KR102062050B1 - 결합된 게이트 트렌치 및 컨택 에칭 프로세스 및 그와 관련된 구조체 - Google Patents
결합된 게이트 트렌치 및 컨택 에칭 프로세스 및 그와 관련된 구조체 Download PDFInfo
- Publication number
- KR102062050B1 KR102062050B1 KR1020170069039A KR20170069039A KR102062050B1 KR 102062050 B1 KR102062050 B1 KR 102062050B1 KR 1020170069039 A KR1020170069039 A KR 1020170069039A KR 20170069039 A KR20170069039 A KR 20170069039A KR 102062050 B1 KR102062050 B1 KR 102062050B1
- Authority
- KR
- South Korea
- Prior art keywords
- trench
- contact
- gate
- semiconductor device
- conductive filler
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000004065 semiconductor Substances 0.000 claims abstract description 135
- 239000010410 layer Substances 0.000 claims abstract description 55
- 239000011231 conductive filler Substances 0.000 claims abstract description 52
- 239000000758 substrate Substances 0.000 claims abstract description 31
- 210000000746 body region Anatomy 0.000 claims abstract description 30
- 230000000873 masking effect Effects 0.000 claims abstract description 21
- 230000004888 barrier function Effects 0.000 claims abstract description 12
- 239000011229 interlayer Substances 0.000 claims abstract description 8
- 239000007943 implant Substances 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- 239000002019 doping agent Substances 0.000 description 28
- 238000002513 implantation Methods 0.000 description 7
- 229910052796 boron Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 229910052785 arsenic Inorganic materials 0.000 description 5
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- -1 boron ions Chemical class 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- WPPDFTBPZNZZRP-UHFFFAOYSA-N aluminum copper Chemical compound [Al].[Cu] WPPDFTBPZNZZRP-UHFFFAOYSA-N 0.000 description 1
- YZYDPPZYDIRSJT-UHFFFAOYSA-K boron phosphate Chemical compound [B+3].[O-]P([O-])([O-])=O YZYDPPZYDIRSJT-UHFFFAOYSA-K 0.000 description 1
- 229910000149 boron phosphate Inorganic materials 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000005389 semiconductor device fabrication Methods 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
- H10D62/102—Constructional design considerations for preventing surface leakage or controlling electric field concentration
- H10D62/103—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices
- H10D62/105—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices by having particular doping profiles, shapes or arrangements of PN junctions; by having supplementary regions, e.g. junction termination extension [JTE]
- H10D62/109—Reduced surface field [RESURF] PN junction structures
-
- H01L29/4236—
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/20—Electrodes characterised by their shapes, relative sizes or dispositions
- H10D64/27—Electrodes not carrying the current to be rectified, amplified, oscillated or switched, e.g. gates
- H10D64/311—Gate electrodes for field-effect devices
- H10D64/411—Gate electrodes for field-effect devices for FETs
- H10D64/511—Gate electrodes for field-effect devices for FETs for IGFETs
- H10D64/512—Disposition of the gate electrodes, e.g. buried gates
- H10D64/513—Disposition of the gate electrodes, e.g. buried gates within recesses in the substrate, e.g. trench gates, groove gates or buried gates
-
- 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
-
- 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
- H01L21/76838—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
- H01L21/76885—By forming conductive members before deposition of protective insulating material, e.g. pillars, studs
-
- H01L29/66348—
-
- H01L29/66621—
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D12/00—Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
- H10D12/01—Manufacture or treatment
- H10D12/031—Manufacture or treatment of IGBTs
- H10D12/032—Manufacture or treatment of IGBTs of vertical IGBTs
- H10D12/038—Manufacture or treatment of IGBTs of vertical IGBTs having a recessed gate, e.g. trench-gate IGBTs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D12/00—Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
- H10D12/411—Insulated-gate bipolar transistors [IGBT]
- H10D12/441—Vertical IGBTs
- H10D12/461—Vertical IGBTs having non-planar surfaces, e.g. having trenches, recesses or pillars in the surfaces of the emitter, base or collector regions
