JP7444984B2 - 半導体デバイスの製造方法、半導体基板、半導体デバイス、電子機器 - Google Patents
半導体デバイスの製造方法、半導体基板、半導体デバイス、電子機器 Download PDFInfo
- Publication number
- JP7444984B2 JP7444984B2 JP2022532500A JP2022532500A JP7444984B2 JP 7444984 B2 JP7444984 B2 JP 7444984B2 JP 2022532500 A JP2022532500 A JP 2022532500A JP 2022532500 A JP2022532500 A JP 2022532500A JP 7444984 B2 JP7444984 B2 JP 7444984B2
- Authority
- JP
- Japan
- Prior art keywords
- semiconductor
- section
- manufacturing
- semiconductor device
- mask
- 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
- 239000004065 semiconductor Substances 0.000 title claims description 454
- 239000000758 substrate Substances 0.000 title claims description 99
- 238000004519 manufacturing process Methods 0.000 title claims description 51
- 229910002601 GaN Inorganic materials 0.000 claims description 71
- 238000000034 method Methods 0.000 claims description 46
- 239000013078 crystal Substances 0.000 claims description 39
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 26
- 229910052733 gallium Inorganic materials 0.000 claims description 25
- 150000004767 nitrides Chemical class 0.000 claims description 20
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 18
- 229910052710 silicon Inorganic materials 0.000 claims description 18
- 239000010703 silicon Substances 0.000 claims description 18
- 229910052782 aluminium Inorganic materials 0.000 claims description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 7
- RNQKDQAVIXDKAG-UHFFFAOYSA-N aluminum gallium Chemical group [Al].[Ga] RNQKDQAVIXDKAG-UHFFFAOYSA-N 0.000 claims description 6
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 5
- 239000000039 congener Substances 0.000 claims description 4
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 57
- 238000000151 deposition Methods 0.000 description 36
- 230000008021 deposition Effects 0.000 description 36
- 230000001629 suppression Effects 0.000 description 28
- 230000008569 process Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 238000001000 micrograph Methods 0.000 description 9
- 229910004298 SiO 2 Inorganic materials 0.000 description 8
- 229910002704 AlGaN Inorganic materials 0.000 description 7
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 6
- 239000002994 raw material Substances 0.000 description 5
- 238000001947 vapour-phase growth Methods 0.000 description 5
- 238000005253 cladding Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910017107 AlOx Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 229910004205 SiNX Inorganic materials 0.000 description 2
- 229910003087 TiOx Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 229910003134 ZrOx Inorganic materials 0.000 description 2
- NWAIGJYBQQYSPW-UHFFFAOYSA-N azanylidyneindigane Chemical compound [In]#N NWAIGJYBQQYSPW-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000002019 doping agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002248 hydride vapour-phase epitaxy Methods 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- HLLICFJUWSZHRJ-UHFFFAOYSA-N tioxidazole Chemical compound CCCOC1=CC=C2N=C(NC(=O)OC)SC2=C1 HLLICFJUWSZHRJ-UHFFFAOYSA-N 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 230000005533 two-dimensional electron gas Effects 0.000 description 2
- 238000000927 vapour-phase epitaxy Methods 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- AUCDRFABNLOFRE-UHFFFAOYSA-N alumane;indium Chemical compound [AlH3].[In] AUCDRFABNLOFRE-UHFFFAOYSA-N 0.000 description 1
- AJGDITRVXRPLBY-UHFFFAOYSA-N aluminum indium Chemical compound [Al].[In] AJGDITRVXRPLBY-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052795 boron group element Inorganic materials 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000002109 crystal growth method Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000001004 secondary ion mass spectrometry Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- 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
