)を含む酸化物について説明する。
本実施の形態では、酸化物半導体膜を用いたトランジスタの電界効果移動度に関して説明する。
線形領域におけるドレイン電流Idは、以下の式となる。
上式の両辺をVgで割り、更に両辺の対数を取ると、以下のようになる。
本実施の形態では、酸化物半導体膜を用いたトランジスタの例について説明する。
<作製例1>
本作製例では、In、SnおよびZnを含む酸化物半導体膜を用いたトランジスタの一例について、図25などを用いて説明する。
本作製例では、上記作製例1とは異なるIn、SnおよびZnを含む酸化物半導体膜を用いたトランジスタの他の一例について示す。
401 シリコンウェハ
404 ゲート絶縁膜
406 層間膜
410 サブメモリセル
412 下地膜
413 電極
414 ゲート絶縁膜
415 半導体膜
416 層間膜
417 ゲート電極
418 電極
419 容量配線
420 サブメモリセル
429 容量配線
430 サブメモリセル
439 容量配線
450 トランジスタ
451 トランジスタ
461 キャパシタ
462 キャパシタ
463 キャパシタ
571 メモリセル
572 メモリセル
573 メモリセル
581 メモリセル
582 メモリセル
583 メモリセル
590 領域
603 電極
609 容量配線
630 サブメモリセル
640 凸部
651 トランジスタ
663 キャパシタ
664 キャパシタ
1101 下地絶縁層
1102 埋め込み絶縁物
1103a 半導体領域
1103b 半導体領域
1103c 半導体領域
1104 ゲート絶縁膜
1105 ゲート
1106a 側壁絶縁物
1106b 側壁絶縁物
1107 絶縁物
1108a ソース
1108b ドレイン
1500 基板
1502 下地絶縁膜
1504 保護絶縁膜
1506 酸化物半導体膜
1506a 高抵抗領域
1506b 低抵抗領域
1508 ゲート絶縁膜
1510 ゲート電極
1512 側壁絶縁膜
1514 一対の電極
1516 層間絶縁膜
1518 配線
1600 基板
1602 下地絶縁膜
1606 酸化物半導体膜
1608 ゲート絶縁膜
1610 ゲート電極
1614 一対の電極
1616 層間絶縁膜
1618 配線
1620 保護膜
Claims (2)
- 複数のメモリセルと、センスアンプと、を有し、
前記複数のメモリセルそれぞれは、トランジスタと、前記トランジスタと電気的に接続されたキャパシタと、を有し、
前記トランジスタは、酸化物半導体層にチャネルが形成され、
前記センスアンプは、シリコンウエハ又はSOI基板を用いて形成され、
前記複数のメモリセルは、前記センスアンプの上方に、層間絶縁膜を介して前記センスアンプと重なる領域を有するように配置され、
前記複数のメモリセルのうちの少なくとも2つは、前記キャパシタの容量値が異なり、
前記酸化物半導体層は、Inと、Gaと、Znと、を有する酸化物であって、複数の結晶部を有し、
前記複数の結晶部は、前記酸化物半導体層の被形成面に垂直な方向に沿うようにc軸配向し、
前記複数の結晶部は、a軸の向きが異なり、
前記複数の結晶部は、b軸の向きが異なることを特徴とする半導体装置。 - 複数のメモリセルと、センスアンプと、を有し、
前記複数のメモリセルそれぞれは、トランジスタと、前記トランジスタと電気的に接続されたキャパシタと、を有し、
前記トランジスタは、酸化物半導体層にチャネルが形成され、
前記センスアンプは、シリコンウエハ又はSOI基板を用いて形成され、
前記複数のメモリセルは、前記センスアンプの上方に、層間絶縁膜を介して前記センスアンプと重なる領域を有するように配置され、
前記酸化物半導体層は、Inと、Gaと、Znと、を有する酸化物であって、複数の結晶部を有し、
前記複数の結晶部は、前記酸化物半導体層の被形成面に垂直な方向に沿うようにc軸配向し、
前記複数の結晶部は、a軸の向きが異なり、
前記複数の結晶部は、b軸の向きが異なることを特徴とする半導体装置。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011235706A JP5778549B2 (ja) | 2010-10-29 | 2011-10-27 | 半導体装置 |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010242925 | 2010-10-29 | ||
| JP2010242925 | 2010-10-29 | ||
| JP2011113233 | 2011-05-20 | ||
| JP2011113233 | 2011-05-20 | ||
| JP2011235706A JP5778549B2 (ja) | 2010-10-29 | 2011-10-27 | 半導体装置 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015129552A Division JP6117282B2 (ja) | 2010-10-29 | 2015-06-29 | 半導体装置 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2013008936A JP2013008936A (ja) | 2013-01-10 |
| JP2013008936A5 JP2013008936A5 (ja) | 2014-10-23 |
| JP5778549B2 true JP5778549B2 (ja) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2011235706A Active JP5778549B2 (ja) | 2010-10-29 | 2011-10-27 | 半導体装置 |
| JP2015129552A Active JP6117282B2 (ja) | 2010-10-29 | 2015-06-29 | 半導体装置 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2015129552A Active JP6117282B2 (ja) | 2010-10-29 | 2015-06-29 | 半導体装置 |
Country Status (4)
| Country | Link |
|---|---|
| US (5) | US8654567B2 (ja) |
| JP (2) | JP5778549B2 (ja) |
| KR (1) | KR101924231B1 (ja) |
