KR101044778B1 - 비대칭 고전압 트랜지스터 및 그 제조방법 - Google Patents
비대칭 고전압 트랜지스터 및 그 제조방법 Download PDFInfo
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- KR101044778B1 KR101044778B1 KR1020040018959A KR20040018959A KR101044778B1 KR 101044778 B1 KR101044778 B1 KR 101044778B1 KR 1020040018959 A KR1020040018959 A KR 1020040018959A KR 20040018959 A KR20040018959 A KR 20040018959A KR 101044778 B1 KR101044778 B1 KR 101044778B1
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- oxide film
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- 238000000034 method Methods 0.000 title claims description 15
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000000758 substrate Substances 0.000 claims abstract description 31
- 239000004065 semiconductor Substances 0.000 claims abstract description 18
- 230000002265 prevention Effects 0.000 claims abstract description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 25
- 229910052710 silicon Inorganic materials 0.000 claims description 25
- 239000010703 silicon Substances 0.000 claims description 25
- 238000005530 etching Methods 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000000151 deposition Methods 0.000 claims description 6
- 150000002500 ions Chemical class 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 2
- 230000015556 catabolic process Effects 0.000 abstract description 32
- 230000004888 barrier function Effects 0.000 abstract 1
- 238000005468 ion implantation Methods 0.000 description 7
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 7
- 229920005591 polysilicon Polymers 0.000 description 7
- 229920002120 photoresistant polymer Polymers 0.000 description 5
- 239000002019 doping agent Substances 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000005380 borophosphosilicate glass Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/7833—Field effect transistors with field effect produced by an insulated gate with lightly doped drain or source extension, e.g. LDD MOSFET's; DDD MOSFET's
- H01L29/7835—Field effect transistors with field effect produced by an insulated gate with lightly doped drain or source extension, e.g. LDD MOSFET's; DDD MOSFET's with asymmetrical source and drain regions, e.g. lateral high-voltage MISFETs with drain offset region, extended drain MISFETs
-
- 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
- H01L21/76801—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 dielectrics, e.g. smoothing
- H01L21/76822—Modification of the material of dielectric layers, e.g. grading, after-treatment to improve the stability of the layers, to increase their density etc.
- H01L21/76825—Modification of the material of dielectric layers, e.g. grading, after-treatment to improve the stability of the layers, to increase their density etc. by exposing the layer to particle radiation, e.g. ion implantation, irradiation with UV light or electrons etc.
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- 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
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/822—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/823481—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type isolation region manufacturing related aspects, e.g. to avoid interaction of isolation region with adjacent structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66568—Lateral single gate silicon transistors
- H01L29/66659—Lateral single gate silicon transistors with asymmetry in the channel direction, e.g. lateral high-voltage MISFETs with drain offset region, extended drain MISFETs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/7833—Field effect transistors with field effect produced by an insulated gate with lightly doped drain or source extension, e.g. LDD MOSFET's; DDD MOSFET's
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Plasma & Fusion (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
Claims (9)
- 소정의 하부 구조가 형성된 반도체 기판 위에 적층되는 게이트 산화막과, 상기 게이트 산화막 위에 적층되는 게이트 전극을 포함하되, 상기 게이트 산화막은 일단 측의 소정 영역에서 타단 측의 나머지 영역보다 두껍게 형성되는 게이트;상기 게이트 산화막이 두껍게 형성되지 않은 타단 측에서 상기 게이트에 인접하는 반도체 기판 내에 형성되는 소오스 영역;상기 게이트 산화막이 두껍게 형성된 일단 측에서 상기 게이트에 인접하는 반도체 기판 내에 형성되되, 그 상부면이 상기 소오스 영역의 상부면보다 소정 높이만큼 낮게 형성되는 드레인 영역;상기 소오스 영역과 드레인 영역 사이에 위치하도록 상기 게이트 하부의 반도체 기판내에 형성되되, 상기 게이트의 하부 방향으로 소정 거리만큼 이격되어 형성되는 펀치쓰루 방지막을 포함하는 비대칭 고전압 트랜지스터.
- 제 1 항에 있어서,상기 드레인 영역은 저농도 도핑 영역이 고농도 도핑 영역을 둘러싸는 DDD 구조로 형성되는 비대칭 고전압 트랜지스터.
- 제 1 항 또는 제 2 항에 있어서,상기 게이트 전극의 양 측벽 및 소오스 영역 측의 게이트 전극 상부의 소정 영역에는 산화막이 형성되는 비대칭 고전압 트랜지스터.
