KR100252900B1 - 반도체 메모리 장치의 제조방법 - Google Patents
반도체 메모리 장치의 제조방법 Download PDFInfo
- Publication number
- KR100252900B1 KR100252900B1 KR1019980006392A KR19980006392A KR100252900B1 KR 100252900 B1 KR100252900 B1 KR 100252900B1 KR 1019980006392 A KR1019980006392 A KR 1019980006392A KR 19980006392 A KR19980006392 A KR 19980006392A KR 100252900 B1 KR100252900 B1 KR 100252900B1
- Authority
- KR
- South Korea
- Prior art keywords
- contact hole
- node contact
- node
- polysilicon layer
- film
- 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
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 28
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 43
- 229920005591 polysilicon Polymers 0.000 claims abstract description 43
- 229920002120 photoresistant polymer Polymers 0.000 claims abstract description 24
- 238000005530 etching Methods 0.000 claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 238000000059 patterning Methods 0.000 claims abstract description 7
- 239000003990 capacitor Substances 0.000 abstract description 11
- 238000001039 wet etching Methods 0.000 abstract description 6
- 230000000873 masking effect Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 6
- 150000004767 nitrides Chemical class 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D1/00—Resistors, capacitors or inductors
- H10D1/01—Manufacture or treatment
- H10D1/041—Manufacture or treatment of capacitors having no potential barriers
- H10D1/042—Manufacture or treatment of capacitors having no potential barriers using deposition processes to form electrode extensions
-
- 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
- H01L21/02—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
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32133—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only
- H01L21/32135—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only
-
- 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
- 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
- H10B12/318—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells having a storage electrode stacked over the transistor the storage electrode having multiple segments
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Inorganic Chemistry (AREA)
- Semiconductor Memories (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (4)
- 반도체 기판상에 제 1 절연막과 감광막을 형성하는 단계; 노드 콘택홀 영역을 정의하여 노드 콘택홀 영역의 상기 감광막을 선택적으로 패터닝하는 단계; 상기 패터닝된 감광막을 마스크로 이용한 식각공정으로 상기 제 1 절연막을 선택적으로 제거하여 복수개의 제 1 노드 콘택홀을 형성하는 단계; 상기 제 1 노드 콘택홀을 포함한 상기 제 1 절연막상에 제 1 폴리실리콘층과 제 2 절연막을 차례로 형성하는 단계; 상기 노드 콘택홀 영역과 동일한 위치의 상기 제 2 절연막; 제 1 폴리실리콘층 및 제 1 절연막을 선택적으로 패터닝하여 제 2 노드 콘택홀을 형성하는 단계; 상기 제 2 노드 콘택홀을 포함한 상기 제 2 절연막상에 제 2 폴리실리콘층을 형성하는 단계; 스토리지 노드 영역을 정의하여 스토리지 노드 영역에만 남도록 상기 제 2 폴리실리콘층, 제 2 절연막 및 제 1 폴리실리콘층을 선택적으로 제거하여 스토리지 노드를 형성하는 단계; 상기 제 2 절연막을 제거하는 단계; 상기 스토리지 노드 표면에 유전막과 상기 유전막 전면에 플레이트 전극을 형성하는 단계를 포함하여 이루어지는 것을 특징으로 하는 반도체 메모리 장치의 제조방법.
- 제1항에 있어서, 상기 제 2 노드 콘택홀의 식각은 상기 제 1 노드 콘택홀이 형성되지 않은 부분의 상기 제 2 절연막, 제 1 폴리실리콘층 및 제 1 절연막을 식각하여 상기 반도체기판이 노출될 정도의 식각조건을 기준으로 하여 형성하는 것을 특징으로 하는 반도체 메모리 장치의 제조방법.
- 제1항 또는 제2항에 있어서, 상기 제 1 노드 콘택홀 형성시 노광불량으로 제 1 노드 콘택홀이 형성되지 않은 부분에서의 제 2 노드 콘택홀의 깊이와, 상기 제 1 노드 콘택홀이 형성된 부분에서의 식각깊이가 다른 것을 특징으로 하는 반도체 메모리 장치의 제조방법.
- 제2항에 있어서, 상기 식각조건은 CF4가스를 이용한 식각공정을 포함하는 것을 특징으로 하는 반도체 메모리 장치의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980006392A KR100252900B1 (ko) | 1998-02-27 | 1998-02-27 | 반도체 메모리 장치의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980006392A KR100252900B1 (ko) | 1998-02-27 | 1998-02-27 | 반도체 메모리 장치의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19990071126A KR19990071126A (ko) | 1999-09-15 |
KR100252900B1 true KR100252900B1 (ko) | 2000-04-15 |
Family
ID=19533919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019980006392A Expired - Fee Related KR100252900B1 (ko) | 1998-02-27 | 1998-02-27 | 반도체 메모리 장치의 제조방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100252900B1 (ko) |
-
1998
- 1998-02-27 KR KR1019980006392A patent/KR100252900B1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR19990071126A (ko) | 1999-09-15 |
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