| TW (2) | TWI606444B (ja) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8854865B2 (en) | 2010-11-24 | 2014-10-07 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor memory device |
| TWI614747B (zh) * | 2011-01-26 | 2018-02-11 | 半導體能源研究所股份有限公司 | 記憶體裝置及半導體裝置 |
| KR102244460B1 (ko) * | 2013-10-22 | 2021-04-23 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 반도체 장치 |
| KR102320576B1 (ko) * | 2013-12-27 | 2021-11-02 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 반도체 장치 |
| JP6607681B2 (ja) | 2014-03-07 | 2019-11-20 | 株式会社半導体エネルギー研究所 | 半導体装置 |
| US9716100B2 (en) * | 2014-03-14 | 2017-07-25 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device, method for driving semiconductor device, and electronic device |
| KR20150126272A (ko) * | 2014-05-02 | 2015-11-11 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 산화물의 제작 방법 |
| KR20250019744A (ko) | 2014-05-30 | 2025-02-10 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 반도체 장치 및 발광 장치 |
| US10186311B2 (en) * | 2015-05-07 | 2019-01-22 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device or electronic component including the same |
| JP5941577B1 (ja) * | 2015-05-11 | 2016-06-29 | 力晶科技股▲ふん▼有限公司 | 半導体記憶装置 |
| US9728243B2 (en) | 2015-05-11 | 2017-08-08 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device or electronic component including the same |
| JP6901831B2 (ja) * | 2015-05-26 | 2021-07-14 | 株式会社半導体エネルギー研究所 | メモリシステム、及び情報処理システム |
| JP2016225614A (ja) | 2015-05-26 | 2016-12-28 | 株式会社半導体エネルギー研究所 | 半導体装置 |
| WO2017068478A1 (en) * | 2015-10-22 | 2017-04-27 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device or memory device including the semiconductor device |
| JP6906940B2 (ja) * | 2015-12-28 | 2021-07-21 | 株式会社半導体エネルギー研究所 | 半導体装置 |
| US20170221899A1 (en) * | 2016-01-29 | 2017-08-03 | Semiconductor Energy Laboratory Co., Ltd. | Microcontroller System |
| TWI743115B (zh) | 2016-05-17 | 2021-10-21 | 日商半導體能源硏究所股份有限公司 | 顯示裝置及其工作方法 |
| WO2018002766A1 (ja) * | 2016-06-30 | 2018-01-04 | 株式会社半導体エネルギー研究所 | 表示装置、移動体 |
| JP6698486B2 (ja) | 2016-09-26 | 2020-05-27 | 株式会社ジャパンディスプレイ | 表示装置 |
| JP2019164868A (ja) * | 2018-03-20 | 2019-09-26 | 東芝メモリ株式会社 | 半導体記憶装置 |
| JP7065147B2 (ja) * | 2020-04-28 | 2022-05-11 | 株式会社ジャパンディスプレイ | 半導体装置 |
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|---|---|
| US10038099B2 (en) | 2018-07-31 |
| US9147684B2 (en) | 2015-09-29 |
| US8923036B2 (en) | 2014-12-30 |
| TW201635287A (zh) | 2016-10-01 |
| US9680029B2 (en) | 2017-06-13 |
| US20140153319A1 (en) | 2014-06-05 |
| TWI549127B (zh) | 2016-09-11 |
| US8654567B2 (en) | 2014-02-18 |
| US20150097183A1 (en) | 2015-04-09 |
| US20170271522A1 (en) | 2017-09-21 |
| JP2013008936A (ja) | 2013-01-10 |
| US20150364607A1 (en) | 2015-12-17 |
| US20120106226A1 (en) | 2012-05-03 |
| KR20120046023A (ko) | 2012-05-09 |
| TWI606444B (zh) | 2017-11-21 |
| TW201230029A (en) | 2012-07-16 |
| JP6117282B2 (ja) | 2017-04-19 |
| JP2015233144A (ja) | 2015-12-24 |
| KR101924231B1 (ko) | 2018-11-30 |
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