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02367—Substrates
- H01L21/0237—Materials
- H01L21/02387—Group 13/15 materials
- H01L21/02389—Nitrides
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/04—Coating on selected surface areas, e.g. using masks
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/34—Nitrides
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
- C30B25/04—Pattern deposit, e.g. by using masks
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/38—Nitrides
-
- 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
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02367—Substrates
- H01L21/02433—Crystal orientation
-
- 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
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02436—Intermediate layers between substrates and deposited layers
- H01L21/02439—Materials
- H01L21/02455—Group 13/15 materials
- H01L21/02458—Nitrides
-
- 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
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02538—Group 13/15 materials
- H01L21/0254—Nitrides
-
- 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
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02612—Formation types
- H01L21/02617—Deposition types
- H01L21/02636—Selective deposition, e.g. simultaneous growth of mono- and non-monocrystalline semiconductor materials
- H01L21/02639—Preparation of substrate for selective deposition
- H01L21/02642—Mask materials other than SiO2 or SiN
-
- 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
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02612—Formation types
- H01L21/02617—Deposition types
- H01L21/02636—Selective deposition, e.g. simultaneous growth of mono- and non-monocrystalline semiconductor materials
- H01L21/02647—Lateral overgrowth
-
- 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
- H01L29/66446—Unipolar field-effect transistors with an active layer made of a group 13/15 material, e.g. group 13/15 velocity modulation transistor [VMT], group 13/15 negative resistance FET [NERFET]
- H01L29/66462—Unipolar field-effect transistors with an active layer made of a group 13/15 material, e.g. group 13/15 velocity modulation transistor [VMT], group 13/15 negative resistance FET [NERFET] with a heterojunction interface channel or gate, e.g. HFET, HIGFET, SISFET, HJFET, HEMT
-
- 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
- H01L29/778—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface
- H01L29/7781—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface with inverted single heterostructure, i.e. with active layer formed on top of wide bandgap layer, e.g. IHEMT
-
- 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
- H01L29/778—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface
- H01L29/7786—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface with direct single heterostructure, i.e. with wide bandgap layer formed on top of active layer, e.g. direct single heterostructure MIS-like HEMT
-
- 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
- H01L29/1066—Gate region of field-effect devices with PN junction gate
-
- 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
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/20—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
- H01L29/2003—Nitride compounds
-
- 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/417—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
- H01L29/41725—Source or drain electrodes for field effect devices