- 제 1 항 또는 제 2 항에 있어서,상기 펀치쓰루 방지막은 산화막으로 형성되는 비대칭 고전압 트랜지스터.
- 반도체 기판을 소정 깊이로 식각하고 산화막을 증착한후 상기 산화막을 에치백하여 펀치쓰루 방지막을 형성하는 1 단계;상기 1 단계의 결과물 전면에 소정 두께의 실리콘을 형성한 후 그 위에 버퍼산화막을 형성하고 문턱전압 조절 이온주입하는 2 단계;상기 2 단계의 결과물에서 드레인 정션 형성 영역에 저농도 도핑 영역을 형성하는 3 단계;상기 3 단계의 결과물 전면에 제 1 게이트 산화막을 형성하고, 상기 제 1 게이트 산화막에서 드레인단 측 영역 이외의 부분을 제거한 후, 그 위에 제 2 게이트 산화막을 형성하는 4 단계;상기 제 2 게이트 산화막 상에 게이트 전극을 형성하는 5 단계;상기 5 단계의 결과물에서 소오스 정션 형성 영역에 저농도 도핑 영역을 형성하는 6 단계;상기 6 단계의 결과물에 산화막을 증착한 후, 상기 산화막 및 제 1, 제 2 게이트 산화막을 식각하는 7 단계;상기 드레인 정션의 상부 및 게이트의 드레인단 측 상부를 식각하는 8 단계;상기 소오스 정션 형성 영역과 상기 드레인 정션 형성 영역에 고농도 도핑 영역을 형성하는 9 단계를 포함하는 비대칭 고전압 트랜지스터의 제조방법.
- 제 5 항에 있어서,상기 펀치쓰루 방지막은 채널 영역과 격리되어 형성되는 것을 특징으로 하는 비대칭 고전압 트랜지스터의 제조방법.
- 제 5 항에 있어서,상기 1단계의 결과물 전면에 성장시키는 실리콘은 반도체 기판과 동일한 정도로 도핑된 것임을 특징으로 하는 비대칭 고전압 트랜지스터의 제조방법.
- 제 5 항에 있어서,상기 2 단계에서 반도체 기판 상에 실리콘을 증착하기 전에 클리닝 공정을 더 포함하는 것을 특징으로 하는 비대칭 고전압 트랜지스터의 제조방법.
- 제 5 항에 있어서,상기 7 단계에서 산화막이 식각된 이후에, 게이트 전극 측벽 및 게이트 전극 상부에 산화막이 남게 되는 것을 특징으로 하는 비대칭 고전압 트랜지스터의 제조방법.
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KR1020040018959A KR101044778B1 (ko) | 2004-03-19 | 2004-03-19 | 비대칭 고전압 트랜지스터 및 그 제조방법 |
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KR20050093487A KR20050093487A (ko) | 2005-09-23 |
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KR100770539B1 (ko) * | 2006-08-11 | 2007-10-25 | 동부일렉트로닉스 주식회사 | 반도체 소자 및 그 제조 방법 |
KR100851216B1 (ko) * | 2007-06-12 | 2008-08-07 | 주식회사 동부하이텍 | 파워소자의 게이트 옥사이드 형성구조 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08222727A (ja) * | 1994-11-30 | 1996-08-30 | At & T Corp | 高電圧横方向デバイスのための効率的面積利用設計 |
JPH08264788A (ja) * | 1995-03-13 | 1996-10-11 | Samsung Electron Co Ltd | 高耐圧トランジスタ及びその製造方法 |
JP2004055999A (ja) | 2002-07-23 | 2004-02-19 | Seiko Epson Corp | 半導体装置及びその製造方法 |
KR100493018B1 (ko) | 2002-06-12 | 2005-06-07 | 삼성전자주식회사 | 반도체 장치의 제조방법 |
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- 2004-03-19 KR KR1020040018959A patent/KR101044778B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08222727A (ja) * | 1994-11-30 | 1996-08-30 | At & T Corp | 高電圧横方向デバイスのための効率的面積利用設計 |
JPH08264788A (ja) * | 1995-03-13 | 1996-10-11 | Samsung Electron Co Ltd | 高耐圧トランジスタ及びその製造方法 |
KR100493018B1 (ko) | 2002-06-12 | 2005-06-07 | 삼성전자주식회사 | 반도체 장치의 제조방법 |
JP2004055999A (ja) | 2002-07-23 | 2004-02-19 | Seiko Epson Corp | 半導体装置及びその製造方法 |
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