KR20020036148A - 2단 메탈콘택구조를 가진 반도체 메모리 장치 및 그제조방법 - Google Patents
2단 메탈콘택구조를 가진 반도체 메모리 장치 및 그제조방법 Download PDFInfo
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- KR20020036148A KR20020036148A KR1020000066171A KR20000066171A KR20020036148A KR 20020036148 A KR20020036148 A KR 20020036148A KR 1020000066171 A KR1020000066171 A KR 1020000066171A KR 20000066171 A KR20000066171 A KR 20000066171A KR 20020036148 A KR20020036148 A KR 20020036148A
- Authority
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- South Korea
- Prior art keywords
- metal contact
- bit line
- forming
- stud
- semiconductor substrate
- Prior art date
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 86
- 239000002184 metal Substances 0.000 title claims abstract description 86
- 239000004065 semiconductor Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title description 6
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 239000003990 capacitor Substances 0.000 claims abstract description 14
- 239000004020 conductor Substances 0.000 claims abstract description 14
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 8
- 238000005530 etching Methods 0.000 claims description 13
- 238000000151 deposition Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 15
- 238000009413 insulation Methods 0.000 abstract 10
- 239000010410 layer Substances 0.000 description 17
- 229920002120 photoresistant polymer Polymers 0.000 description 9
- 239000011229 interlayer Substances 0.000 description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 5
- 229910052721 tungsten Inorganic materials 0.000 description 5
- 239000010937 tungsten Substances 0.000 description 5
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 229920005591 polysilicon Polymers 0.000 description 4
- 238000000206 photolithography Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
Classifications
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- 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
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76802—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics
-
- 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
-
- 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
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76895—Local interconnects; Local pads, as exemplified by patent document EP0896365
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/5226—Via connections in a multilevel interconnection structure
-
- 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
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- 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
- H10B12/48—Data lines or contacts therefor
- H10B12/485—Bit line contacts
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (4)
- 비트라인과 메탈콘택용 중간패드를 포함하는 반도체 메모리 장치에 있어서,상기 비트라인과 상기 메탈콘택용 중간패드가 서로 다른 높이로 오버랩되지 않게 형성된 것을 특징으로 하는 2단 메탈콘택구조를 가진 반도체 메모리 장치.
- 제 1 항에 있어서, 상기 비트라인과 메탈콘택용 중간패드는비트라인 하층에 형성된 것을 특징으로 하는 2단 메탈 콘택구조를 가진 반도체 메모리 장치.
- 제 1 항에 있어서, 상기 메탈콘택용 중간패드는상부 면적이 콘택 면적보다 넓은 면적을 가진 것을 특징으로 하는 2단 메탈 콘택구조를 가진 반도체 메모리 장치.
- 반도체 기판 상에 게이트 전극을 형성하는 단계;게이트 전극이 형성된 반도체 기판 상에 표면이 평탄하게 제 1 절연막을 형성하는 단계;등방성식각 및 이방성식각을 연속적으로 진행하여 상기 제 1 절연막에 스터드 형성공간 및 1차 메탈 콘택홀을 형성하는 단계;상기 스터드 형성공간 및 1차 메탈 콘택홀에 도전물질을 채워서 스터드 및 1차 메탈콘택을 형성하는 단계;상기 스터드가 형성된 반도체 기판 상에 표면이 평탄하게 제 2 절연막을 형성하는 단계;상기 제 1 및 제 2 절연막에 비트라인 콘택홀을 형성하는 단계;상기 비트라인 콘택홀이 형성된 제 2 절연막 상에 비트라인을 형성하는 단계;상기 비트라인이 형성된 반도체 기판 상에 제 3 절연막을 형성하는 단계;상기 제 3 절연막층이 형성된 반도체 기판 상의 셀영역에 캐패시터를 형성하는 단계;상기 캐패시터가 형성된 반도체 기판 상에 제 4 절연막을 형성하는 단계;상기 스터드가 노출되도록 제 2 내지 4 절연막에 2차 메탈 콘택홀을 형성하는 단계; 및상기 제 4 절연막 상에 메탈을 증착하여 2차 메탈콘택홀 내에 2차 메탈 콘택을 형성하는 단계를 구비하는 것을 특징으로 하는 2단 메탈콘택 구조를 가진 반도체 메모리 장치의 제조방법.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2000-0066171A KR100386109B1 (ko) | 2000-11-08 | 2000-11-08 | 2단 메탈콘택구조를 가진 반도체 메모리 장치 및 그제조방법 |
TW090104132A TW493243B (en) | 2000-11-08 | 2001-02-23 | Semiconductor memory device having metal contact structure and method of manufacturing the same |
US09/838,355 US6683339B2 (en) | 2000-11-08 | 2001-04-19 | Semiconductor memory device having metal contact structure |
JP2001271943A JP2002158294A (ja) | 2000-11-08 | 2001-09-07 | メタルコンタクト構造を有した半導体メモリ装置およびその製造方法 |
