KR100275950B1 - 반도체장치의활성영역분리방법 - Google Patents
반도체장치의활성영역분리방법 Download PDFInfo
- Publication number
- KR100275950B1 KR100275950B1 KR1019980018287A KR19980018287A KR100275950B1 KR 100275950 B1 KR100275950 B1 KR 100275950B1 KR 1019980018287 A KR1019980018287 A KR 1019980018287A KR 19980018287 A KR19980018287 A KR 19980018287A KR 100275950 B1 KR100275950 B1 KR 100275950B1
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- South Korea
- Prior art keywords
- layer
- forming
- trench
- conductivity type
- epitaxial layer
- 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 - Lifetime
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000004065 semiconductor Substances 0.000 claims abstract description 34
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 238000002955 isolation Methods 0.000 claims abstract description 22
- 238000005530 etching Methods 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims 27
- 238000002161 passivation Methods 0.000 claims 1
- 239000011241 protective layer Substances 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 6
- 230000010354 integration Effects 0.000 abstract description 5
- 239000013078 crystal Substances 0.000 abstract description 4
- 230000003685 thermal hair damage Effects 0.000 abstract description 4
- 229920002120 photoresistant polymer Polymers 0.000 description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
- 229910052710 silicon Inorganic materials 0.000 description 8
- 239000010703 silicon Substances 0.000 description 8
- 238000009792 diffusion process Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005468 ion implantation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 101100234002 Drosophila melanogaster Shal gene Proteins 0.000 description 1
- 235000015076 Shorea robusta Nutrition 0.000 description 1
- 244000166071 Shorea robusta Species 0.000 description 1
- -1 boron ions Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D10/00—Bipolar junction transistors [BJT]
- H10D10/01—Manufacture or treatment
-
- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02293—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process formation of epitaxial layers by a deposition process
-
- 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
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/76202—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using a local oxidation of silicon, e.g. LOCOS, SWAMI, SILO
- H01L21/76205—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using a local oxidation of silicon, e.g. LOCOS, SWAMI, SILO in a region being recessed from the surface, e.g. in a recess, groove, tub or trench region
-
- 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
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D10/00—Bipolar junction transistors [BJT]
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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)
- Element Separation (AREA)
Abstract
Description
Claims (8)
- 반도체기판 위에 활성영역 분리층이 형성될 부위의 상기 반도체기판 표면을 노출시키는 트렌치가 형성된 제 1 희생층을 형성하는 단계와,상기 트렌치에 고농도로 도핑된 제 1 도전형 에피택샬층을 형성하는 단계와,상기 제 1 도전형 에피택샬층 위에 제 2 희생층을 형성하는 단계와,상기 제 1 희생층을 제거하여 상기 반도체기판 표면을 노출시키는 단계와,노출된 상기 반도체기판 표면에 제 2 도전형 에피택샬층을 상기 제 1 도전형 에피택샬층과 단차가 없도록 형성하는 단계와,상기 제 2 희생층을 제거하는 단계로 이루어진 반도체장치의 활성영역 분리 방법.
- 청구항 1에 있어서, 상기 제 1 희생층과 상기 제 2 희생층은 산화막으로 형성하는 것이 특징인 반도체장치의 소자격리방법.
- 청구항 1에 있어서, 상기 제 2 희생층을 형성하는 단계와 상기 반도체기판 표면을 노출시키는 단계는,상기 제 1 희생층 표면과 상기 제 1 도전형 에피택샬층 위에 상기 식각보호막을 형성하는 단계와,상기 제 1 도전형 에피택샬층 상부에 위치한 상기 식각보호막 위에 식각마스크를 형성하는 단계와,상기 식각마스크로 보호되지 아니하는 부위의 상기 식각보호막과 상기 제 1 희생층을 동시에 제거하는 단계와,상기 식각마스크를 제거하는 단계를 더 포함하여 이루어진 것이 특징인 반도체장치의 활성영역 분리방법.
- 청구항 1에 있어서, 상기 제 1 도전형은 p 형이고 상기 제 2 도전형은 n 형인 것이 특징인 반도체장치의 활성영역 분리방법.
- 반도체기판 위에 활성영역 분리층이 형성될 부위의 상기 반도체기판 표면을 노출시키는 트렌치가 형성된 제 2 도전형 에피택샬층을 형성하는 단계와,상기 트렌치 부위를 제외한 상기 제 2 도전형 에피택샬층 위에 보호막을 형성하는 단계와,상기 트렌치를 매립하는 고농도의 제 1 도전형 에피택샬층을 상기 제 2 도전형 에피택샬층과 단차가 없도록 형성하는 단계와,상기 보호막을 제거하는 단계로 이루어진 반도체장치의 활성영역 분리방법.
- 청구항 5에 있어서, 상기 보호막은 상기 트렌치 형성용 식각마스크의 일부를 상기 제 2 도전형 에피택샬층 위에 잔류시켜 형성하는 것이 특징인 반도체장치의 활성영역 분리방법.
- 청구항 6에 있어서, 상기 식각마스크는 산화막으로 형성하는 것이 특징인 반도체장치의 활성영역 분리방법.
- 청구항 5에 있어서, 상기 제 1 도전형은 p 형이고 상기 제 2 도전형은 n 형인 것이 특징인 반도체장치의 활성영역 분리방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980018287A KR100275950B1 (ko) | 1998-05-21 | 1998-05-21 | 반도체장치의활성영역분리방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980018287A KR100275950B1 (ko) | 1998-05-21 | 1998-05-21 | 반도체장치의활성영역분리방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19990085708A KR19990085708A (ko) | 1999-12-15 |
KR100275950B1 true KR100275950B1 (ko) | 2001-01-15 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019980018287A Expired - Lifetime KR100275950B1 (ko) | 1998-05-21 | 1998-05-21 | 반도체장치의활성영역분리방법 |
Country Status (1)
Country | Link |
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KR (1) | KR100275950B1 (ko) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05343320A (ja) * | 1992-06-11 | 1993-12-24 | Rohm Co Ltd | Soi構造の製造方法 |
-
1998
- 1998-05-21 KR KR1019980018287A patent/KR100275950B1/ko not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05343320A (ja) * | 1992-06-11 | 1993-12-24 | Rohm Co Ltd | Soi構造の製造方法 |
Also Published As
Publication number | Publication date |
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KR19990085708A (ko) | 1999-12-15 |
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