KR100277080B1 - 다이나믹랜덤억세스메모리장치및그제조방법 - Google Patents
다이나믹랜덤억세스메모리장치및그제조방법 Download PDFInfo
- Publication number
- KR100277080B1 KR100277080B1 KR1019970075999A KR19970075999A KR100277080B1 KR 100277080 B1 KR100277080 B1 KR 100277080B1 KR 1019970075999 A KR1019970075999 A KR 1019970075999A KR 19970075999 A KR19970075999 A KR 19970075999A KR 100277080 B1 KR100277080 B1 KR 100277080B1
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- KR
- South Korea
- Prior art keywords
- bit line
- interlayer insulating
- insulating film
- capacitor
- transistor
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 67
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000011229 interlayer Substances 0.000 claims abstract description 63
- 239000003990 capacitor Substances 0.000 claims abstract description 42
- 239000000758 substrate Substances 0.000 claims abstract description 39
- 239000010410 layer Substances 0.000 claims abstract description 34
- 238000003860 storage Methods 0.000 claims abstract description 28
- 239000004065 semiconductor Substances 0.000 claims abstract description 24
- 238000005498 polishing Methods 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 7
- 238000005530 etching Methods 0.000 claims description 4
- 238000009751 slip forming Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000011810 insulating material Substances 0.000 description 5
- 239000005380 borophosphosilicate glass Substances 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 238000000206 photolithography Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Images
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
- H10B12/033—Making the capacitor or connections thereto the capacitor extending over the transistor
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/31051—Planarisation of the insulating layers
- H01L21/31053—Planarisation of the insulating layers involving a dielectric removal step
-
- 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
- H01L21/76819—Smoothing of the dielectric
-
- 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
- H10B12/30—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells
- H10B12/31—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells having a storage electrode stacked over the transistor
- H10B12/315—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells having a storage electrode stacked over the transistor with the capacitor higher than a bit line
-
- 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
- H10B12/482—Bit lines
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Semiconductor Memories (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (4)
- 비트라인의 상부에 캐패시터가 형성되는 구조를 갖는 반도체 메모리 장치에 있어서,반도체 기판의 상부에 게이트 절연막을 개재하여 형성된 게이트 전극과, 상기 게이트 전극에 의해 서로 이격되어 상기 기판의 표면에 형성된 소오스 및 드레인 영역으로 구성된 트랜지스터와;상기 트랜지스터를 포함한 기판의 상부에 연속적으로 제1층간 절연막 및 비트라인이 형성되며, 상기 제1층간 절연막의 상부에 상기 트랜지스터의 드레인과 상기 비트라인을 접속시키기 위하여 형성된 콘택과;상기 비트라인을 포함한 기판의 상부에 형성되고, 상기 비트라인과 캐패시터의 스토리지 노드를 절연시키기 위한 제2층간 절연막을 구비하며, 상기 제2층간 절연막의 표면은 상기 비트라인을 포함한 기판의 표면과 실질적으로 평행을 이루도록 화학 기계적 연마(CMP) 방법에 의해 평탄화하고, 그 상부에 절연막이 형성된 것을 특징으로 하는 반도체 메모리 장치.
- 비트라인의 상부에 캐패시터가 형성되는 구조를 갖는 반도체 메모리 장치의 제조 방법에 있어서,반도체 기판의 상부에 게이트, 소오스 및 드레인으로 구성된 트랜지스터를 형성하는 단계와;상기 트랜지스터가 형성된 기판의 상부에 제1층간 절연막을 형성하는 단계;상기 제1층간 절연막의 상부에 비트라인을 형성하는 단계와;상기 비트라인이 형성된 기판의 상부에 비트라인과 캐패시터의 스토리지 노드를 절연시키기 위한 제2층간 절연막을 형성하는 단계; 및상기 화학 기계적 연마(CMP) 방법에 의해 상기 제2층간 절연막의 표면을 평탄화시키는 단계 후, 상기 결과물의 상부에 절연막을 형성하는 단계를 구비하는 것을 특징으로 하는 반도체 메모리 장치의 제조 방법.
- 제2항에 있어서, 상기 화학 기계적 연마(CMP) 방법에 의해 상기 제2층간 절연막의 표면을 평탄화시키는 단계에서, 상기 CMP 방법은 상기 비트라인의 표면이 노출될 때까지 실시하는 것을 특징으로 하는 반도체 메모리 장치의 제조 방법.
- 제2항에 있어서, 상기 비트라인을 형성하는 단계 전에, 상기 제1층간 절연막을 식각하여 상기 트랜지스터의 드레인을 노출시키는 콘택을 형성하는 단계를 더 구비하는 것을 특징으로 하는 반도체 메모리 장치의 제조 방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970075999A KR100277080B1 (ko) | 1997-12-29 | 1997-12-29 | 다이나믹랜덤억세스메모리장치및그제조방법 |
US09/395,291 US6271124B1 (en) | 1997-12-29 | 1999-09-13 | Method of making a dynamic random access memory device utilizing chemical mechanical polishing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970075999A KR100277080B1 (ko) | 1997-12-29 | 1997-12-29 | 다이나믹랜덤억세스메모리장치및그제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19990056023A KR19990056023A (ko) | 1999-07-15 |
KR100277080B1 true KR100277080B1 (ko) | 2001-04-02 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1019970075999A KR100277080B1 (ko) | 1997-12-29 | 1997-12-29 | 다이나믹랜덤억세스메모리장치및그제조방법 |
Country Status (2)
Country | Link |
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US (1) | US6271124B1 (ko) |
KR (1) | KR100277080B1 (ko) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100470165B1 (ko) | 1999-06-28 | 2005-02-07 | 주식회사 하이닉스반도체 | 반도체소자 제조 방법 |
KR100651591B1 (ko) * | 2005-12-28 | 2006-11-30 | 동부일렉트로닉스 주식회사 | 자기 메모리 소자에서 얇은 절연층 형성 방법 |
KR20080061022A (ko) * | 2006-12-27 | 2008-07-02 | 동부일렉트로닉스 주식회사 | 플래시 메모리 소자의 제조 방법 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR970013212A (ko) * | 1995-08-12 | 1997-03-29 | 문정환 | 반도체 소자의 배선구조 및 그 제조방법 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5627094A (en) * | 1995-12-04 | 1997-05-06 | Chartered Semiconductor Manufacturing Pte, Ltd. | Stacked container capacitor using chemical mechanical polishing |
JP2930016B2 (ja) * | 1996-07-04 | 1999-08-03 | 日本電気株式会社 | 半導体装置の製造方法 |
TW320761B (en) * | 1996-10-03 | 1997-11-21 | Mos Electronics Taiwan Inc | Manufacturing method of high density DRAM with cylindrical stack capacitor |
US6071773A (en) * | 1998-10-05 | 2000-06-06 | Taiwan Semiconductor Manufacturing Company | Process for fabricating a DRAM metal capacitor structure for use in an integrated circuit |
-
1997
- 1997-12-29 KR KR1019970075999A patent/KR100277080B1/ko active IP Right Grant
-
1999
- 1999-09-13 US US09/395,291 patent/US6271124B1/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR970013212A (ko) * | 1995-08-12 | 1997-03-29 | 문정환 | 반도체 소자의 배선구조 및 그 제조방법 |
Also Published As
Publication number | Publication date |
---|---|
KR19990056023A (ko) | 1999-07-15 |
US6271124B1 (en) | 2001-08-07 |
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