KR102480794B1 - 기억 장치와 반도체 장치 - Google Patents
기억 장치와 반도체 장치 Download PDFInfo
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- KR102480794B1 KR102480794B1 KR1020227002333A KR20227002333A KR102480794B1 KR 102480794 B1 KR102480794 B1 KR 102480794B1 KR 1020227002333 A KR1020227002333 A KR 1020227002333A KR 20227002333 A KR20227002333 A KR 20227002333A KR 102480794 B1 KR102480794 B1 KR 102480794B1
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- transistor
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- gate electrode
- oxide semiconductor
- semiconductor film
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- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- 238000002230 thermal chemical vapour deposition Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- OYQCBJZGELKKPM-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O-2].[Zn+2].[O-2].[In+3] OYQCBJZGELKKPM-UHFFFAOYSA-N 0.000 description 1
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Abstract
기억 소자로서 기능하는 트랜지스터에 축적된 전하를 보유하기 위한 스위칭 소자로서, 산화물 반도체막을 활성층으로서 이용한 트랜지스터를 기억 장치의 각 메모리 셀에 형성한다. 또한, 기억 소자로서 이용하는 트랜지스터는 제 1 게이트 전극과, 제 2 게이트 전극과, 제 1 게이트 전극과 제 2 게이트 전극의 사이에 위치하는 반도체막과, 제 1 게이트 전극과 반도체막의 사이에 위치하는 제 1 절연막과, 제 2 게이트 전극과 반도체막의 사이에 위치하는 제 2 절연막과, 반도체막에 접하는 소스 전극 및 드레인 전극을 가진다.
Description
도 2(A)는 기억 소자의 구성을 설명한 도면이고, 도 2(B)는 그 동작에 대하여 설명한 도면.
도 3은 메모리 셀의 구성을 나타낸 도면.
도 4는 메모리 셀의 구성을 나타낸 도면.
도 5는 셀 어레이의 구성을 나타낸 도면.
도 6은 셀 어레이의 구성을 나타낸 도면.
도 7은 기억 장치의 구동 방법을 나타낸 타이밍 차트.
도 8은 기억 장치의 구성을 나타낸 도면.
도 9는 판독 회로의 구성을 나타낸 도면.
도 10은 기억 장치의 제작 방법을 나타낸 메모리 셀의 단면도.
도 11은 메모리 셀의 상면도.
도 12는 산화물 반도체를 이용한 역스태거형의 트랜지스터의 종단면도.
도 13은 도 12에 나타낸 A-A' 위에서의 에너지 밴드도(모식도).
도 14(A)는 게이트 전극(GE)에 정(正)의 전압(VG>0)이 인가된 상태를 나타내고, 도 14(B)는 게이트 전극(GE)에 부(負)의 전압(VG<0)이 인가된 상태를 나타낸 도면.
도 15는 진공 준위와 금속의 일 함수(φM), 산화물 반도체의 전자 친화력(χ)의 관계를 나타낸 도면.
도 16은 기억 매체의 구성을 나타낸 도면.
도 17은 전자기기의 구성을 나타낸 도면.
도 18은 측정용 회로의 구성을 나타낸 도면.
도 19는 측정 결과를 나타낸 도면(경과 시간(Time)과 출력 전위(Vout)와의 관계를 나타낸 도면).
도 20은 측정 결과를 나타낸 도면(소스-드레인 전압(V)과 오프 전류(I)와의 관계를 나타낸 도면).
도 21은 기억 장치의 구동 방법을 나타낸 타이밍 차트.
102:트랜지스터 103:용량 소자
110:기판 111:게이트 전극
112:절연막 113:산화물 반도체막
114:소스 전극 115:드레인 전극
116:절연막 117:절연막
121:게이트 전극 123:산화물 반도체막
124:소스 전극 125:드레인 전극
126:게이트 전극 130:선
131:선 140:기판
141:게이트 전극 142:절연막
143:산화물 반도체막 144:소스 전극
145:드레인 전극 146:절연막
147:절연막 148:채널 보호막
151:게이트 전극 153:산화물 반도체막
154:소스 전극 155:드레인 전극
156:게이트 전극 157:채널 보호막
160:기판 161:게이트 전극
162:절연막 163:산화물 반도체막
164:소스 전극 165:드레인 전극
166:절연막 167:절연막
171:게이트 전극 173:산화물 반도체막
174:소스 전극 175:드레인 전극
176:게이트 전극 200:기판
208:산화물 반도체막 211:게이트 전극
