KR0183995B1 - 메모리 소자의 캐패시터 셀 제조방법 - Google Patents
메모리 소자의 캐패시터 셀 제조방법 Download PDFInfo
- Publication number
- KR0183995B1 KR0183995B1 KR1019910023618A KR910023618A KR0183995B1 KR 0183995 B1 KR0183995 B1 KR 0183995B1 KR 1019910023618 A KR1019910023618 A KR 1019910023618A KR 910023618 A KR910023618 A KR 910023618A KR 0183995 B1 KR0183995 B1 KR 0183995B1
- Authority
- KR
- South Korea
- Prior art keywords
- polysilicon
- node
- nitride film
- depositing
- film
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 32
- 229920005591 polysilicon Polymers 0.000 claims abstract description 32
- 150000004767 nitrides Chemical class 0.000 claims abstract description 23
- 238000000151 deposition Methods 0.000 claims abstract description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 6
- 239000010703 silicon Substances 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims abstract description 5
- 238000005530 etching Methods 0.000 claims abstract 7
- 238000001039 wet etching Methods 0.000 claims abstract 2
- 238000000034 method Methods 0.000 abstract description 7
- 230000010354 integration Effects 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3215—Doping the layers
- H01L21/32155—Doping polycristalline - or amorphous silicon layers
-
- 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
- H10B12/036—Making the capacitor or connections thereto the capacitor extending under the transistor
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)
- Semiconductor Memories (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims (1)
- 메모리 소자의 캐패시터 셀 제조방법에 있어서, 실리콘기판에 워드라인 및 비트라인을 형성하고, 그 위에 제1질화막 및 산화막을 차례로 데포지션시키는 단계(a)와, 노드 콘택을 형성하고, 제1노드 폴리실리콘을 데포지션시킨 뒤 비트라인 상부와 필드산화막 위에 게이트 상부의 제1노드 폴리실리콘을 식각하고, 산화막을 데포지션하여 평탄화시키며, 제2질화막을 데포지션하는 단계(b)와, 마스크를 사용하여 노드 콘택 상부의 제2질화막을 에치하고, 폴리실리콘을 데포지션하고 에치백하여 폴리실리콘 사이드월을 형성하는 단계(c)와, 폴리실리콘 사이드월과 제2질화막을 마스크로하여 노드 콘택상부의 산화막을 에치하며, 제2노드용 폴리실리콘을 제2질화막 위까지 데포지션하며, 제2질화막 상부의 제2노드 폴리실리콘을 일부식각한 후 제2질화막, 산화막들을 습식식각하는 단계(d)와, 제1 및 제2노드를 폴리실리콘 표면에 유전체막을 입히고 플레이트를 형성하는 단계(e)를 포함하는 것을 특징으로 하는 메모리 소자의 캐패시터 셀 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019910023618A KR0183995B1 (ko) | 1991-12-20 | 1991-12-20 | 메모리 소자의 캐패시터 셀 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019910023618A KR0183995B1 (ko) | 1991-12-20 | 1991-12-20 | 메모리 소자의 캐패시터 셀 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR930014975A KR930014975A (ko) | 1993-07-23 |
KR0183995B1 true KR0183995B1 (ko) | 1999-03-20 |
Family
ID=19325319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019910023618A KR0183995B1 (ko) | 1991-12-20 | 1991-12-20 | 메모리 소자의 캐패시터 셀 제조방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0183995B1 (ko) |
-
1991
- 1991-12-20 KR KR1019910023618A patent/KR0183995B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR930014975A (ko) | 1993-07-23 |
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