KR20000027633A - 반도체소자의 캐패시터 형성방법 - Google Patents
반도체소자의 캐패시터 형성방법 Download PDFInfo
- Publication number
- KR20000027633A KR20000027633A KR1019980045588A KR19980045588A KR20000027633A KR 20000027633 A KR20000027633 A KR 20000027633A KR 1019980045588 A KR1019980045588 A KR 1019980045588A KR 19980045588 A KR19980045588 A KR 19980045588A KR 20000027633 A KR20000027633 A KR 20000027633A
- Authority
- KR
- South Korea
- Prior art keywords
- forming
- insulating film
- interlayer insulating
- film
- entire surface
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000004065 semiconductor Substances 0.000 title claims abstract description 23
- 239000003990 capacitor Substances 0.000 title claims abstract description 19
- 238000003860 storage Methods 0.000 claims abstract description 12
- 239000011229 interlayer Substances 0.000 claims description 37
- 239000010410 layer Substances 0.000 claims description 32
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 20
- 229920002120 photoresistant polymer Polymers 0.000 claims description 13
- 238000005530 etching Methods 0.000 claims description 12
- 229920005591 polysilicon Polymers 0.000 claims description 8
- 239000005380 borophosphosilicate glass Substances 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 5
- 238000001039 wet etching Methods 0.000 claims description 4
- 150000004767 nitrides Chemical class 0.000 claims description 3
- 230000005669 field effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 125000006850 spacer group Chemical class 0.000 abstract description 5
- 239000010408 film Substances 0.000 description 46
- 230000007423 decrease Effects 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000018109 developmental process Effects 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
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000007261 regionalization Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010409 thin film Substances 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
- H10B12/30—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells
- H10B12/48—Data lines or contacts therefor
- H10B12/485—Bit line contacts
-
- 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
- H10B12/48—Data lines or contacts therefor
- H10B12/482—Bit lines
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Semiconductor Memories (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (4)
- 모스 전계효과 트랜지스터를 구비하는 반도체기판 상부에 전하저장전극 콘택과 비트라인 콘택이 구비된 제1층간절연막을 형성하는 공정과,상기 전하저장전극 콘택을 노출시키는 희생산화막을 형성하는 공정과,전체표면 상부에 유전막과 제2다결정실리콘층을 형성하여 캐패시터를 형성하고, 전체표면 상부에 제2층간절연막을 형성하는 공정과,상기 제2층간절연막을 전면식각하여 상기 다결정실리콘층을 노출시킨 후, 상기 제2층간절연막과 희생산화막 사이의 다결정실리콘층을 습식식각하는 공정과,전체표면 상부에 상기 다결정실리콘층이 제거된 부분을 통하여 상기 제1층간절연막과 접속되는 제3층간절연막을 형성한 후, 전면식각하는 공정과,전체표면 상부에 제4층간절연막을 형성하는 공정과,상기 제4층간절연막 상부에 비트라인으로 예정되는 부분을 노출시키는 감광막 패턴을 형성하는 공정과,상기 감광막 패턴을 식각마스크로 사용하여 상기 제4층간절연막과 희생산화막을 제거한 다음, 상기 비트라인 콘택과 접속되는 비트라인을 형성하는 공정을 포함하는 반도체소자의 캐패시터 형성방법.
- 제 1 항에 있어서,상기 제1층간절연막과 제3층간절연막은 질화막을 사용하여 형성하는 것을 특징으로 하는 반도체소자의 캐패시터 형성방법.
- 제 1 항에 있어서,상기 희생산화막은 BPSG나 O3-TEOS를 사용하여 형성하는 것을 특징으로 하는 반도체소자의 캐패시터 형성방법.
- 제 1 항에 있어서,상기 다결정실리콘층은 NH4OH를 이용한 습식식각방법으로 제거하는 것을 특징으로 하는 반도체소자의 캐패시터 형성방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980045588A KR100337204B1 (ko) | 1998-10-28 | 1998-10-28 | 반도체소자의형성방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980045588A KR100337204B1 (ko) | 1998-10-28 | 1998-10-28 | 반도체소자의형성방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20000027633A true KR20000027633A (ko) | 2000-05-15 |
KR100337204B1 KR100337204B1 (ko) | 2002-10-25 |
Family
ID=19555967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019980045588A KR100337204B1 (ko) | 1998-10-28 | 1998-10-28 | 반도체소자의형성방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100337204B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100576825B1 (ko) * | 2003-12-02 | 2006-05-10 | 삼성전자주식회사 | 캐패시터 콘택 플러그들 사이의 층간절연막 내에 분리패턴을 구비하는 반도체 소자 및 그 제조 방법들 |
-
1998
- 1998-10-28 KR KR1019980045588A patent/KR100337204B1/ko not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100576825B1 (ko) * | 2003-12-02 | 2006-05-10 | 삼성전자주식회사 | 캐패시터 콘택 플러그들 사이의 층간절연막 내에 분리패턴을 구비하는 반도체 소자 및 그 제조 방법들 |
Also Published As
Publication number | Publication date |
---|---|
KR100337204B1 (ko) | 2002-10-25 |
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