KR20150113009A - 반도체 장치 및 그 제조 방법 - Google Patents
반도체 장치 및 그 제조 방법 Download PDFInfo
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- KR20150113009A KR20150113009A KR1020157021511A KR20157021511A KR20150113009A KR 20150113009 A KR20150113009 A KR 20150113009A KR 1020157021511 A KR1020157021511 A KR 1020157021511A KR 20157021511 A KR20157021511 A KR 20157021511A KR 20150113009 A KR20150113009 A KR 20150113009A
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- 239000004065 semiconductor Substances 0.000 title claims description 67
- 238000000034 method Methods 0.000 title claims description 18
- 238000004519 manufacturing process Methods 0.000 title description 25
- 125000006850 spacer group Chemical group 0.000 claims abstract description 34
- 239000011810 insulating material Substances 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims description 38
- 239000002184 metal Substances 0.000 claims description 38
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 37
- 229920005591 polysilicon Polymers 0.000 claims description 37
- 239000000758 substrate Substances 0.000 claims description 29
- 239000003990 capacitor Substances 0.000 claims description 19
- 239000012535 impurity Substances 0.000 claims description 19
- 230000005669 field effect Effects 0.000 claims description 18
- 238000009792 diffusion process Methods 0.000 claims description 16
- 238000005530 etching Methods 0.000 claims description 12
- 238000000059 patterning Methods 0.000 claims description 4
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 2
- 229910021341 titanium silicide Inorganic materials 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 claims description 2
- 229910021342 tungsten silicide Inorganic materials 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 description 86
- 239000011229 interlayer Substances 0.000 description 37
- 239000010410 layer Substances 0.000 description 36
- 229910052581 Si3N4 Inorganic materials 0.000 description 16
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 14
- 229910052814 silicon oxide Inorganic materials 0.000 description 14
- 239000002356 single layer Substances 0.000 description 10
- 229920002120 photoresistant polymer Polymers 0.000 description 9
- 238000002955 isolation Methods 0.000 description 8
- 239000007800 oxidant agent Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000001590 oxidative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- -1 HfSiON Chemical compound 0.000 description 1
- 229910021193 La 2 O 3 Inorganic materials 0.000 description 1
- 229910017493 Nd 2 O 3 Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000005380 borophosphosilicate glass Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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Abstract
Description
도 2는 제3 실시형태의 반도체 장치를 설명하는 도면이다.
도 3은 제3 실시형태의 반도체 장치의 제조 방법을 설명하는 도면이다.
도 4는 제3 실시형태의 반도체 장치의 제조 방법을 설명하는 도면이다.
도 5는 제3 실시형태의 반도체 장치의 제조 방법을 설명하는 도면이다.
도 6은 제3 실시형태의 반도체 장치의 제조 방법을 설명하는 도면이다.
도 7은 제3 실시형태의 반도체 장치의 제조 방법을 설명하는 도면이다.
도 8은 제3 실시형태의 반도체 장치의 제조 방법을 설명하는 도면이다.
도 9는 제3 실시형태의 반도체 장치의 제조 방법을 설명하는 도면이다.
도 10은 제3 실시형태의 반도체 장치의 제조 방법을 설명하는 도면이다.
도 11은 제3 실시형태의 반도체 장치의 제조 방법을 설명하는 도면이다.
도 12는 제3 실시형태의 반도체 장치의 제조 방법을 설명하는 도면이다.
도 13은 관련 기술의 반도체 장치의 문제점을 설명하는 도면이다.
도 14는 관련 기술의 반도체 장치의 문제점을 설명하는 도면이다.