- H10D12/481—Vertical IGBTs having non-planar surfaces, e.g. having trenches, recesses or pillars in the surfaces of the emitter, base or collector regions having gate structures on slanted surfaces, on vertical surfaces, or in grooves, e.g. trench gate IGBTs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/028—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs
- H10D30/0291—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of vertical DMOS [VDMOS] FETs
- H10D30/0297—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of vertical DMOS [VDMOS] FETs using recessing of the gate electrodes, e.g. to form trench gate electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/64—Double-diffused metal-oxide semiconductor [DMOS] FETs
- H10D30/66—Vertical DMOS [VDMOS] FETs
- H10D30/668—Vertical DMOS [VDMOS] FETs having trench gate electrodes, e.g. UMOS transistors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
- H10D62/124—Shapes, relative sizes or dispositions of the regions of semiconductor bodies or of junctions between the regions
- H10D62/126—Top-view geometrical layouts of the regions or the junctions
- H10D62/127—Top-view geometrical layouts of the regions or the junctions of cellular field-effect devices, e.g. multicellular DMOS transistors or IGBTs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
- H10D62/17—Semiconductor regions connected to electrodes not carrying current to be rectified, amplified or switched, e.g. channel regions
- H10D62/393—Body regions of DMOS transistors or IGBTs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/80—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials
- H10D62/83—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/01—Manufacture or treatment
- H10D64/025—Manufacture or treatment forming recessed gates, e.g. by using local oxidation
- H10D64/027—Manufacture or treatment forming recessed gates, e.g. by using local oxidation by etching at gate locations
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/20—Electrodes characterised by their shapes, relative sizes or dispositions
- H10D64/23—Electrodes carrying the current to be rectified, amplified, oscillated or switched, e.g. sources, drains, anodes or cathodes
- H10D64/251—Source or drain electrodes for field-effect devices
- H10D64/256—Source or drain electrodes for field-effect devices for lateral devices wherein the source or drain electrodes are recessed in semiconductor bodies
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/60—Electrodes characterised by their materials
- H10D64/62—Electrodes ohmically coupled to a semiconductor
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/60—Electrodes characterised by their materials
- H10D64/66—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes
- H10D64/661—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes the conductor comprising a layer of silicon contacting the insulator, e.g. polysilicon having vertical doping variation
- H10D64/662—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes the conductor comprising a layer of silicon contacting the insulator, e.g. polysilicon having vertical doping variation the conductor further comprising additional layers, e.g. multiple silicon layers having different crystal structures
- H10D64/664—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes the conductor comprising a layer of silicon contacting the insulator, e.g. polysilicon having vertical doping variation the conductor further comprising additional layers, e.g. multiple silicon layers having different crystal structures the additional layers comprising a barrier layer between the layer of silicon and an upper metal or metal silicide layer
Landscapes
- 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)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
도 2a는 본 출원의 일 구현예에 따른 도 1의 흐름도의 초기 동작에 따라 처리된 반도체 구조체의 일부분에 관한 단면도를 도시한다.
도 2b는 본 출원의 일 구현예에 따른 도 1의 흐름도의 중간 동작에 따라 처리된 반도체 구조체의 일부분에 관한 단면도를 도시한다.
도 2c는 본 출원의 일 구현예에 따른 도 1의 흐름도의 중간 동작에 따라 처리된 반도체 구조체의 일부분에 관한 단면도를 도시한다.
도 2d는 본 출원의 일 구현예에 따른 도 1의 흐름도의 중간 동작에 따라 처리된 반도체 구조체의 일부분에 관한 단면도를 도시한다.
도 2e는 본 출원의 일 구현예에 따른 도 1의 흐름도의 중간 동작에 따라 처리된 반도체 구조체의 일부분에 관한 단면도를 도시한다.
도 2f는 본 출원의 일 구현예에 따른 도 1의 흐름도의 중간 동작에 따라 처리된 반도체 구조체의 일부분에 관한 단면도를 도시한다.
도 2g는 본 출원의 일 구현예에 따른 도 1의 흐름도의 중간 동작에 따라 처리된 반도체 구조체의 일부분에 관한 단면도를 도시한다.
도 2h는 본 출원의 일 구현예에 따른 도 1의 흐름도의 중간 동작에 따라 처리된 반도체 구조체의 일부분에 관한 단면도를 도시한다.
도 2i는 본 출원의 일 구현예에 따른 도 1의 흐름도의 중간 동작에 따라 처리된 반도체 구조체의 일부분에 관한 단면도를 도시한다.
