KR20030038742A - 반도체 메모리 및 반도체 메모리 셀을 제조하는 방법 - Google Patents
반도체 메모리 및 반도체 메모리 셀을 제조하는 방법 Download PDFInfo
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- KR20030038742A KR20030038742A KR10-2003-7003809A KR20037003809A KR20030038742A KR 20030038742 A KR20030038742 A KR 20030038742A KR 20037003809 A KR20037003809 A KR 20037003809A KR 20030038742 A KR20030038742 A KR 20030038742A
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- South Korea
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- trench
- semiconductor memory
- diffusion barrier
- conductive
- disposed
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- 239000003990 capacitor Substances 0.000 title claims abstract description 63
- 239000004065 semiconductor Substances 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims description 48
- 238000009792 diffusion process Methods 0.000 claims abstract description 50
- 230000004888 barrier function Effects 0.000 claims abstract description 43
- 239000000945 filler Substances 0.000 claims abstract description 31
- 239000010410 layer Substances 0.000 claims description 51
- 239000011247 coating layer Substances 0.000 claims description 26
- 230000008569 process Effects 0.000 claims description 21
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 239000001257 hydrogen Substances 0.000 claims description 7
- 208000012868 Overgrowth Diseases 0.000 claims description 6
- 239000000758 substrate Substances 0.000 abstract description 22
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 14
- 229910052710 silicon Inorganic materials 0.000 description 14
- 239000010703 silicon Substances 0.000 description 14
- 239000002019 doping agent Substances 0.000 description 11
- 238000000407 epitaxy Methods 0.000 description 9
- 230000008901 benefit Effects 0.000 description 8
- 238000005229 chemical vapour deposition Methods 0.000 description 7
- 238000001020 plasma etching Methods 0.000 description 7
- 125000006850 spacer group Chemical group 0.000 description 7
- 229910052721 tungsten Inorganic materials 0.000 description 7
- 239000010937 tungsten Substances 0.000 description 7
- 229910052581 Si3N4 Inorganic materials 0.000 description 6
- 230000009643 growth defect Effects 0.000 description 6
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 6
- 238000005530 etching Methods 0.000 description 5
- -1 tungsten nitride Chemical class 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 229910052785 arsenic Inorganic materials 0.000 description 4
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 229910052814 silicon oxide Inorganic materials 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 229910021417 amorphous silicon Inorganic materials 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 229920005591 polysilicon Polymers 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 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
- 229910000077 silane Inorganic materials 0.000 description 2
- 229910021332 silicide Inorganic materials 0.000 description 2
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 2
- 229910021342 tungsten silicide Inorganic materials 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
- 229910021341 titanium silicide Inorganic materials 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
-
- 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
- H10B12/01—Manufacture or treatment
- H10B12/02—Manufacture or treatment for one transistor one-capacitor [1T-1C] memory cells
- H10B12/03—Making the capacitor or connections thereto
- H10B12/038—Making the capacitor or connections thereto the capacitor being in a trench in the substrate
-
- 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
- H10B12/37—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells the capacitor being at least partially in a trench in the substrate
- H10B12/373—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells the capacitor being at least partially in a trench in the substrate the capacitor extending under or around the transistor
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (15)
- - 트렌치 캐패시터(3)가 정열된 트렌치(5)와,- 상기 트렌치 캐패시터(3) 상에 평면 트랜지스터로서 배치된 선택 트랜지스터(4)와,- 상기 트렌치(5)에 배치된 캐패시터 유전체(8)와,- 상기 트렌치(5)에 배치된 도전성 트렌치 충진재(filling:10)와,- 상기 도전성 트렌치 충진재(10)에 배치된 확산 장벽(19)과,- 상기 확산 장벽상에 에피택셜 성장된 에피택셜 층(24)과,반도체 메모리.
- 제 1 항에 있어서,상기 선택 트랜지스터(4)의 상기 드레인 도핑 영역(13)은 상기 확산 장벽(19)의 하부에서 확산 장벽(19)과 접촉-접속되는반도체 메모리.
- 제 1 항 또는 제 2 항에 있어서,상기 확산 장벽(19)은 수평으로 배치되는반도체 메모리.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서,내부 홀(21)을 구비한 절연 피복 층(20)은 상기 도전성 트렌치 충진재(10) 상에 배치되는반도체 메모리.
- 제 4 항에 있어서,도전성 컨택트(22)가 상기 내부 홀(21)에 배치되는반도체 메모리.