2 메모리 셀 영역
3 주변 회로 영역
11 단차
91a, 91b, 91c 포토레지스트막
100 반도체 기판
101 메모리 셀 활성 영역
102 주변 회로 활성 영역
103 주변 LDD(Lightly doped drain) 영역
104 주변 소스/드레인 영역
200 소자 분리 영역
300 매립 워드라인
501 비트라인
502 게이트 전극
505 비트라인 플러그
510 게이트 절연막
511 폴리실리콘막
512 폴리실리콘막
513 금속막
514 마스크 절연막
550 라이너층
551 라이너막
551' 라이너막
552 라이너막
560 스페이스막
600 제1 층간 절연막
610 비트콘 층간 절연막
620 개구
750 주변 콘택
760 주변 배선
780 정지막
790 제2 층간 절연막
800 커패시터
810 플레이트 전극
900 제3 층간 절연막
910 배선 콘택
920 배선
930 보호 절연막
D1 산화물
Claims (11)
- 고유전율 절연재료를 포함하고, 상면과 저면과 서로 대향하는 2개의 측면을 구비하고, 상기 저면에서 기판과 접하며, 상기 2개의 측면의 간격으로 정의되는 제1 폭을 가지는 게이트 절연막;
상기 게이트 절연막의 일부를 개재하여 상기 기판과 대향하고, 상기 제1 폭과 평행한 방향을 따라 상기 제1 폭보다 좁은 제2 폭을 가지는 하부 게이트 전극;
상기 하부 게이트 전극을 덮고, 상부와 하부와 서로 대향하는 2개의 측부를 구비하고, 상기 제1 폭과 평행한 방향을 따라 제3 폭을 가지는 상부 게이트 전극; 및
상기 상부 게이트 전극의 측부, 상기 상부 게이트 전극의 하부의 일부, 상기 하부 게이트 전극의 일부, 상기 하부 게이트 전극과 접하지 않는 상기 게이트 절연막의 상면의 일부, 및 상기 게이트 절연막의 측면을 덮는 제1 스페이서층
을 가지는 전계 효과 트랜지스터를 구비하는 반도체 장치. - 제1항에 있어서,
상기 제3 폭은 제1 폭과 동일한 폭이거나, 또는 제1 폭보다 넓은 반도체 장치. - 제1항 또는 제2항에 있어서,
상기 게이트 절연막의 상면 및 측면을 덮는 상기 제1 스페이서층의 두께는, 상기 게이트 절연막의 두께보다 두꺼운 반도체 장치. - 제1항 내지 제3항 중 어느 한 항에 있어서,
상기 상부 게이트 전극 상에 상기 상부와 접하고, 상기 제3 폭을 가지는 마스크 절연막을 더 구비하는 반도체 장치. - 제1항 내지 제4항 중 어느 한 항에 있어서,
평면에서 봤을 때, 상기 제1 스페이서층을 따라 상기 기판 내의 상기 게이트 절연막을 사이에 두고 양측에 형성된 제1 불순물 확산층을 구비하는 반도체 장치. - 제5항에 있어서,
상기 제1 스페이서층의 측면을 덮고, 상기 제1 스페이서층 근방의 상기 제1 불순물 확산층을 덮는 제2 스페이서층; 및
평면에서 봤을 때, 상기 제2 스페이서층을 따라 상기 기판 내의 상기 게이트 절연막을 사이에 두고 양측에 형성된 제2 불순물 확산층
을 구비하는 반도체 장치. - 제1항 내지 제6항 중 어느 한 항에 있어서,
한 쌍의 불순물 확산층을 가지는 셀 트랜지스터;
상기 셀 트랜지스터의 한쪽의 불순물 확산층에 접속된 커패시터; 및
상기 셀 트랜지스터의 다른 쪽의 불순물 확산층에 접속된 비트라인
을 더 구비하는 반도체 장치. - 제1항 내지 제7항 중 어느 한 항에 있어서,
상기 하부 게이트 전극은 폴리실리콘막을 구비하는 반도체 장치. - 제1항 내지 제8항 중 어느 한 항에 있어서,
상기 상부 게이트 전극은 금속막을 구비하는 반도체 장치. - 제9항에 있어서,
상기 금속막은, 티탄실리사이드막, 텅스텐실리사이드막, 질화티탄막 및 텅스텐막으로 이루어지는 군에서 선택된 적어도 1종의 막으로 이루어지는 반도체 장치. - 기판 상에, 고유전율 절연재료를 포함하는 게이트 절연막을 형성하는 공정;
상기 게이트 절연막 상에 하부 게이트 전극을 형성하는 공정;
상기 하부 게이트 전극 상에 상부 게이트 전극을 형성하는 공정;
상기 상부 게이트 전극 및 상기 하부 게이트 전극을 패터닝하는 공정;
상기 하부 게이트 전극을 측면 식각하여, 상기 하부 게이트 전극의 서로 대향하는 2개의 측면의 간격으로 정의되는 제2 폭을 가늘게 하는 공정;
상기 게이트 절연막에서의 상기 제2 폭과 평행한 방향을 따른 제1 폭이 상기 제2 폭보다 넓게 되도록, 상기 게이트 절연막을 선택적으로 제거하는 공정; 및
상기 상부 게이트 전극의 측부 및 하부와, 상기 하부 게이트 전극의 측면과, 상기 게이트 절연막의 상면 및 측면의 노출 부분을 덮도록, 제1 스페이서층을 형성하는 공정
을 구비하는 반도체 장치의 제조 방법.
