KR101893904B1 - 반도체 기억 장치 - Google Patents
반도체 기억 장치 Download PDFInfo
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- KR101893904B1 KR101893904B1 KR1020177033130A KR20177033130A KR101893904B1 KR 101893904 B1 KR101893904 B1 KR 101893904B1 KR 1020177033130 A KR1020177033130 A KR 1020177033130A KR 20177033130 A KR20177033130 A KR 20177033130A KR 101893904 B1 KR101893904 B1 KR 101893904B1
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- South Korea
- Prior art keywords
- transistor
- potential
- oxide semiconductor
- gate
- insulating layer
- Prior art date
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Images
Classifications
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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
- G11C16/26—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
- G11C16/0408—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells containing floating gate transistors
- G11C16/0433—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells containing floating gate transistors comprising cells containing a single floating gate transistor and one or more separate select transistors
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- H01L27/112—
-
- H01L27/11521—
-
- H01L27/11524—
-
- H01L27/1225—
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B20/00—Read-only memory [ROM] devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B20/00—Read-only memory [ROM] devices
- H10B20/20—Programmable ROM [PROM] devices comprising field-effect components
- H10B20/25—One-time programmable ROM [OTPROM] devices, e.g. using electrically-fusible links
-
- 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
- H10B41/30—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the memory core region
-
- 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
- H10B41/30—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the memory core region
- H10B41/35—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the memory core region with a cell select transistor, e.g. NAND
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D86/00—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
- 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
- H10D86/421—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
- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D86/00—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
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2216/00—Indexing scheme relating to G11C16/00 and subgroups, for features not directly covered by these groups
- G11C2216/12—Reading and writing aspects of erasable programmable read-only memories
- G11C2216/26—Floating gate memory which is adapted to be one-time programmable [OTP], e.g. containing multiple OTP blocks permitting limited update ability
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract
다이오드 접속한 제 1 트랜지스터와, 다이오드 접속한 제 1 트랜지스터의 소스 전극 및 드레인 전극의 한쪽의 단자에 게이트가 접속하는 제 2 트랜지스터와, 다이오드 접속한 제 1 트랜지스터의 소스 전극 및 드레인 전극의 한쪽의 단자 및 제 2 트랜지스터의 게이트에 접속하는 용량 소자를 가지는 메모리 소자를 포함하는 반도체 기억 장치이다.
Description
도 2는 본 발명의 일 형태에 관한 반도체 기억 장치를 설명한 등가 회로도이다.
도 3은 본 발명의 일 형태에 관한 반도체 기억 장치를 설명한 등가 회로도이다.
도 4는 본 발명의 일 형태에 관한 반도체 기억 장치를 설명한 등가 회로도이다.
도 5는 본 발명의 일 형태에 관한 반도체 기억 장치를 설명한 등가 회로도이다.
도 6은 본 발명의 일 형태에 관한 반도체 기억 장치를 설명한 등가 회로도이다.
도 7은 본 발명의 일 형태에 관한 반도체 기억 장치를 설명한 등가 회로도이다.
도 8은 본 발명의 일 형태에 관한 반도체 기억 장치를 설명한 등가 회로도이다.
도 9는 본 발명의 일 형태에 관한 반도체 기억 장치를 설명한 등가 회로도이다.
도 10은 본 발명의 일 형태에 관한 반도체 기억 장치를 설명한 블럭도이다.
도 11은 본 발명의 일 형태에 관한 반도체 기억 장치를 설명한 등가 회로도이다.
도 12는 본 발명의 일 형태에 관한 반도체 기억 장치를 설명한 등가 회로도이다.
도 13은 본 발명의 일 형태에 관한 반도체 기억 장치를 설명한 등가 회로도이다.
도 14는 본 발명의 일 형태에 관한 반도체 기억 장치를 설명한 상면도이다.
도 15는 본 발명의 일 형태에 관한 반도체 기억 장치를 설명한 단면도이다.
도 16은 본 발명의 일 형태에 관한 반도체 기억 장치의 제작 방법을 설명한 단면도이다.
도 17은 RFID 태그를 설명한 도면이다.