- 제 5 항에 있어서,상기 도전성 컨택트(22)는 상기 도전성 트렌치 충진재(10)를 상기 선택 트랜지스터(4)의 상기 드레인 도핑 영역(13)에 접속시키는반도체 메모리.
- 제 4 항 내지 제 6 항 중 어느 한 항에 있어서,상기 절연 피복 층(20)의 상기 내부 홀(21)의 단면 영역은 상기 트렌치(5)의 단면보다 더 작은반도체 메모리.
- 제 4 항 내지 제 7 항 중 어느 한 항에 있어서,상기 절연 피복 층(20)은 측면 에지 웹으로서 형성되는반도체 메모리.
- 제 4 항 내지 제 8 항 중 어느 한 항에 있어서,상기 절연 피복 층(20)은 상부 에지(27)를 가지고, 상기 확산 장벽(19)은 상기 상부 에지(27)의 하부에 완전히 배치되는반도체 메모리.
- 제 5 항 내지 제 10 항 중 어느 한 항에 있어서,상기 절연 피복 층(20)은 상부 에지(27)를 가지고, 상기 도전성 컨택트(22)가 상기 상부 에지(27)상에 배치되는반도체 메모리.
- 제 5 항 내지 제 10 항 중 어느 한 항에 있어서,상기 확산 장벽(19)은 상기 도전성 컨택트(22)상에 배치되는반도체 메모리.
- - 상부 영역 및 하부 영역을 가지며, 도전성 트렌치 충진재(10)로 채워진 트렌치 캐패시터(3)를 트렌치(5)내에 형성하는 단계와,- 상기 도전성 트렌치 충진재(10)상에 확산 장벽(19)을 형성하는 단계와,- 에피택셜 층(24)과 함께 상기 확산 장벽(19)을 에피택셜 과잉 성장(overgrowth)하는 단계와,- 상기 트렌치 캐패시터(3)상에 평면 트랜지스터로서 선택 트랜지스터(4) - 상기 선택 트랜지스터(4)의 상기 드레인 영역(13)은 상기 에피택셜 층(24)에 형성됨 - 를 연속으로 형성하는 단계를 포함하는반도체 메모리 셀을 제조하는 방법.
- 제 12 항에 있어서,상기 확산 장벽(19)의 에피택셜 과잉 성장 이후에, 상기 에피택셜 과잉 성장보다 더 높은 온도로 리플로우 공정이 수행되는반도체 메모리 셀을 제조하는 방법.
- 제 13 항에 있어서,수소를 첨가해서 리플로우 공정이 수행되는반도체 메모리 셀을 제조하는 방법.
- 제 13 항 또는 제 14 항 중 어느 한 항에 있어서,에피택셜 성장과 리플로우 공정을 포함하는 처리 순서가 적어도 한번 반복되는반도체 메모리 셀을 제조하는 방법.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10045694.4 | 2000-09-15 | ||
DE10045694A DE10045694A1 (de) | 2000-09-15 | 2000-09-15 | Halbleiterspeicherzelle mit Grabenkondensator und Auswahltransistor und Verfahren zu ihrer Herstellung |
PCT/DE2001/003235 WO2002023636A1 (de) | 2000-09-15 | 2001-08-24 | Halbleiterspeicherzelle mit grabenkondensator und auswahltransistor und verfahren zu ihrer herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030038742A true KR20030038742A (ko) | 2003-05-16 |
KR100523881B1 KR100523881B1 (ko) | 2005-10-26 |
Family
ID=7656334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2003-7003809A Expired - Fee Related KR100523881B1 (ko) | 2000-09-15 | 2001-08-24 | 반도체 메모리 및 반도체 메모리 셀을 제조하는 방법 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7049647B2 (ko) |
EP (1) | EP1317777A1 (ko) |
JP (1) | JP2004509469A (ko) |
KR (1) | KR100523881B1 (ko) |
DE (1) | DE10045694A1 (ko) |
TW (1) | TW518751B (ko) |
WO (1) | WO2002023636A1 (ko) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2004523918A (ja) | 2001-03-09 | 2004-08-05 | インフィネオン テクノロジーズ アクチエンゲゼルシャフト | 半導体メモリセルおよびその製造方法 |
DE10111499C1 (de) * | 2001-03-09 | 2002-07-11 | Infineon Technologies Ag | Speicherzelle mit einem Graben und Verfahren zu ihrer Herstellung |
DE10113187C1 (de) | 2001-03-19 | 2002-08-29 | Infineon Technologies Ag | Verfahren zur Herstellung eines Grabenkondensators einer Speicherzelle eines Halbleiterspeichers |
DE10128211C1 (de) * | 2001-06-11 | 2002-07-11 | Infineon Technologies Ag | Speicher mit einer Speicherzelle, umfassend einen Auswahltransistor und einen Speicherkondensator sowie Verfahren zu seiner Herstellung |
DE10153110B4 (de) | 2001-10-22 | 2006-11-30 | Infineon Technologies Ag | Speicherzelle |
WO2003060994A1 (de) * | 2002-01-21 | 2003-07-24 | Infineon Technologies Ag | Speicherzelle mit niedertemperatur-schichten im grabenkondensator |
DE10202139B4 (de) | 2002-01-21 | 2006-07-13 | Infineon Technologies Ag | Speicherzelle mit einem dünnen Isolationskragen und Speicherbaustein |