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JPJP-P-2013-018241 | 2013-02-01 | ||
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PCT/JP2014/051903 WO2014119596A1 (ja) | 2013-02-01 | 2014-01-29 | 半導体装置およびその製造方法 |
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US (1) | US20150372137A1 (ko) |
KR (1) | KR20150113009A (ko) |
DE (1) | DE112014000641T5 (ko) |
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WO (1) | WO2014119596A1 (ko) |
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CN108630698B (zh) * | 2017-03-24 | 2019-10-18 | 联华电子股份有限公司 | 半导体存储装置及其形成方法 |
KR102525163B1 (ko) | 2018-05-15 | 2023-04-24 | 삼성전자주식회사 | 집적회로 소자 |
US11569251B2 (en) | 2019-08-08 | 2023-01-31 | Taiwan Semiconductor Manufacturing Company, Ltd. | High voltage polysilicon gate in high-K metal gate device |
US11502163B2 (en) * | 2019-10-23 | 2022-11-15 | Nanya Technology Corporation | Semiconductor structure and fabrication method thereof |
CN113644121B (zh) * | 2021-08-04 | 2023-05-26 | 福建省晋华集成电路有限公司 | 半导体器件及其制备方法 |
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JPH03163833A (ja) * | 1989-11-21 | 1991-07-15 | Mitsubishi Electric Corp | 半導体装置およびその製造方法 |
JP2001185722A (ja) * | 1999-12-24 | 2001-07-06 | Hitachi Ltd | 半導体集積回路装置の製造方法 |
JP4447128B2 (ja) * | 2000-07-12 | 2010-04-07 | 富士通マイクロエレクトロニクス株式会社 | 絶縁ゲート型半導体装置の製造方法 |
JP2003031656A (ja) * | 2001-07-12 | 2003-01-31 | Sanyo Electric Co Ltd | 半導体装置およびその製造方法 |
US7105430B2 (en) * | 2004-03-26 | 2006-09-12 | Freescale Semiconductor, Inc. | Method for forming a semiconductor device having a notched control electrode and structure thereof |
JP2007088122A (ja) * | 2005-09-21 | 2007-04-05 | Renesas Technology Corp | 半導体装置 |
US8258587B2 (en) * | 2008-10-06 | 2012-09-04 | Taiwan Semiconductor Manufacturing Company, Ltd. | Transistor performance with metal gate |
JP2012019139A (ja) * | 2010-07-09 | 2012-01-26 | Panasonic Corp | 半導体装置及びその製造方法 |
US8884340B2 (en) * | 2011-05-25 | 2014-11-11 | Samsung Electronics Co., Ltd. | Semiconductor devices including dual gate electrode structures and related methods |
JP6006921B2 (ja) * | 2011-07-22 | 2016-10-12 | ピーエスフォー ルクスコ エスエイアールエルPS4 Luxco S.a.r.l. | 半導体装置およびその製造方法 |
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2014
- 2014-01-29 US US14/764,970 patent/US20150372137A1/en not_active Abandoned
- 2014-01-29 KR KR1020157021511A patent/KR20150113009A/ko not_active Application Discontinuation
- 2014-01-29 DE DE112014000641.6T patent/DE112014000641T5/de not_active Ceased
- 2014-01-29 TW TW103103562A patent/TW201448216A/zh unknown
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WO2014119596A1 (ja) | 2014-08-07 |
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