KR20040005514A - 반도체 메모리 장치 및 그의 제조방법 - Google Patents
반도체 메모리 장치 및 그의 제조방법 Download PDFInfo
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- KR20040005514A KR20040005514A KR1020020040091A KR20020040091A KR20040005514A KR 20040005514 A KR20040005514 A KR 20040005514A KR 1020020040091 A KR1020020040091 A KR 1020020040091A KR 20020040091 A KR20020040091 A KR 20020040091A KR 20040005514 A KR20040005514 A KR 20040005514A
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 title claims description 18
- 230000002093 peripheral effect Effects 0.000 claims abstract description 48
- 239000000758 substrate Substances 0.000 claims description 32
- 230000015572 biosynthetic process Effects 0.000 claims description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 19
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 19
- 238000002955 isolation Methods 0.000 claims description 14
- 229920002120 photoresistant polymer Polymers 0.000 claims description 12
- 238000005530 etching Methods 0.000 claims description 11
- 230000003647 oxidation Effects 0.000 claims description 11
- 238000007254 oxidation reaction Methods 0.000 claims description 11
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 7
- 229910021332 silicide Inorganic materials 0.000 claims description 7
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 7
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 6
- NCMAYWHYXSWFGB-UHFFFAOYSA-N [Si].[N+][O-] Chemical compound [Si].[N+][O-] NCMAYWHYXSWFGB-UHFFFAOYSA-N 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229920005591 polysilicon Polymers 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 5
- 238000001312 dry etching Methods 0.000 claims description 4
- 238000001039 wet etching Methods 0.000 claims description 4
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 claims description 2
- 238000005192 partition Methods 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 4
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 50
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
- 238000005229 chemical vapour deposition Methods 0.000 description 8
- 229910052710 silicon Inorganic materials 0.000 description 8
- 239000010703 silicon Substances 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 238000000059 patterning Methods 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 238000005468 ion implantation Methods 0.000 description 2
- UGACIEPFGXRWCH-UHFFFAOYSA-N [Si].[Ti] Chemical compound [Si].[Ti] UGACIEPFGXRWCH-UHFFFAOYSA-N 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
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- WNUPENMBHHEARK-UHFFFAOYSA-N silicon tungsten Chemical compound [Si].[W] WNUPENMBHHEARK-UHFFFAOYSA-N 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- 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
- H01L27/10—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 a plurality of individual components in a repetitive configuration
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
- G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
- G11C11/40—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
- G11C11/401—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells
- G11C11/403—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells with charge regeneration common to a multiplicity of memory cells, i.e. external refresh
- G11C11/405—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells with charge regeneration common to a multiplicity of memory cells, i.e. external refresh with three charge-transfer gates, e.g. MOS transistors, per cell
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
- G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
- G11C11/40—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
- G11C11/401—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells
- G11C11/406—Management or control of the refreshing or charge-regeneration cycles
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
- G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
- G11C11/40—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
- G11C11/401—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells
- G11C11/406—Management or control of the refreshing or charge-regeneration cycles
- G11C11/40603—Arbitration, priority and concurrent access to memory cells for read/write or refresh operations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/822—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/823462—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type with a particular manufacturing method of the gate insulating layers, e.g. different gate insulating layer thicknesses, particular gate insulator materials or particular gate insulator implants
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- 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
- H10B12/09—Manufacture or treatment with simultaneous manufacture of the peripheral circuit region and memory cells
-
- 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
- H10B12/05—Making the transistor
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (16)
- 반도체 기판 상에 소정의 구획을 형성하면서 메모리 소자들이 형성된 셀 영역과 상기 셀 영역을 둘러싸고 형성된 주변회로 영역을 포함하는 반도체 메모리 장치에 있어서,상기 셀 영역에 형성되어 메모리 소자 역할을 하며, 게이트와 상기 게이트의양측으로 형성된 소스/드레인 및 제1두께를 가진 제1게이트 절연막을 포함하는 복수의 셀 트랜지스터;상기 주변회로 영역에 형성되어 제1두께를 가진 제1게이트 절연막을 포함하는 복수의 코아 트랜지스터; 및상기 셀 영역의 게이트에 네거티브 바이어스(negative bias)를 인가할 수 있도록 상기 셀 영역과 인접하여 상기 주변회로 영역에 배치되어 제2두께를 가진 제2게이트 절연막을 포함하는 복수의 게이트 네거티브 바이어스용(negative bias) 트랜지스터를 포함하는 것을 특징으로 하는 반도체 메모리 장치.
- 제1항에 있어서, 상기 게이트 네거티브 바이어스용 트랜지스터(gate negative-bias transistor)는 상기 셀 트랜지스터(Cell transistor)의 게이트와 전기적으로 연결된 것을 특징으로 하는 반도체 메모리 장치.