도 2j는 본 출원의 일 구현예에 따른 도 1의 흐름도의 마지막 동작에 따라 처리된 반도체 구조체의 일부분에 관한 단면도를 도시한다.
Claims (20)
- 반도체 디바이스를 제조하기 위한 방법으로서,
패터닝된 마스킹 층(patterned masking layer)을 사용하여 반도체 기판 내에 게이트 트렌치들 및 컨택 트렌치를 실질적으로 동일한 깊이로 동시에 형성하는 단계와,
상기 게이트 트렌치들 내에 게이트 도전성 충진재(gate conductive filler)를 형성하는 단계와,
상기 컨택 트렌치 아래 및 상기 게이트 트렌치들 사이에 딥 바디 영역(deep body region)을 형성하는 단계와,
상기 컨택 트렌치의 하부(bottom)에 컨택 주입부(contact implant)를 형성하는 단계 - 상기 컨택 트렌치는 상기 컨택 주입부를 통해 상기 딥 바디 영역과 접촉함 - 와,
상기 컨택 트렌치 내에 컨택 도전성 충진재를 형성하는 단계를 포함하는
반도체 디바이스 제조 방법.
- 제 1 항에 있어서,
상기 게이트 트렌치들 중 적어도 하나 내에 게이트 트렌치 유전체 라이너(gate trench dielectric liner)를 형성하는 단계를 더 포함하는
반도체 디바이스 제조 방법.
- 제 1 항에 있어서,
상기 게이트 도전성 충진재 위에 중간층 유전층(interlayer dielectric layer: IDL)을 형성하는 단계를 더 포함하는
반도체 디바이스 제조 방법.
- 삭제
- 제 1 항에 있어서,
상기 컨택 트렌치 내에 장벽층(barrier layer)을 형성하는 단계를 더 포함하는
반도체 디바이스 제조 방법.
- 제 1 항에 있어서,
상기 반도체 기판 내에 바디 영역 및 소스 영역을 형성하는 단계를 더 포함하는
반도체 디바이스 제조 방법.
- 제 1 항에 있어서,
상기 게이트 도전성 충진재는 도핑된 다결정 실리콘을 포함하는
반도체 디바이스 제조 방법.
- 제 1 항에 있어서,
상기 컨택 도전성 충진재는 텅스텐을 포함하는
반도체 디바이스 제조 방법.
- 제 1 항에 있어서,
상기 컨택 트렌치 위에 금속층을 형성하는 단계를 더 포함하는
반도체 디바이스 제조 방법.
- 제 1 항에 있어서,
상기 게이트 트렌치들 중 적어도 하나는 소스 영역 및 바디 영역을 통해, 상기 반도체 기판의 드리프트 영역 내로 연장되는
반도체 디바이스 제조 방법.
- 제 1 항에 있어서,
상기 반도체 디바이스는 MOSFET을 포함하는
반도체 디바이스 제조 방법.
- 제 1 항에 있어서,
상기 반도체 디바이스는 IGBT를 포함하는
반도체 디바이스 제조 방법.
- 제 1 항에 있어서,
상기 반도체 디바이스는 0.6 미크론 이하의 셀 피치(cell pitch)를 갖는
반도체 디바이스 제조 방법.
- 반도체 디바이스로서,
반도체 기판 내 제 1 게이트 트렌치 내의 제 1 게이트 도전성 충진재와,
상기 반도체 기판 내 제 2 게이트 트렌치 내의 제 2 게이트 도전성 충진재와,
상기 반도체 기판 내 컨택 트렌치 내의 컨택 도전성 충진재와,
상기 컨택 트렌치 아래 및 상기 제 1 게이트 트렌치와 상기 제 2 게이트 트렌치 사이에 형성된 딥 바디 영역(deep body region)과,
상기 컨택 트렌치 하부에 형성된 컨택 주입부를 포함하되,
상기 컨택 도전성 충진재는 상기 제 1 게이트 트렌치와 상기 제 2 게이트 트렌치 사이의 상기 컨택 트렌치 내에 자기 정렬(self-align)되고,
상기 제 1 게이트 트렌치, 상기 제 2 게이트 트렌치 및 상기 컨택 트렌치는 실질적으로 동일한 깊이를 갖고,
상기 컨택 트렌치는 상기 컨택 주입부를 통해 상기 딥 바디 영역과 접촉하는
반도체 디바이스.