도 18은 RFID 태그를 설명한 도면이다.
도 19는 RFID 태그의 사용예를 설명한 도면이다.
도 20은 시뮬레이션에 이용한 등가 회로도 및 그 결과를 나타낸 도면이다.
도 21은 산화물 반도체를 이용한 트랜지스터의 특성을 나타낸 도면이다.
도 22는 산화물 반도체를 이용한 트랜지스터의 특성 평가용 회로도이다.
도 23은 산화물 반도체를 이용한 트랜지스터의 특성 평가용 타이밍 차트이다.
도 24는 산화물 반도체를 이용한 트랜지스터의 특성을 나타낸 도면이다.
도 25는 산화물 반도체를 이용한 트랜지스터의 특성을 나타낸 도면이다.
도 26은 산화물 반도체를 이용한 트랜지스터의 특성을 나타낸 도면이다.
103:트랜지스터 104:용량 소자
110:메모리 셀 111:메모리 소자
112:트랜지스터 113:트랜지스터
114:용량 소자 115:트랜지스터
116:트랜지스터 117:회로
118:인버터 120:메모리 셀
121:메모리 소자 122:트랜지스터
123:트랜지스터 124:용량 소자
125:트랜지스터 129:영역
130:메모리 셀 131:메모리 소자
132:트랜지스터 133:트랜지스터
134:용량 소자 135:트랜지스터
300:반도체 기억 장치 301:메모리 셀 어레이
302:칼럼 디코더 303:로 디코더
304:인터페이스 회로 305:메모리 셀
310:반도체 기억 장치 311:메모리 셀 어레이
312:메모리 셀 어레이 313:메모리 셀
314:메모리 셀 400:메모리 셀
401:메모리 소자 402:트랜지스터
403:트랜지스터 404:용량 소자
405:트랜지스터 406:트랜지스터
502:트랜지스터 503:트랜지스터
504:용량 소자 505:트랜지스터
506:트랜지스터 508:기판
510:절연층 512:절연층
514:채널 영역 516:저농도 불순물 영역
518:고농도 불순물 영역 519:반도체층
520:반도체층 522:게이트 절연층
524:게이트 절연층 526:게이트 전극
528:용량 전극 530:사이드 월 절연층
532:사이드 월 절연층 534a:배선
534b:배선 534c:배선
534d:배선 534e:배선
534f:배선 536:절연층
538:절연층 540:절연층
541:산화물 반도체층 542:산화물 반도체층
544:게이트 절연층 546a:게이트 전극
546b:배선 552:절연층
554:절연층 601:트랜지스터
602:트랜지스터 603:용량 소자
611:저항 612:트랜지스터
613:용량 614:저항
615:저항 800:측정계
802:용량 소자 802a:용량 소자
802b:용량 소자 802c:용량 소자
804:트랜지스터 805:트랜지스터
806:트랜지스터 808:트랜지스터
1520:RFID 태그 1521:안테나 회로
1522:신호 처리 회로 1523:정류 회로
1524:전원 회로 1525:복조 회로
1526:발진 회로 1527:논리 회로
1528:메모리 콘트롤 회로 1529:메모리 회로
1530:논리 회로 1531:앰프
1532:변조 회로 1581:배터리
Claims (9)
- 반도체 장치로서,
제 1 트랜지스터; 및
제 2 트랜지스터를 포함하고,
상기 제 1 트랜지스터의 소스 및 드레인 중 한쪽은 상기 제 1 트랜지스터의 게이트에 전기적으로 접속되고,
상기 제 1 트랜지스터의 상기 소스 및 상기 드레인 중 다른 한쪽은 상기 제 2 트랜지스터의 게이트에 전기적으로 접속되고,
상기 제 1 트랜지스터는 제 1 산화물 반도체층을 포함하고,
상기 제 1 산화물 반도체층은 캐리어 밀도가 5×1014/cm3 미만인 영역을 포함하고,
상기 제 1 트랜지스터의 채널폭 1μm당 오프 전류는 상기 제 1 트랜지스터의 상기 소스와 상기 드레인 사이의 전위차가 1V 또는 10V인 경우에 1×10-18A/μm 이하인, 반도체 장치.