- 제1항에 있어서, 상기 제1게이트 절연막은 상기 제2절연막의 두께보다 더 두꺼운 것을 특징으로 하는 반도체 메모리 장치.
- 제3항에 있어서, 상기 제1게이트 절연막 및 상기 제2게이트 절연막은 실리콘 산화막인 것을 특징으로 하는 반도체 메모리 장치.
- 제4항에 있어서, 상기 제1게이트 절연막은 2단계 산화법으로 형성되는 것을특징으로 하는 반도체 메모리 장치.
- a) 소정의 소자분리법으로 소자분리용 절연막을 형성하여 셀 영역과 주변회로 영역의 소자형성 영역 및 게이트 네거티브 바이어스(negative bias) 영역을 정의하는 단계;b) 상기 셀 영역과 상기 주변회로 영역의 상기 소자형성 영역에 제1게이트 절연막을 형성하고, 상기 게이트 네거티브 바이어스 영역에 제2게이트 절연막을 형성하는 단계; 및c) 상기 소자형성 영역에 게이트 전극을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 메모리 장치의 제조방법.
- 제6항에 있어서, 상기 소자분리용 절연막은 실리콘 산화막인 것을 특징으로 하는 반도체 메모리 장치의 제조방법.
- 제6항에 있어서, 상기 b)단계는,상기 소자 형성영역을 노출시키는 단계;상기 노출된 소자형성 영역에 상기 반도체 기판을 산화시켜 제1절연막을 형성하는 단계;상기 반도체 기판 상에 포토 레지스트를 형성하는 단계;상기 포토 레지스트에 정렬/노광으로 상기 게이트 네거티브 바이어스 영역이노출되도록 패턴을 형성하는 단계;상기 패턴닝된 포토 레지스트를 마스크로 이용하여 소정의 식각법으로 상기 게이트 네거티브 바이어스 영역에 형성된 제1절연막을 제거하는 단계; 및상기 반도체 기판의 소자형성 영역과 상기 네거티브 바이어스 영역에 제2절연막을 형성하여 상기 셀 영역과 상기 주변회로 영역에는 제1게이트 절연막을 형성하고, 상기 게이트 네거티브 바이어스 영역에는 제2게이트 절연막을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 메모리 장치의 제조방법.
- 제8항에 있어서, 상기 제1절연막은 실리콘 산화막과 실리콘 질소 산화막(Oxynitride) 중 어느 하나인 것을 특징으로 하는 반도체 메모리 장치의 제조방법.
- 제9항에 있어서, 상기 제1절연막은 열적 산화법(thermal oxidation)으로 형성되는 것을 특징으로 하는 반도체 메모리 장치의 제조방법.
- 제8항에 있어서, 상기 식각법은 식각용액을 이용한 습식 식각법인 것을 특징으로 하는 반도체 메모리 장치의 제조방법.
- 제11항에 있어서, 상기 식각용액은 산화막을 식각할 수 있는 불산(HF)을 포함하는 것을 특징으로 하는 반도체 메모리 장치의 제조방법.
- 제8항에 있어서, 상기 제2절연막은 실리콘 산화막(SiO2)과 실리콘 질소 산화막(SiON) 중 어느 하나인 것을 특징으로 하는 반도체 메모리 장치의 제조방법.
- 제6항에 있어서, 상기 c)단계는,상기 반도체 기판 전면에 게이트 도전막을 형성하는 단계;상기 게이트 도전막 상에 게이트 패턴을 가진 포토 레지스트를 형성하는 단계;상기 포토 레지스트를 마스크로 이용하여 건식식각법으로 상기 게이트 도전막에 게이트 패턴을 전사하는 단계를 포함하는 것을 특징으로 하는 반도체 메모리 정치의 제조방법.
- 제14항에 있어서, 상기 게이트 도전막은 불순물이 도핑된 도전성의 폴리 실리콘인 것을 특징으로 하는 반도체 메모리 정치의 제조방법.