212:절연막 213:산화물 반도체막
214:소스 전극 215:드레인 전극
216:절연막 217:절연막
221:게이트 전극 223:반도체막
224:소스 전극 225:드레인 전극
226:게이트 전극 230:절연막
231:절연막 241:게이트 전극
242:절연막 243:산화물 반도체막
244:소스 전극 245:드레인 전극
246:절연막 247:절연막
251:게이트 전극 253:반도체막
254:소스 전극 255:드레인 전극
256:게이트 전극 260:절연막
261:절연막 270:기판
300:메모리 셀 301:트랜지스터
302:트랜지스터 303:용량 소자
304:전원선 310_1:트랜지스터
310_2:트랜지스터 310_3:트랜지스터
311_1:트랜지스터 311_2:트랜지스터
311_3:트랜지스터 312_1:연산 증폭기
312_2:연산 증폭기 312_3:연산 증폭기
320:트랜지스터 321:트랜지스터
400:기판 401:게이트 전극
402:게이트 전극 403:게이트 절연막
404:산화물 반도체막 405:산화물 반도체막
406:산화물 반도체막 407:소스 전극
408:드레인 전극 409:소스 전극
410:드레인 전극 411:절연막
412:컨택트홀 413:백 게이트 전극
414:절연막 420:트랜지스터
421:트랜지스터 430:용량 소자
500:셀 어레이 501:구동 회로
502:판독 회로 503:워드선 구동 회로
504:데이터선 구동 회로 505:제어 회로
506:워드선용 디코더 508:데이터선용 디코더
509:데이터선용 셀렉터 701:기억 장치
702:커넥터 703:인터페이스
704:발광 다이오드 705:콘트롤러
706:프린트 배선 기판 707:커버재
801-1:측정계 801-2:측정계
801-3:측정계 802:용량 소자
803:트랜지스터 804:트랜지스터
805:트랜지스터 806:트랜지스터
7031:하우징 7032:하우징
7033:표시부 7034:표시부
7035:마이크로폰 7036:스피커
7037:조작 키 7038:스타일러스
7041:하우징 7042:표시부
7043:음성 입력부 7044:음성 출력부
7045:조작 키 7046:수광부
7051:하우징 7052:표시부
7053:조작 키
Claims (8)
- 삭제
- 삭제
- 삭제
- 기억 장치로서,
제 1 트랜지스터와 제 2 트랜지스터를 복수의 각 메모리 셀에 가지고,
상기 제 1 트랜지스터는 제 1 게이트 전극, 제 2 게이트 전극, 상기 제 1 게이트 전극과 상기 제 2 게이트 전극 사이에 위치하는 제 1 반도체막, 상기 제 1 게이트 전극과 상기 제 1 반도체막 사이에 위치하는 제 1 절연막, 상기 제 2 게이트 전극과 상기 제 1 반도체막 사이에 위치하는 제 2 절연막, 및 상기 제 1 반도체막에 접하는 제 1 소스 전극 및 제 1 드레인 전극을 가지고,
상기 제 2 트랜지스터는 게이트 전극, 제 2 반도체막, 상기 게이트 전극과 상기 제 2 반도체막 사이에 위치하는 상기 제 1 절연막, 및 상기 제 2 반도체막에 접하는 제 2 소스 전극 및 제 2 드레인 전극을 가지고,
상기 제 1 반도체막과 상기 제 2 반도체막은 산화물 반도체를 포함하고,
상기 제 1 소스 전극 및 상기 제 1 드레인 전극 중 어느 한쪽은 상기 제 2 절연막을 사이에 끼우고 상기 제 2 게이트 전극과 중첩되어 용량 소자를 형성하고,
상기 제 2 소스 전극 및 상기 제 2 드레인 전극 중 어느 한쪽은 상기 제 2 게이트 전극에 접속되는, 기억 장치.
- 기억 장치로서,
제 1 트랜지스터와 제 2 트랜지스터를 복수의 각 메모리 셀에 가지고,
상기 제 1 트랜지스터는 제 1 게이트 전극, 제 2 게이트 전극, 상기 제 1 게이트 전극과 상기 제 2 게이트 전극 사이에 위치하는 제 1 반도체막, 상기 제 1 게이트 전극과 상기 제 1 반도체막 사이에 위치하는 제 1 절연막, 상기 제 2 게이트 전극과 상기 제 1 반도체막 사이에 위치하는 제 2 절연막, 및 상기 제 1 반도체막에 접하는 제 1 소스 전극 및 제 1 드레인 전극을 가지고,
상기 제 2 트랜지스터는 게이트 전극, 제 2 반도체막, 상기 게이트 전극과 상기 제 2 반도체막 사이에 위치하는 제 3 절연막, 및 상기 제 2 반도체막에 접하는 제 2 소스 전극 및 제 2 드레인 전극을 가지고,
상기 제 2 반도체막은 산화물 반도체를 포함하고,
상기 제 1 소스 전극 및 상기 제 1 드레인 전극 중 어느 한쪽은 상기 제 2 절연막을 사이에 끼우고 상기 제 2 게이트 전극과 중첩되어 용량 소자를 형성하고,
상기 제 2 소스 전극 및 상기 제 2 드레인 전극 중 어느 한쪽은 상기 제 2 게이트 전극에 접속되는, 기억 장치.
- 제 4 항 또는 제 5 항에 있어서,
상기 산화물 반도체는 In-Ga-Zn-O계 산화물 반도체인, 기억 장치.
- 제 4 항 또는 제 5 항에 있어서,
상기 산화물 반도체의 수소 농도는 5×1019/cm3 이하인, 기억 장치.
- 제 4 항 또는 제 5 항에 있어서,
상기 제 2 트랜지스터의 오프 전류 밀도는 100 zA/μm 이하인, 기억 장치.
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