- 반도체 장치로서,
제 1 트랜지스터; 및
제 2 트랜지스터를 포함하고,
상기 제 1 트랜지스터의 소스 및 드레인 중 한쪽은 상기 제 1 트랜지스터의 게이트에 전기적으로 접속되고,
상기 제 1 트랜지스터의 상기 소스 및 상기 드레인 중 다른 한쪽은 상기 제 2 트랜지스터의 게이트에 전기적으로 접속되고,
상기 제 1 트랜지스터는 제 1 산화물 반도체층을 포함하고,
상기 제 2 트랜지스터는 제 2 산화물 반도체층을 포함하고,
상기 제 1 산화물 반도체층은 수소 농도가 1×1016/cm3 미만인 영역을 포함하고,
상기 제 1 트랜지스터의 채널폭 1μm당 오프 전류는 상기 제 1 트랜지스터의 상기 소스와 상기 드레인 사이의 전위차가 1V 또는 10V인 경우에 1×10-18A/μm 이하인, 반도체 장치.
- 반도체 장치로서,
제 1 트랜지스터;
제 2 트랜지스터;
제 3 트랜지스터; 및
제 4 트랜지스터를 포함하고,
상기 제 1 트랜지스터의 소스 및 드레인 중 한쪽은 상기 제 1 트랜지스터의 게이트에 전기적으로 접속되고,
상기 제 1 트랜지스터의 상기 소스 및 상기 드레인 중 다른 한쪽은 상기 제 2 트랜지스터의 게이트에 전기적으로 접속되고,
상기 제 3 트랜지스터의 소스 및 드레인 중 한쪽은 상기 제 3 트랜지스터의 게이트에 전기적으로 접속되고,
상기 제 3 트랜지스터의 상기 소스 및 상기 드레인 중 다른 한쪽은 상기 제 4 트랜지스터의 게이트에 전기적으로 접속되고,
상기 제 1 트랜지스터는 제 1 산화물 반도체층을 포함하고,
상기 제 3 트랜지스터는 제 2 산화물 반도체층을 포함하고,
상기 제 1 트랜지스터의 채널폭 1μm당 오프 전류는 상기 제 1 트랜지스터의 상기 소스와 상기 드레인 사이의 전위차가 1V 또는 10V인 경우에 1×10-18A/μm 이하이고,
상기 제 3 트랜지스터의 채널폭 1μm당 오프 전류는 상기 제 3 트랜지스터의 상기 소스와 상기 드레인 사이의 전위차가 1V 또는 10V인 경우에 1×10-18A/μm 이하인, 반도체 장치.
- 제 3 항에 있어서,
상기 제 1 산화물 반도체층은 캐리어 밀도가 5×1014/cm3 미만인 영역을 포함하고,
상기 제 2 산화물 반도체층은 캐리어 밀도가 5×1014/cm3 미만인 영역을 포함하는, 반도체 장치.
- 제 3 항 또는 제 4 항에 있어서,
상기 제 1 산화물 반도체층은 수소 농도가 1×1016/cm3 미만인 영역을 포함하고,
상기 제 2 산화물 반도체층은 수소 농도가 1×1016/cm3 미만인 영역을 포함하는, 반도체 장치.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,
상기 제 1 산화물 반도체층은 상기 제 1 산화물 반도체층의 상면에 거의 수직인 방향으로 c축이 배향되는 결정들을 포함하는, 반도체 장치.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,
절연층을 더 포함하고,
상기 절연층은 상기 제 1 트랜지스터의 상기 게이트와 상기 제 1 산화물 반도체층 사이에 있고,
상기 절연층은 산소를 포함하는, 반도체 장치.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,
상기 제 1 트랜지스터는 n 채널형 트랜지스터이고,
상기 제 2 트랜지스터는 n 채널형 트랜지스터인, 반도체 장치.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,
용량 소자를 더 포함하고,
상기 용량 소자는 상기 제 2 트랜지스터의 상기 게이트에 전기적으로 접속되는, 반도체 장치.
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