DE10208774B4 (de) | 2002-02-28 | 2005-09-15 | Infineon Technologies Ag | Verfahren zur Herstellung einer Speicherzelle |
US6887768B1 (en) * | 2003-05-15 | 2005-05-03 | Lovoltech, Inc. | Method and structure for composite trench fill |
JP3927179B2 (ja) * | 2004-01-06 | 2007-06-06 | 株式会社東芝 | 半導体記憶装置およびその製造方法 |
US7410864B2 (en) * | 2004-04-23 | 2008-08-12 | Infineon Technologies Ag | Trench and a trench capacitor and method for forming the same |
DE102004040046B4 (de) * | 2004-08-18 | 2008-04-30 | Qimonda Ag | Herstellungsverfahren für einen Grabenkondensator mit einem Isolationskragen, der über einen vergrabenen Kontakt einseitig mit einem Substrat elektrisch verbunden ist, insbesondere für eine Halbleiterspeicherzelle, und entsprechender Grabenkondensator |
TWI278069B (en) * | 2005-08-23 | 2007-04-01 | Nanya Technology Corp | Method of fabricating a trench capacitor having increased capacitance |
US20080160735A1 (en) * | 2006-12-28 | 2008-07-03 | Qimonda Ag | Forming Polysilicon Regions |
US8293625B2 (en) * | 2011-01-19 | 2012-10-23 | International Business Machines Corporation | Structure and method for hard mask removal on an SOI substrate without using CMP process |
US10741638B2 (en) * | 2018-08-08 | 2020-08-11 | Infineon Technologies Austria Ag | Oxygen inserted Si-layers for reduced substrate dopant outdiffusion in power devices |
CN113270407B (zh) * | 2021-05-18 | 2023-03-24 | 复旦大学 | 动态随机存取存储器及其制备工艺 |
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US5214603A (en) * | 1991-08-05 | 1993-05-25 | International Business Machines Corporation | Folded bitline, ultra-high density dynamic random access memory having access transistors stacked above trench storage capacitors |
EP0535541B1 (de) | 1991-10-02 | 1996-03-13 | Siemens Aktiengesellschaft | Verfahren zur Herstellung einer Grabenstruktur in einem Substrat |
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DE19911149C1 (de) * | 1999-03-12 | 2000-05-18 | Siemens Ag | Integrierte Schaltungsanordnung, die eine in einem Substrat vergrabene leitende Struktur umfaßt, die mit einem Gebiet des Substrats elektrisch verbunden ist, und Verfahren zu deren Herstellung |
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-
2000
- 2000-09-15 DE DE10045694A patent/DE10045694A1/de not_active Withdrawn
-
2001
- 2001-08-24 WO PCT/DE2001/003235 patent/WO2002023636A1/de active IP Right Grant
- 2001-08-24 KR KR10-2003-7003809A patent/KR100523881B1/ko not_active Expired - Fee Related
- 2001-08-24 EP EP01962672A patent/EP1317777A1/de not_active Withdrawn
- 2001-08-24 JP JP2002527580A patent/JP2004509469A/ja active Pending
- 2001-09-14 TW TW090122850A patent/TW518751B/zh not_active IP Right Cessation
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2003
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Also Published As
Publication number | Publication date |
---|---|
KR100523881B1 (ko) | 2005-10-26 |
US7049647B2 (en) | 2006-05-23 |
TW518751B (en) | 2003-01-21 |
EP1317777A1 (de) | 2003-06-11 |
DE10045694A1 (de) | 2002-04-04 |
WO2002023636A1 (de) | 2002-03-21 |
US20030168690A1 (en) | 2003-09-11 |
JP2004509469A (ja) | 2004-03-25 |
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