- 제 14 항에 있어서,
상기 제 1 게이트 트렌치 및 상기 제 2 게이트 트렌치 중 적어도 하나 내의 게이트 트렌치 유전체 라이너를 더 포함하는
반도체 디바이스.
- 제 14 항에 있어서,
상기 컨택 트렌치 내의 장벽층을 더 포함하는
반도체 디바이스.
- 제 14 항에 있어서,
상기 제 1 게이트 도전성 충진재 및 상기 제 2 게이트 도전성 충진재 중 적어도 하나 위에 중간층 유전층(IDL)을 더 포함하는
반도체 디바이스.
- 삭제
- 제 14 항에 있어서,
상기 제 1 게이트 도전성 충진재 및 상기 제 2 게이트 도전성 충진재는 도핑된 다결정 실리콘을 포함하는
반도체 디바이스.
- 제 14 항에 있어서,
상기 반도체 디바이스는 0.6 미크론 이하의 셀 피치를 갖는
반도체 디바이스.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/171,164 US10403712B2 (en) | 2016-06-02 | 2016-06-02 | Combined gate trench and contact etch process and related structure |
US15/171,164 | 2016-06-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20170137002A KR20170137002A (ko) | 2017-12-12 |
KR102062050B1 true KR102062050B1 (ko) | 2020-01-03 |
Family
ID=60327803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020170069039A Active KR102062050B1 (ko) | 2016-06-02 | 2017-06-02 | 결합된 게이트 트렌치 및 컨택 에칭 프로세스 및 그와 관련된 구조체 |
Country Status (3)
Country | Link |
---|---|
US (2) | US10403712B2 (ko) |
KR (1) | KR102062050B1 (ko) |
DE (1) | DE102017111925B4 (ko) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7458217B2 (ja) * | 2020-03-19 | 2024-03-29 | 株式会社東芝 | 半導体装置、半導体装置の製造方法、インバータ回路、駆動装置、車両、及び、昇降機 |
CN115513057A (zh) * | 2021-06-23 | 2022-12-23 | 上海艾为电子技术股份有限公司 | Mosfet及其制作方法 |
CN119277806A (zh) * | 2023-07-03 | 2025-01-07 | 达尔科技股份有限公司 | 半导体整流器件及其制造方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010109033A (ja) * | 2008-10-29 | 2010-05-13 | Renesas Technology Corp | 半導体装置およびその製造方法 |
US20100190307A1 (en) * | 2009-01-29 | 2010-07-29 | Alpha & Omega Semiconductor, Inc | High density trench mosfet with single mask pre-defined gate and contact trenches |
US20100308400A1 (en) * | 2008-06-20 | 2010-12-09 | Maxpower Semiconductor Inc. | Semiconductor Power Switches Having Trench Gates |
US20140179074A1 (en) * | 2012-12-20 | 2014-06-26 | Ji Pan | Method of making mosfet integrated with schottky diode with simplified one-time top-contact trench etching |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2248159A4 (en) * | 2008-02-14 | 2011-07-13 | Maxpower Semiconductor Inc | SEMICONDUCTOR COMPONENT STRUCTURES AND SAME PROCESSES |
US8580667B2 (en) * | 2010-12-14 | 2013-11-12 | Alpha And Omega Semiconductor Incorporated | Self aligned trench MOSFET with integrated diode |
JP5498431B2 (ja) | 2011-02-02 | 2014-05-21 | ローム株式会社 | 半導体装置およびその製造方法 |
US9691863B2 (en) * | 2015-04-08 | 2017-06-27 | Alpha And Omega Semiconductor Incorporated | Self-aligned contact for trench power MOSFET |
JP6667893B2 (ja) * | 2015-10-20 | 2020-03-18 | 富士電機株式会社 | 半導体装置および半導体装置の製造方法 |
-
2016
- 2016-06-02 US US15/171,164 patent/US10403712B2/en active Active
-
2017
- 2017-05-31 DE DE102017111925.6A patent/DE102017111925B4/de active Active
- 2017-06-02 KR KR1020170069039A patent/KR102062050B1/ko active Active
-
2019
- 2019-08-02 US US16/530,251 patent/US10840327B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100308400A1 (en) * | 2008-06-20 | 2010-12-09 | Maxpower Semiconductor Inc. | Semiconductor Power Switches Having Trench Gates |
JP2010109033A (ja) * | 2008-10-29 | 2010-05-13 | Renesas Technology Corp | 半導体装置およびその製造方法 |
US20100190307A1 (en) * | 2009-01-29 | 2010-07-29 | Alpha & Omega Semiconductor, Inc | High density trench mosfet with single mask pre-defined gate and contact trenches |
