KR102351193B1 - 기억 장치 및 반도체 장치 - Google Patents
기억 장치 및 반도체 장치 Download PDFInfo
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- KR102351193B1 KR102351193B1 KR1020167031080A KR20167031080A KR102351193B1 KR 102351193 B1 KR102351193 B1 KR 102351193B1 KR 1020167031080 A KR1020167031080 A KR 1020167031080A KR 20167031080 A KR20167031080 A KR 20167031080A KR 102351193 B1 KR102351193 B1 KR 102351193B1
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- oxide semiconductor
- transistor
- semiconductor film
- film
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Images
Classifications
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- G—PHYSICS
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- 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
- G11C11/4091—Sense or sense/refresh amplifiers, or associated sense circuitry, e.g. for coupled bit-line precharging, equalising or isolating
-
- 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
- G11C11/4094—Bit-line management or 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
- G11C11/21—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
- G11C11/4097—Bit-line organisation, e.g. bit-line layout, folded bit lines
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/04—Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
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- 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
- G11C7/1051—Data output circuits, e.g. read-out amplifiers, data output buffers, data output registers, data output level conversion circuits
- G11C7/1069—I/O lines read out arrangements
-
- H01L27/10805—
-
- H01L29/7869—
-
- 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
-
- 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
-
- 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]
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- H10D86/423—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs having a particular composition, shape or crystalline structure of the active layer comprising semiconductor materials not belonging to the Group IV, e.g. InGaZnO
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- H10D86/40—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
- H10D86/60—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs wherein the TFTs are in active matrices
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Abstract
Description
도 2는 기억 장치의 구조를 도시한 도면.
도 3은 기억 장치의 구조를 도시한 도면.
도 4는 기억 장치의 구조를 도시한 도면.
도 5는 기억 장치의 구조를 도시한 도면.
도 6은 메모리 셀, 센스 앰프, 프리차지 회로, 스위치 회로, 및 메인 앰프의 접속 구조를 도시한 도면.
도 7은 타이밍 차트를 도시한 도면.
도 8은 어레이의 레이아웃을 도시한 도면.
도 9는 기억 장치의 구조를 도시한 도면.
도 10은 반도체 장치의 단면 구조를 도시한 도면.
도 11의 (A)~(C)는 트랜지스터의 구조를 도시한 도면.
도 12의 (A)~(C)는 트랜지스터의 구조를 도시한 도면.
도 13은 반도체 장치의 단면 구조를 도시한 도면.
도 14의 (A)~(F) 각각은 전자 기기를 도시한 도면.
도 15의 (A)~(C)는 테스트 회로의 구조를 도시한 도면.
도 16은 트랜지스터의 특성을 나타낸 것.
도 17의 (A) 및 (B)는 테스트 회로의 파형을 나타낸 것.
도 18의 (A) 및 (B)는 셀 어레이의 특성을 도시한 도면.
도 19는 테스트 회로의 구조를 도시한 도면.
도 20은 셀 어레이의 특성을 도시한 도면.
본 출원은 2014년 4월 10일에 일본 특허청에 출원된 일련 번호 2014-080872의 일본 특허 출원, 2014년 4월 28일에 일본 특허청에 출원된 일련 번호 2014-092831의 일본 특허 출원, 및 2014년 9월 4일에 일본 특허청에 출원된 일련 번호 2014-180022의 일본 특허 출원에 기초하고, 본 명세서에 그 전문이 참조로 통합된다.
