KR100663001B1 - 반도체 소자의 캐패시터 구조 및 그 제조 방법 - Google Patents
반도체 소자의 캐패시터 구조 및 그 제조 방법 Download PDFInfo
- Publication number
- KR100663001B1 KR100663001B1 KR1020050132733A KR20050132733A KR100663001B1 KR 100663001 B1 KR100663001 B1 KR 100663001B1 KR 1020050132733 A KR1020050132733 A KR 1020050132733A KR 20050132733 A KR20050132733 A KR 20050132733A KR 100663001 B1 KR100663001 B1 KR 100663001B1
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- South Korea
- Prior art keywords
- polysilicon
- film
- capacitor
- dielectric
- layer
- Prior art date
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- 239000003990 capacitor Substances 0.000 title claims abstract description 51
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000004065 semiconductor Substances 0.000 title claims abstract description 8
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 84
- 229920005591 polysilicon Polymers 0.000 claims abstract description 84
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 16
- 239000010703 silicon Substances 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 16
- 238000000059 patterning Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000000151 deposition Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 9
- 238000005530 etching Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 29
- 239000011229 interlayer Substances 0.000 description 5
- 150000004767 nitrides Chemical class 0.000 description 3
- 239000012212 insulator Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B99/00—Subject matter not provided for in other groups of this subclass
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/40—Capacitors
- H01L28/60—Electrodes
- H01L28/82—Electrodes with an enlarged surface, e.g. formed by texturisation
- H01L28/90—Electrodes with an enlarged surface, e.g. formed by texturisation having vertical extensions
- H01L28/91—Electrodes with an enlarged surface, e.g. formed by texturisation having vertical extensions made by depositing layers, e.g. by depositing alternating conductive and insulating layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/08—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including only semiconductor components of a single kind
- H01L27/0805—Capacitors only
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims (4)
- 실리콘 기판의 일부 지역에 소정의 깊이로 형성된 트렌치;상기 트렌치의 표면을 비롯하여 상기 실리콘 기판 상에 형성된 절연막;상기 절연막 위에 형성된 제1 폴리실리콘막;상기 제1 폴리실리콘막 위에 형성되고 패터닝된 제1 유전막;상기 트렌치의 내부에 위치하고 상기 제1 유전막을 통하여 상기 제1 폴리실리콘막과 연결되며 여러 개의 수직 막대 형태로 패터닝된 제2 폴리실리콘막;상기 제1 유전막과 상기 제2 폴리실리콘막의 표면을 따라 형성된 제2 유전막; 및상기 제2 유전막 위에 형성되고 패터닝된 제3 폴리실리콘막;을 포함하며, 상기 제1 폴리실리콘막과 상기 제2 폴리실리콘막은 캐패시터의 하부 전극을 이루고, 상기 제1 유전막과 상기 제2 유전막은 캐패시터의 유전막을 이루며, 상기 제3 폴리실리콘막은 캐패시터의 상부 전극을 이루는 것을 특징으로 하는 반도체 소자의 캐패시터 구조.
- 제1항에 있어서,상기 제1 폴리실리콘막과 상기 제3 폴리실리콘막은 컨택을 통하여 금속 배선에 각각 연결되는 것을 특징으로 하는 반도체 소자의 캐패시터 구조.
- 실리콘 기판을 부분적으로 식각하여 트렌치를 형성하는 단계;상기 실리콘 기판 상에 절연막, 제1 폴리실리콘막, 제1 유전막을 차례로 증착하는 단계;상기 제1 유전막을 패터닝하는 단계;상기 패터닝된 제1 유전막을 통하여 상기 제1 폴리실리콘막과 연결되도록 상기 제1 유전막 위에 제2 폴리실리콘막을 증착하는 단계;상기 트렌치 내부에 위치하는 여러 개의 수직 막대 형태를 가지도록 상기 제2 폴리실리콘막을 패터닝하는 단계;상기 제1 유전막과 상기 제2 폴리실리콘막의 표면을 따라 제2 유전막을 증착하는 단계; 및상기 제2 유전막 위에 제3 폴리실리콘막을 증착하고 패터닝하는 단계;를 포함하는 반도체 소자의 캐패시터 제조 방법.
- 제3항에 있어서,상기 제1 폴리실리콘막과 상기 제3 폴리실리콘막에 각각 연결되도록 컨택을 형성하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 캐패시터 제조 방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050132733A KR100663001B1 (ko) | 2005-12-28 | 2005-12-28 | 반도체 소자의 캐패시터 구조 및 그 제조 방법 |
US11/644,818 US7682925B2 (en) | 2005-12-28 | 2006-12-22 | Capacitor and manufacturing method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050132733A KR100663001B1 (ko) | 2005-12-28 | 2005-12-28 | 반도체 소자의 캐패시터 구조 및 그 제조 방법 |
Publications (1)
Publication Number | Publication Date |
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KR100663001B1 true KR100663001B1 (ko) | 2006-12-28 |
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Family Applications (1)
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KR1020050132733A KR100663001B1 (ko) | 2005-12-28 | 2005-12-28 | 반도체 소자의 캐패시터 구조 및 그 제조 방법 |
Country Status (2)
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US (1) | US7682925B2 (ko) |
KR (1) | KR100663001B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113809233A (zh) * | 2020-06-16 | 2021-12-17 | 长鑫存储技术有限公司 | 电容器结构及其制备方法 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW200901382A (en) * | 2007-06-26 | 2009-01-01 | Nanya Technology Corp | Structure of a buried word line |
US7897473B2 (en) * | 2008-07-29 | 2011-03-01 | International Business Machines Corporation | Method of manufacturing a dual contact trench capacitor |
US8384140B2 (en) * | 2008-07-29 | 2013-02-26 | International Business Machines Corporation | Structure for dual contact trench capacitor and structure thereof |
US8198663B2 (en) * | 2008-07-29 | 2012-06-12 | International Business Machines Corporation | Structure for dual contact trench capacitor and structure thereof |
US7759189B2 (en) * | 2008-07-29 | 2010-07-20 | International Business Machines Corporation | Method of manufacturing a dual contact trench capacitor |
US8143135B2 (en) | 2009-10-08 | 2012-03-27 | International Business Machines Corporation | Embedded series deep trench capacitors and methods of manufacture |
US8664076B2 (en) * | 2011-09-21 | 2014-03-04 | Texas Instruments Incorporated | Method of forming a robust, modular MIS (metal-insulator-semiconductor) capacitor with improved capacitance density |
US10084035B2 (en) * | 2015-12-30 | 2018-09-25 | Teledyne Scientific & Imaging, Llc | Vertical capacitor contact arrangement |
US11107881B2 (en) * | 2019-04-25 | 2021-08-31 | Advanced Semiconductor Engineering, Inc. | Semiconductor package devices having conductive layer, semiconductor wall, conductive wall, and insulation layer |
Family Cites Families (1)
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FR2839811A1 (fr) * | 2002-05-15 | 2003-11-21 | St Microelectronics Sa | Condensateur en tranchees dans un substrat avec deux electrodes flottantes et independantes du substrat |
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- 2005-12-28 KR KR1020050132733A patent/KR100663001B1/ko active IP Right Grant
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- 2006-12-22 US US11/644,818 patent/US7682925B2/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113809233A (zh) * | 2020-06-16 | 2021-12-17 | 长鑫存储技术有限公司 | 电容器结构及其制备方法 |
CN113809233B (zh) * | 2020-06-16 | 2023-10-20 | 长鑫存储技术有限公司 | 电容器结构及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
US7682925B2 (en) | 2010-03-23 |
US20070148899A1 (en) | 2007-06-28 |
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