KR100234382B1 - 반도체 메모리 장치의 평탄화 방법 - Google Patents
반도체 메모리 장치의 평탄화 방법 Download PDFInfo
- Publication number
- KR100234382B1 KR100234382B1 KR1019960029873A KR19960029873A KR100234382B1 KR 100234382 B1 KR100234382 B1 KR 100234382B1 KR 1019960029873 A KR1019960029873 A KR 1019960029873A KR 19960029873 A KR19960029873 A KR 19960029873A KR 100234382 B1 KR100234382 B1 KR 100234382B1
- Authority
- KR
- South Korea
- Prior art keywords
- etching
- interlayer insulating
- cell array
- peripheral circuit
- array region
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
-
- 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
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
- H01L21/31116—Etching inorganic layers by chemical means by dry-etching
-
- 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
Landscapes
- 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)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Semiconductor Memories (AREA)
- Drying Of Semiconductors (AREA)
Abstract
Description
Claims (7)
- 하나의 셀 커패시터와 하나의 트랜지스터로 이루어지는 메모리 셀이 2차원적으로 배열된 셀 어레이 영역 및 상기 메모리 셀을 구동시키기 위한 집적회로로 이루어지는 주변회로 영역을 구비하는 반도체 메모리 장치의 평탄화 방법에 있어서,상기 셀 어레이 영역과 주변회로 영역을 포함하여 반도체기판 전면에 층간절연막을 형성하는 단계; 및상기 층간 절연막을 소정 두께만큼 부분적으로 에치 백하여 이방성 식각함으로써 상기 셀 어레이 영역과 주변회로 영역의 경계에 형성된 표면단차에 따른 경사각을 완화하는 단계를 포함하는 것을 특징으로 하는 반도체 메모리 장치의 평탄화 방법.
- 제1항에 있어서, 상기 부분적 에치 백은 반응성 이온 식각에 의해 수행되고, 상기 층간 절연막의 모서리 부위와 측벽에 인접한 바닥 부위의 과도한 식각을 유발하는 이온들의 산란을 방지하기 위해 낮은 압력에서 수행하는 것을 특징으로 하는 반도체 메모리 장치의 평탄화 방법.
- 제2항에 있어서, 상기 압력은 100 mTorr 이하인 것을 특징으로 하는 반도체 메모리 장치의 평탄화 방법.
- 제2항에 있어서, 상기 부분적 에치 백은 식각 속도를 저하 시켜 식각 제어가 용이하도록 낮은 RF 파워로 수행하는 것을 특징으로 하는 반도체 메모리 장치의 평탄화 방법.
- 제4항에 있어서, 상기 RF 파워는 400W 이하인 것을 특징으로 하는 반도체 메모리 장치의 평탄화 방법.
- 제2항에 있어서, 상기 부분적 에치 백은 CxFy(x≥1), CHF3및 Ar의 혼합 가스를 이용하는 것을 특징으로 하는 반도체 메모리 장치의 평탄화 방법.
- 제1항에 있어서, 상기 부분적 에치 백은 플라즈마 식각, 반응성 이온 식각(RIE) 및 자기(磁氣) 반응성 이온 식각(MERIE) 방식중 어느하나로 수행하는 것을 특징으로 하는 반도체 메모리 장치의 평탄화 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960029873A KR100234382B1 (ko) | 1996-07-23 | 1996-07-23 | 반도체 메모리 장치의 평탄화 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960029873A KR100234382B1 (ko) | 1996-07-23 | 1996-07-23 | 반도체 메모리 장치의 평탄화 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR980012498A KR980012498A (ko) | 1998-04-30 |
KR100234382B1 true KR100234382B1 (ko) | 1999-12-15 |
Family
ID=19467228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960029873A Expired - Fee Related KR100234382B1 (ko) | 1996-07-23 | 1996-07-23 | 반도체 메모리 장치의 평탄화 방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100234382B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100443020B1 (ko) * | 1997-12-13 | 2004-09-18 | 삼성전자주식회사 | 표면 평탄화 기술을 이용한 반도체 소자 제조방법 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6587086B1 (en) * | 1999-10-26 | 2003-07-01 | Semiconductor Energy Laboratory Co., Ltd. | Electro-optical device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR950025980A (ko) * | 1994-02-07 | 1995-09-18 | 김주용 | 반도체 기억소자 제조 방법 |
-
1996
- 1996-07-23 KR KR1019960029873A patent/KR100234382B1/ko not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR950025980A (ko) * | 1994-02-07 | 1995-09-18 | 김주용 | 반도체 기억소자 제조 방법 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100443020B1 (ko) * | 1997-12-13 | 2004-09-18 | 삼성전자주식회사 | 표면 평탄화 기술을 이용한 반도체 소자 제조방법 |
Also Published As
Publication number | Publication date |
---|---|
KR980012498A (ko) | 1998-04-30 |
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