KR101128707B1 - 반도체 소자 및 그 제조방법 - Google Patents
반도체 소자 및 그 제조방법 Download PDFInfo
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- KR101128707B1 KR101128707B1 KR1020050029923A KR20050029923A KR101128707B1 KR 101128707 B1 KR101128707 B1 KR 101128707B1 KR 1020050029923 A KR1020050029923 A KR 1020050029923A KR 20050029923 A KR20050029923 A KR 20050029923A KR 101128707 B1 KR101128707 B1 KR 101128707B1
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims description 33
- 239000000758 substrate Substances 0.000 claims abstract description 35
- 150000002500 ions Chemical class 0.000 claims abstract description 18
- 239000012535 impurity Substances 0.000 claims abstract description 17
- 238000005468 ion implantation Methods 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 5
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 5
- 229920005591 polysilicon Polymers 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 238000002955 isolation Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 3
- 229910052785 arsenic Inorganic materials 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- -1 arsenic ions Chemical class 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 1
- 229910021342 tungsten silicide Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009279 wet oxidation reaction Methods 0.000 description 1
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Classifications
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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
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
- H01L29/10—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions with semiconductor regions connected to an electrode not carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/1095—Body region, i.e. base region, of DMOS transistors or IGBTs
-
- 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
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
- H01L29/08—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions with semiconductor regions connected to an electrode carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/0843—Source or drain regions of field-effect devices
- H01L29/0847—Source or drain regions of field-effect devices of field-effect transistors with insulated gate
- H01L29/0852—Source or drain regions of field-effect devices of field-effect transistors with insulated gate of DMOS transistors
-
- 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
- H01L29/66674—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
- H01L29/66681—Lateral DMOS transistors, i.e. LDMOS transistors
-
- 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
- H01L29/7801—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
- H01L29/7816—Lateral DMOS transistors, i.e. LDMOS transistors
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
Claims (10)
- 기판;상기 기판에 형성된 제1 접합영역;상기 제1 접합영역을 감싸도록 상기 기판에 형성된 제1 드리프트 영역;상기 제1 드리프트 영역을 둘러싸고 상기 기판 상에 형성된 게이트 전극;상기 게이트 전극을 기준으로 하여 상기 제1 접합영역이 형성된 지역의 반대편으로 노출된 상기 기판에 형성된 제2 접합영역; 및일부 영역이 상기 게이트 전극과 중첩되고 상기 제2 접합영역을 감싸도록 상기 제1 및 제2 접합영역과 반대 타입의 불순물 이온이 주입되어 상기 기판에 형성된 제2 드리프트 영역을 포함하는 반도체 소자.
- 제 1 항에 있어서,상기 제2 접합영역은 상기 게이트 전극과 일정한 간격으로 이격되어 상기 게이트 전극을 둘러싸도록 형성된 반도체 소자.
- 제 1 항 또는 제 2 항에 있어서,상기 제2 접합영역은 상기 게이트 전극과 0.50 내지 0.90㎛의 간격으로 이격된 반도체 소자.
- 제 1 항 또는 제 2 항에 있어서,상기 제2 접합영역은 상기 제1 접합영역과 동일한 타입의 불순물 이온이 주입되어 형성된 반도체 소자.
- 제 1 항 또는 제 2 항에 있어서,상기 제1 접합영역을 감싸도록 상기 제1 접합영역과 동일한 타입의 불순물 이온이 주입되어 형성된 제2 드리프트 영역을 더 포함하는 반도체 소자.
- 제 5 항에 있어서,상기 제2 드리프트 영역은 상기 제1 드리프트 영역과 일정한 간격으로 이격되도록 형성된 반도체 소자.
- 기판 내에 웰을 형성하는 단계;상기 웰 내의 소정 영역에 제1 드리프트 영역을 형성하는 단계;상기 제1 드리프트 영역을 둘러싸도록 상기 제1 드리프트 영역과 반대 타입의 불순물 이온을 주입시켜 제2 드리프트 영역을 형성하는 단계;상기 제1 드리프트 영역은 전부 노출시키고 상기 제2 드리프트 영역의 일정 부분을 덮도록 상기 기판 상에 게이트 전극을 형성하는 단계; 및상기 제2 드리프트 영역과 반대 타입의 불순물 이온을 주입시켜 상기 게이트 전극의 양측으로 노출된 상기 제1 드리프트 영역 및 상기 제2 드리프트 영역 내에 제1 접합영역 및 제2 접합영역을 형성하는 단계를 포함하는 반도체 소자의 제조방법.
- 제 7 항에 있어서,상기 제2 드리프트 영역은 상기 제2 접합영역을 둘러싸도록 형성하는 반도체 소자의 제조방법.
- 제 7 항 또는 제 8 항에 있어서,상기 제2 접합영역은 상기 게이트 전극과 일정한 간격으로 이격되도록 상기 제2 드리프트 영역 내에 형성하는 반도체 소자의 제조방법.
- 제 9 항에 있어서,상기 제2 드리프트 영역은 상기 제1 드리프트 영역과 일정한 간격으로 이격되도록 형성하는 반도체 소자의 제조방법.
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KR1020050029923A KR101128707B1 (ko) | 2005-04-11 | 2005-04-11 | 반도체 소자 및 그 제조방법 |
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KR101128707B1 true KR101128707B1 (ko) | 2012-03-26 |
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KR20050012955A (ko) * | 2003-07-25 | 2005-02-02 | 매그나칩 반도체 유한회사 | 인버스 드리프트를 갖는 고전압 트랜지스터 |
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KR20050012955A (ko) * | 2003-07-25 | 2005-02-02 | 매그나칩 반도체 유한회사 | 인버스 드리프트를 갖는 고전압 트랜지스터 |
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