Claims (12)
- 기억 장치에 있어서,
제 1 층에서의 센스 앰프; 및
상기 제 1 층 위의 제 2 층에서의 제 1 회로 및 제 2 회로를 포함하고,
상기 센스 앰프는 제 1 배선 및 제 2 배선에 전기적으로 접속되고,
상기 제 1 회로는, 제 3 배선의 전위에 따라 온 상태 및 오프 상태가 되는 제 1 스위치, 및 상기 제 1 스위치를 통하여 상기 제 1 배선에 전기적으로 접속되는 제 1 용량 소자를 포함하고,
상기 제 2 회로는, 제 4 배선의 전위에 따라 온 상태 및 오프 상태가 되는 제 2 스위치, 및 상기 제 2 스위치를 통하여 상기 제 2 배선에 전기적으로 접속되는 제 2 용량 소자를 포함하고,
상기 제 1 배선은 상기 제 2 층에서 상기 제 3 배선과 교차하고,
상기 제 2 배선은 상기 제 2 층에서 상기 제 4 배선과 교차하고,
상기 제 1 배선은 상기 제 4 배선과 교차하지 않고,
상기 제 2 배선은 상기 제 3 배선과 교차하지 않고,
상기 제 1 스위치 및 상기 제 2 스위치 각각은 트랜지스터를 포함하고,
상기 트랜지스터는 제 1 산화물 반도체막, 상기 제1 산화물 반도체막 위의 제 2 산화물 반도체막, 소스 전극 또는 드레인 전극으로서 기능하도록 구성된 상기 제 2 산화물 반도체막 위의 도전체, 상기 도전체 위의 제 3 반도체막, 상기 제 3 반도체막 위의 게이트 절연층, 및 상기 게이트 절연층 위의 게이트 전극을 포함하는, 기억 장치. - 삭제
- 제 1 항에 있어서,
상기 제 1 산화물 반도체막 및 상기 제 2 산화물 반도체막은 In, Ga, 및 Zn을 포함하는, 기억 장치. - 반도체 장치에 있어서,
제 1 항에 따른 기억 장치; 및
논리 회로를 포함하는, 반도체 장치. - 기억 장치에 있어서,
센스 앰프를 포함하는 제 1 층;
상기 센스 앰프에 전기적으로 접속되는 제 1 배선 및 제 2 배선; 및
제 3 배선, 제 4 배선, 제 1 영역, 및 제 2 영역을 포함하는, 상기 제 1 층 위의 제 2 층을 포함하고,
상기 제 1 영역 및 상기 제 2 영역은 상기 센스 앰프와 중첩되고,
상기 제 1 영역은, 각각이 제 1 트랜지스터를 포함하며 상기 제 1 배선 및 상기 제 3 배선과 전기적으로 접속되는 복수의 제 1 메모리 셀을 포함하고,
상기 제 2 영역은, 각각이 제 2 트랜지스터를 포함하며 상기 제 2 배선 및 상기 제 4 배선에 전기적으로 접속되는 복수의 제 2 메모리 셀을 포함하고,
상기 제 1 배선은 상기 제 3 배선과 교차하고,
상기 제 2 배선은 상기 제 4 배선과 교차하고,
상기 제 1 배선은 상기 제 4 배선과 교차하지 않고,
상기 제 2 배선은 상기 제 3 배선과 교차하지 않고,
상기 제 1 트랜지스터 및 상기 제 2 트랜지스터 각각은 제 1 산화물 반도체막, 상기 제1 산화물 반도체막 위의 제 2 산화물 반도체막, 소스 전극 또는 드레인 전극으로서 기능하도록 구성된 상기 제 2 산화물 반도체막 위의 도전체, 상기 도전체 위의 제 3 반도체막, 상기 제 3 반도체막 위의 게이트 절연층, 및 상기 게이트 절연층 위의 게이트 전극을 포함하는, 기억 장치. - 삭제
- 제 5 항에 있어서,
상기 제 1 산화물 반도체막 및 상기 제 2 산화물 반도체막은 In, Ga, 및 Zn을 포함하는, 기억 장치. - 반도체 장치에 있어서,
제 5 항에 따른 기억 장치; 및
논리 회로를 포함하는, 반도체 장치. - 기억 장치에 있어서,
제 1 센스 앰프 및 제 2 센스 앰프를 포함하는 제 1 층;
상기 제 1 센스 앰프에 전기적으로 접속되는 제 1 배선 및 제 2 배선;
상기 제 2 센스 앰프에 전기적으로 접속되는 제 3 배선 및 제 4 배선; 및
제 5 배선, 제 6 배선, 제 1 영역, 제 2 영역, 제 3 영역, 및 제 4 영역을 포함하는, 상기 제 1 층 위의 제 2 층을 포함하고,
상기 제 1 영역 및 상기 제 3 영역은 상기 제 1 센스 앰프와 중첩되고,
상기 제 2 영역 및 상기 제 4 영역은 상기 제 2 센스 앰프와 중첩되고,
상기 제 1 영역은, 각각이 제 1 트랜지스터를 포함하며 상기 제 1 배선 및 상기 제 5 배선에 전기적으로 접속되는 복수의 제 1 메모리 셀을 포함하고,
상기 제 2 영역은, 각각이 제 2 트랜지스터를 포함하며 상기 제 2 배선 및 상기 제 6 배선에 전기적으로 접속되는 복수의 제 2 메모리 셀을 포함하고,
상기 제 3 영역은, 각각이 제 3 트랜지스터를 포함하며 상기 제 3 배선 및 상기 제 5 배선에 전기적으로 접속되는 복수의 제 3 메모리 셀을 포함하고,
상기 제 4 영역은, 각각이 제 4 트랜지스터를 포함하며 상기 제 4 배선 및 상기 제 6 배선에 전기적으로 접속되는 복수의 제 4 메모리 셀을 포함하고,
상기 제 1 배선 및 상기 제 3 배선 각각은 상기 제 5 배선과 교차하고,
상기 제 2 배선 및 상기 제 4 배선 각각은 상기 6 배선과 교차하고,
상기 제 1 배선 및 상기 제 3 배선은 상기 제 6 배선과 교차하지 않고,
상기 제 2 배선 및 상기 제 4 배선은 상기 제 5 배선과 교차하지 않고,
상기 제 1 트랜지스터, 상기 제 2 트랜지스터, 상기 제 3 트랜지스터, 및 상기 제 4 트랜지스터 각각은 제 1 산화물 반도체막, 상기 제1 산화물 반도체막 위의 제 2 산화물 반도체막, 소스 전극 또는 드레인 전극으로서 기능하도록 구성된 상기 제 2 산화물 반도체막 위의 도전체, 상기 도전체 위의 제 3 반도체막, 상기 제 3 반도체막 위의 게이트 절연층, 및 상기 게이트 절연층 위의 게이트 전극을 포함하는, 기억 장치. - 삭제
- 제 9 항에 있어서,
상기 제 1 산화물 반도체막 및 상기 제 2 산화물 반도체막은 In, Ga, 및 Zn을 포함하는, 기억 장치. - 반도체 장치에 있어서,
제 9 항에 따른 기억 장치; 및
논리 회로를 포함하는, 반도체 장치.
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US20130155790A1 (en) * | 2011-12-15 | 2013-06-20 | Semiconductor Energy Laboratory Co., Ltd. | Storage device |
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