US20140179074A1 (en) * | 2012-12-20 | 2014-06-26 | Ji Pan | Method of making mosfet integrated with schottky diode with simplified one-time top-contact trench etching |
Also Published As
Publication number | Publication date |
---|---|
US20190355807A1 (en) | 2019-11-21 |
DE102017111925A1 (de) | 2017-12-07 |
DE102017111925B4 (de) | 2024-10-24 |
KR20170137002A (ko) | 2017-12-12 |
US10840327B2 (en) | 2020-11-17 |
US10403712B2 (en) | 2019-09-03 |
US20170352723A1 (en) | 2017-12-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11552172B2 (en) | Silicon carbide device with compensation layer and method of manufacturing | |
CN110718546B (zh) | 绝缘栅极半导体器件及其制造方法 | |
US10763351B2 (en) | Vertical trench DMOSFET having integrated implants forming enhancement diodes in parallel with the body diode | |
US6365942B1 (en) | MOS-gated power device with doped polysilicon body and process for forming same | |
JP7057555B2 (ja) | 半導体装置 | |
CN105590962A (zh) | 碳化硅半导体装置和用于制造碳化硅半导体装置的方法 | |
US20170301792A1 (en) | Semiconductor Devices and a Method for Forming a Semiconductor Device | |
CN105321824B (zh) | 半导体装置的制造方法 | |
JP2019003967A (ja) | 半導体装置および半導体装置の製造方法 | |
US8017494B2 (en) | Termination trench structure for mosgated device and process for its manufacture | |
JPWO2012137412A1 (ja) | 半導体装置 | |
CN110429129A (zh) | 高压沟槽型功率半导体器件及制备方法 | |
US8492221B2 (en) | Method for fabricating power semiconductor device with super junction structure | |
US10840327B2 (en) | Combined gate trench and contact etch process and related structure | |
KR101912030B1 (ko) | 결합된 게이트 및 소스 트렌치 형성 및 관련 구조 | |
US20240347585A1 (en) | Mosfet with distributed doped p-shield zones under trenches having different depths | |
US20240234518A9 (en) | Transistor device and method of fabricating contacts to a semiconductor substrate | |
US7923330B2 (en) | Method for manufacturing a semiconductor device | |
CN113725300B (zh) | 多源mos管共用栅极的芯片结构及其制造方法 | |
JP7636318B2 (ja) | 半導体装置及び半導体装置の製造方法 | |
CN119170625A (zh) | 一种具有自对准通道和自对准接触区的半导体器件及制备 | |
KR20230114167A (ko) | 트렌치 측면 및 수평 채널을 가지는 반도체 소자 및 그 제조방법 | |
JP2025063782A (ja) | 炭化珪素半導体装置および炭化珪素半導体装置の製造方法 | |
KR20160092337A (ko) | 초접합 구조체 및 트렌치 게이트를 포함하는 전력 모스형 다이오드의 제조방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 20170602 |
|
A201 | Request for examination | ||
PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 20170801 Comment text: Request for Examination of Application Patent event code: PA02011R01I Patent event date: 20170602 Comment text: Patent Application |
|
PG1501 | Laying open of application | ||
E902 | Notification of reason for refusal | ||
PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 20180516 Patent event code: PE09021S01D |
|
E90F | Notification of reason for final refusal | ||
PE0902 | Notice of grounds for rejection |
Comment text: Final Notice of Reason for Refusal Patent event date: 20190320 Patent event code: PE09021S02D |
|
E701 | Decision to grant or registration of patent right | ||
PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 20190927 |
|
PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 20191227 Patent event code: PR07011E01D |
|
PR1002 | Payment of registration fee |
Payment date: 20191230 End annual number: 3 Start annual number: 1 |
|
PG1601 | Publication of registration |