- 제14항에 있어서, 상기 게이트 도전막은 폴리 실리콘과 금속 실리사이드막으로 구성된 것을 특징으로 하는 반도체 메모리 장치의 제조방법.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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KR10-2002-0040091A KR100493021B1 (ko) | 2002-07-10 | 2002-07-10 | 반도체 메모리 장치 및 그의 제조방법 |
US10/421,240 US6867445B2 (en) | 2002-07-10 | 2003-04-23 | Semiconductor memory devices including different thickness dielectric layers for the cell transistors and refresh transistors thereof |
US11/042,495 US7498220B2 (en) | 2002-07-10 | 2005-01-25 | Methods of fabricating semiconductor memory devices including different dielectric layers for the cell transistors and refresh transistors thereof |
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KR10-2002-0040091A KR100493021B1 (ko) | 2002-07-10 | 2002-07-10 | 반도체 메모리 장치 및 그의 제조방법 |
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KR20040005514A true KR20040005514A (ko) | 2004-01-16 |
KR100493021B1 KR100493021B1 (ko) | 2005-06-07 |
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Cited By (2)
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CN116568031A (zh) * | 2023-07-12 | 2023-08-08 | 长鑫存储技术有限公司 | 半导体结构及其制备方法 |
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US7445797B2 (en) * | 2005-03-14 | 2008-11-04 | Momentive Performance Materials Inc. | Enhanced boron nitride composition and polymer-based compositions made therewith |
US7976941B2 (en) * | 1999-08-31 | 2011-07-12 | Momentive Performance Materials Inc. | Boron nitride particles of spherical geometry and process for making thereof |
US6713088B2 (en) * | 1999-08-31 | 2004-03-30 | General Electric Company | Low viscosity filler composition of boron nitride particles of spherical geometry and process |
US6764975B1 (en) * | 2000-11-28 | 2004-07-20 | Saint-Gobain Ceramics & Plastics, Inc. | Method for making high thermal diffusivity boron nitride powders |
EP1397421B1 (en) * | 2001-04-30 | 2019-09-04 | Saint-Gobain Ceramics and Plastics, Inc. | Polymer processing aid and method for processing polymers |
US6645612B2 (en) | 2001-08-07 | 2003-11-11 | Saint-Gobain Ceramics & Plastics, Inc. | High solids hBN slurry, hBN paste, spherical hBN powder, and methods of making and using them |
KR100442885B1 (ko) * | 2002-11-01 | 2004-08-02 | 삼성전자주식회사 | 반도체 소자의 다중 두께 게이트 유전층 제조 방법 |
US7494635B2 (en) * | 2003-08-21 | 2009-02-24 | Saint-Gobain Ceramics & Plastics, Inc. | Boron nitride agglomerated powder |
US7091755B1 (en) * | 2004-09-17 | 2006-08-15 | Xilinx, Inc. | Low voltage input circuit with high voltage tolerance capability |
US7921400B1 (en) | 2005-07-20 | 2011-04-05 | Integrated Device Technology, Inc. | Method for forming integrated circuit device using cell library with soft error resistant logic cells |
US7524560B2 (en) * | 2005-08-19 | 2009-04-28 | Momentive Performance Materials Inc. | Enhanced boron nitride composition and compositions made therewith |
US7527859B2 (en) * | 2006-10-08 | 2009-05-05 | Momentive Performance Materials Inc. | Enhanced boron nitride composition and compositions made therewith |
KR101844058B1 (ko) | 2012-02-01 | 2018-03-30 | 에스케이하이닉스 주식회사 | 복층 금속 콘택을 포함하는 반도체 소자 |
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JPH0645614A (ja) * | 1992-07-27 | 1994-02-18 | Nec Corp | 読出し専用半導体メモリの製造方法 |
JPH10178102A (ja) * | 1996-12-18 | 1998-06-30 | Sony Corp | 半導体装置の製造方法 |
JPH10326837A (ja) * | 1997-03-25 | 1998-12-08 | Toshiba Corp | 半導体集積回路装置の製造方法、半導体集積回路装置、半導体装置、及び、半導体装置の製造方法 |
KR19990030770A (ko) * | 1997-10-06 | 1999-05-06 | 윤종용 | 비대칭 게이트 산화막 구조를 가지는 복합 반도체장치 및 그 제조 방법 |
US6268748B1 (en) * | 1998-05-06 | 2001-07-31 | International Business Machines Corp. | Module with low leakage driver circuits and method of operation |
JP2000077536A (ja) * | 1998-09-03 | 2000-03-14 | Hitachi Ltd | 半導体装置の製造方法 |
JP3746669B2 (ja) * | 2000-10-17 | 2006-02-15 | 株式会社ルネサステクノロジ | 半導体装置の製造方法 |
-
2002
- 2002-07-10 KR KR10-2002-0040091A patent/KR100493021B1/ko active IP Right Grant
-
2003
- 2003-04-23 US US10/421,240 patent/US6867445B2/en not_active Expired - Lifetime
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2005
- 2005-01-25 US US11/042,495 patent/US7498220B2/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7671831B2 (en) | 2006-01-13 | 2010-03-02 | Samsung Electronics Co., Ltd. | Output buffer with improved output deviation and source driver for flat panel display having the output buffer |
CN116568031A (zh) * | 2023-07-12 | 2023-08-08 | 长鑫存储技术有限公司 | 半导体结构及其制备方法 |
CN116568031B (zh) * | 2023-07-12 | 2023-11-17 | 长鑫存储技术有限公司 | 半导体结构及其制备方法 |
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US20040007764A1 (en) | 2004-01-15 |
US7498220B2 (en) | 2009-03-03 |
KR100493021B1 (ko) | 2005-06-07 |
US20050158951A1 (en) | 2005-07-21 |
US6867445B2 (en) | 2005-03-15 |
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