KR100546210B1 - 반도체 소자의 비트라인 콘택 형성방법 - Google Patents
반도체 소자의 비트라인 콘택 형성방법 Download PDFInfo
- Publication number
- KR100546210B1 KR100546210B1 KR1020030060582A KR20030060582A KR100546210B1 KR 100546210 B1 KR100546210 B1 KR 100546210B1 KR 1020030060582 A KR1020030060582 A KR 1020030060582A KR 20030060582 A KR20030060582 A KR 20030060582A KR 100546210 B1 KR100546210 B1 KR 100546210B1
- Authority
- KR
- South Korea
- Prior art keywords
- contact
- bit line
- contact hole
- forming
- photoresist pattern
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000004065 semiconductor Substances 0.000 title claims abstract description 19
- 230000015572 biosynthetic process Effects 0.000 title abstract description 3
- 229920002120 photoresistant polymer Polymers 0.000 claims abstract description 30
- 239000004020 conductor Substances 0.000 claims abstract description 12
- 239000012535 impurity Substances 0.000 claims abstract description 12
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 238000005530 etching Methods 0.000 claims abstract description 10
- 238000000059 patterning Methods 0.000 claims abstract description 3
- 238000005259 measurement Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 9
- 239000003990 capacitor Substances 0.000 description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 229920005591 polysilicon Polymers 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007261 regionalization Effects 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
- H10B12/30—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
- 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
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
- H01L21/0273—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers characterised by the treatment of photoresist layers
-
- 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
- H01L21/76838—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 conductors
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
-
- 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
- H01L21/76897—Formation of self-aligned vias or contact plugs, i.e. involving a lithographically uncritical step
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
노광 에너지(J/㎡) | 콘택홀과 콘택플러그 간에 형성된 단차(Å) |
310 | 600 |
295 | 700 |
275 | 800 |
265 | 900 |
257 | 1000 |
Claims (2)
- 불순물 접합층이 구비된 반도체 기판에 절연막을 형성하고, 상기 절연막을 패터닝하여 상기 불순물 접합층을 노출하는 콘택홀을 형성하는 단계와,상기 콘택홀에 도전물질을 형성한 후 블랭크 식각 공정을 진행하여 상기 콘택홀과 표면 단차를 가진, 상기 불순물 접합층과 접촉하는 콘택 플러그를 형성하는 단계와,상기 콘택 플러그가 형성된 결과물에 제2 절연막을 형성하는 단계와,상기 콘택 플러그 형성 공정시 발생된 콘택홀과 콘택 플러그간의 표면단차를 측정한 후, 상기 제2 절연막 상에 상기 콘택 플러그를 노출하는 비트라인 콘택홀을 정의하는 포토레지스트 패턴을 형성하는 단계와,상기 포토레지스트 패턴을 식각마스크로 식각공정을 수행하여 비트라인 콘택홀을 형성하는 단계와,상기 비트라인 콘택홀에 도전물질을 매립하여 비트라인 콘택을 형성하는 단계를 포함하는 반도체소자의 비트라인 콘택 형성방법.
- 제1 항에 있어서, 상기 콘택 플러그 형성 공정시 발생된 콘택홀과 콘택 플러그간의 표면단차 측정은상기 포토레지스트 패턴의 형성을 위한 노광 공정의 노광에너지를 통해 수행하는 것을 특징으로 하는 반도체소자의 비트라인 콘택 형성방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030060582A KR100546210B1 (ko) | 2003-08-30 | 2003-08-30 | 반도체 소자의 비트라인 콘택 형성방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030060582A KR100546210B1 (ko) | 2003-08-30 | 2003-08-30 | 반도체 소자의 비트라인 콘택 형성방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20050022389A KR20050022389A (ko) | 2005-03-08 |
KR100546210B1 true KR100546210B1 (ko) | 2006-01-24 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020030060582A KR100546210B1 (ko) | 2003-08-30 | 2003-08-30 | 반도체 소자의 비트라인 콘택 형성방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100546210B1 (ko) |
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2003
- 2003-08-30 KR KR1020030060582A patent/KR100546210B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
KR20050022389A (ko) | 2005-03-08 |
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