US10/635,378 US6869872B2 (en) | 2000-11-08 | 2003-08-06 | Method of manufacturing a semiconductor memory device having a metal contact structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2000-0066171A KR100386109B1 (ko) | 2000-11-08 | 2000-11-08 | 2단 메탈콘택구조를 가진 반도체 메모리 장치 및 그제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20020036148A true KR20020036148A (ko) | 2002-05-16 |
KR100386109B1 KR100386109B1 (ko) | 2003-06-02 |
Family
ID=19697891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2000-0066171A KR100386109B1 (ko) | 2000-11-08 | 2000-11-08 | 2단 메탈콘택구조를 가진 반도체 메모리 장치 및 그제조방법 |
Country Status (4)
Country | Link |
---|---|
US (2) | US6683339B2 (ko) |
JP (1) | JP2002158294A (ko) |
KR (1) | KR100386109B1 (ko) |
TW (1) | TW493243B (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8268710B2 (en) | 2009-02-23 | 2012-09-18 | Samsung Electronics Co., Ltd. | Method for fabricating semiconductor devices |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7335955B2 (en) * | 2005-12-14 | 2008-02-26 | Freescale Semiconductor, Inc. | ESD protection for passive integrated devices |
KR100661217B1 (ko) * | 2005-12-29 | 2006-12-22 | 동부일렉트로닉스 주식회사 | 반도체 소자의 제조 방법 |
US7939445B1 (en) * | 2007-03-16 | 2011-05-10 | Marvell International Ltd. | High density via and metal interconnect structures, and methods of forming the same |
JP2009016596A (ja) | 2007-07-05 | 2009-01-22 | Elpida Memory Inc | 半導体装置及び半導体装置の製造方法 |
US7948094B2 (en) | 2007-10-22 | 2011-05-24 | Rohm Co., Ltd. | Semiconductor device |
US7701065B2 (en) * | 2007-10-26 | 2010-04-20 | Infineon Technologies Ag | Device including a semiconductor chip having a plurality of electrodes |
KR100944605B1 (ko) * | 2007-12-24 | 2010-02-25 | 주식회사 동부하이텍 | 반도체 소자 |
FR2935196B1 (fr) * | 2008-08-19 | 2011-03-18 | St Microelectronics Rousset | Circuit integre a dimensions reduites |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5573962A (en) * | 1995-12-15 | 1996-11-12 | Vanguard International Semiconductor Corporation | Low cycle time CMOS process |
SG54456A1 (en) * | 1996-01-12 | 1998-11-16 | Hitachi Ltd | Semconductor integrated circuit device and method for manufacturing the same |
US6238971B1 (en) * | 1997-02-11 | 2001-05-29 | Micron Technology, Inc. | Capacitor structures, DRAM cell structures, and integrated circuitry, and methods of forming capacitor structures, integrated circuitry and DRAM cell structures |
KR19990000025A (ko) * | 1997-06-02 | 1999-01-15 | 윤종용 | 반도체장치의 제조공정에서 단차부에 콘택을 형성하는 방법 |
KR19990015448A (ko) * | 1997-08-06 | 1999-03-05 | 윤종용 | 반도체 장치의 제조방법 |
KR20000008799A (ko) * | 1998-07-16 | 2000-02-15 | 윤종용 | 고집적 반도체 공정의 토폴로지 개선을 위한디램 구조 및 제조방법 |
US6037216A (en) * | 1998-11-02 | 2000-03-14 | Vanguard International Semiconductor Corporation | Method for simultaneously fabricating capacitor structures, for giga-bit DRAM cells, and peripheral interconnect structures, using a dual damascene process |
US6124199A (en) * | 1999-04-28 | 2000-09-26 | International Business Machines Corporation | Method for simultaneously forming a storage-capacitor electrode and interconnect |
US6365453B1 (en) * | 1999-06-16 | 2002-04-02 | Micron Technology, Inc. | Method and structure for reducing contact aspect ratios |
-
2000
- 2000-11-08 KR KR10-2000-0066171A patent/KR100386109B1/ko active IP Right Grant
-
2001
- 2001-02-23 TW TW090104132A patent/TW493243B/zh not_active IP Right Cessation
- 2001-04-19 US US09/838,355 patent/US6683339B2/en not_active Expired - Lifetime
- 2001-09-07 JP JP2001271943A patent/JP2002158294A/ja active Pending
-
2003
- 2003-08-06 US US10/635,378 patent/US6869872B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8268710B2 (en) | 2009-02-23 | 2012-09-18 | Samsung Electronics Co., Ltd. | Method for fabricating semiconductor devices |
Also Published As
Publication number | Publication date |
---|---|
US6683339B2 (en) | 2004-01-27 |
KR100386109B1 (ko) | 2003-06-02 |
TW493243B (en) | 2002-07-01 |
JP2002158294A (ja) | 2002-05-31 |
US20040026726A1 (en) | 2004-02-12 |
US6869872B2 (en) | 2005-03-22 |
US20020053686A1 (en) | 2002-05-09 |
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