- H01L29/41766—Source or drain electrodes for field effect devices with at least part of the source or drain electrode having contact below the semiconductor surface, e.g. the source or drain electrode formed at least partially in a groove or with inclusions of conductor inside the semiconductor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
- H01L33/26—Materials of the light emitting region
- H01L33/30—Materials of the light emitting region containing only elements of Group III and Group V of the Periodic Table
- H01L33/32—Materials of the light emitting region containing only elements of Group III and Group V of the Periodic Table containing nitrogen
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Junction Field-Effect Transistors (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Description
以下、図面を参照して、本開示の実施形態1について説明する。
実施形態に係るマスク形成工程では、まず下地基板として基板2を準備する。基板2はオフ基板であり、基板2の成長面1の法線は、例えばa軸<11-20>方向から0.3°傾いていてもよい。ただし、基板2はa軸に対するオフ角が0.1°から1°の基板を用いることが可能である。
続いて、帯状部3a間の開口部から露出している成長面1の結晶成長領域1bから半導体結晶の結晶成長層である第1半導体層4を気相成長させる。本開示の第1半導体層4は、窒化物半導体層である。
第1半導体層4を成長させた後、第1半導体層4の第1面4aに、少なくとも第1半導体層4と接する部分がアルミニウムを含有している第2半導体層5を形成する。アルミニウムを含有する層を形成する際、堆積抑制マスク3上の第1半導体層4が形成されていない部位には、アルミニウムを含有する非単結晶膜5’が同時に形成される。第2半導体層5の層構造および各層の組成については、発光ダイオード(Light Emitting Diode;LED)、半導体レーザ(Laser Diode;LD)またはフォトダイオード(Photodiode;PD)などの任意のデバイス構造に応じて適宜設計する。第2半導体層5の厚さは、例えば1μmから5μm程度である。
本開示の半導体エピタキシャル基板は、デバイス層の下地となる基板2の成長面上に第1半導体層4を成長した後、第2半導体層5を成長させ、堆積抑制マスク3を第2半導体層5で覆うことによって製造できる。これにより、デバイス層となる半導体結晶層を均一に形成することができ、品質に優れた半導体エピタキシャル基板10を提供できる。
〔実施形態2〕
図7・図9等では、第1半導体部S1の<11-20>方向をX方向(a軸方向)、<1-100>方向をY方向(m軸方向)、<0001>方をZ方向(c軸方向)としている。図7~図9の製法では、同一のマスク部3a上を逆向きに横方向成長する半導体結晶(第1半導体部)同士が、マスク部3a上で会合する前に成長を止め、それらの間隙(ギャップ)が第2領域A2に対応する。
に限定されるものではなく、本開示の要旨を逸脱しない範囲内において、種々の変更、改
良等が可能である。上記各実施形態をそれぞれ構成する全部または一部を、適宜、矛盾し
ない範囲で組み合わせ可能であることは、言うまでもない。
1a 成長面1の部分領域
1b 結晶成長領域
2 基板(下地基板)
3 堆積抑制マスク(マスク)
4 第1半導体層
5 第2半導体層
5’ 非単結晶膜
6 半導体素子部
7 接続部
10 半導体エピタキシャル基板(半導体基板、半導体デバイス)
20 半導体チップ(半導体デバイス)
Claims (39)
- シード部および非シード部を含むテンプレート基板を準備する工程と、
前記シード部上から前記非シード部の第1領域上にわたって第1半導体部を形成する工程と、
前記第1半導体部の上方に位置する第2半導体部と、前記非シード部における前記第1半導体部が形成されていない第2領域の上方に位置し、ガリウムの同族元素を含む第3半導体部とを形成する工程とを含み、
前記第3半導体部は、前記第1半導体部よりも薄い、半導体デバイスの製造方法。 - 前記ガリウムの同族元素がアルミニウムである、請求項1に記載の半導体デバイスの製造方法。
- 前記第2半導体部は、前記ガリウムの同族元素およびガリウムを含む、請求項1に記載の半導体デバイスの製造方法。
- 前記第3半導体部および前記第2半導体部それぞれが窒化物半導体を含む、請求項3に記載の半導体デバイスの製造方法。
- 前記窒化物半導体が窒化アルミニウムガリウムである、請求項4に記載の半導体デバイスの製造方法。
- 前記第3半導体部に含まれる窒化アルミニウムガリウムは、前記第2半導体部に含まれる窒化アルミニウムガリウムと組成が異なる、請求項5に記載の半導体デバイスの製造方法。
- 前記第3半導体部と前記第2半導体部とを形成する工程において、前記第1半導体部の側面に沿う第4半導体部を形成する、請求項3に記載の半導体デバイスの製造方法。
- 前記第2半導体部が前記第1半導体部の上面に接する、請求項3に記載の半導体デバイスの製造方法。
- 前記テンプレート基板は、前記非シード部であるマスク部と、前記シード部を露出させる開口部とを含むマスクパターンを備える、請求項3に記載の半導体デバイスの製造方法。
- 前記第3半導体部が前記マスク部に接する、請求項9に記載の半導体デバイスの製造方法。
- 前記第1半導体部は、シリコンおよびGaN系半導体を含む、請求項9に記載の半導体デバイスの製造方法。
- 前記第3半導体部を形成した後に、前記第2半導体部の上方に位置する第5半導体部を形成する、請求項9に記載の半導体デバイスの製造方法。
- 前記第5半導体部はp型である、請求項12に記載の半導体デバイスの製造方法。
- 前記第2半導体部の上方に活性部を形成し、前記活性部の上方に前記第5半導体部を形成する、請求項12に記載の半導体デバイスの製造方法。
- 前記第2半導体部はn型である、請求項3に記載の半導体デバイスの製造方法。
- 前記第3半導体部の厚みは、前記第2半導体部の厚みよりも小さい、請求項3に記載の半導体デバイスの製造方法。
- 前記マスク部並びに前記第1および第5半導体部がシリコンを含み、
前記第5半導体部のシリコン濃度は、前記第1半導体部のシリコン濃度の1/5以下である、請求項12に記載の半導体デバイスの製造方法。 - 前記第5半導体部を形成した後に、前記第3半導体部を除去する、請求項12に記載の半導体デバイスの製造方法。
- 前記第3半導体部を除去した後に前記マスク部を除去する、請求項18に記載の半導体デバイスの製造方法。
- 前記第5半導体部を形成した後に前記テンプレート基板と前記第1半導体部との接続部を除去する、請求項12に記載の半導体デバイスの製造方法。
- 前記接続部を除去する際に、前記第3半導体部を除去する、請求項20に記載の半導体デバイスの製造方法。
- 前記第1半導体部と前記テンプレート基板とを離隔する工程を含む、請求項19または20に記載の半導体デバイスの製造方法。
- 前記テンプレート基板は主基板を含み、
前記主基板は、前記GaN系半導体と格子定数が異なる異種基板である、請求項11に記載の半導体デバイスの製造方法。 - 前記マスク部が、シリコン酸化物およびシリコン窒化物の少なくとも一方を含む、請求項9に記載の半導体デバイスの製造方法。
- 前記開口部がスリット状であり、
前記シード部は、前記開口部と重なる長手形状である、請求項9に記載の半導体デバイスの製造方法。 - 前記第5半導体部は、上面と、側面と、前記上面および前記側面と隣り合い、前記上面および前記側面に対して斜めをなす斜面とを有する、請求項12に記載の半導体デバイス。
- 前記第5半導体部はアンドープ型である、請求項12に記載の半導体デバイスの製造方法。
- 前記第3半導体部の上面は、前記第1半導体部の上面よりも下側に位置する、請求項1に記載の半導体デバイスの製造方法。
- 前記第3半導体部は、デブリ膜である、請求項1に記載の半導体デバイスの製造方法。
- 前記第3半導体部は、非単結晶膜である、請求項1に記載の半導体デバイスの製造方法。
- 前記第1半導体部および前記第3半導体部は接触しない、請求項1に記載の半導体デバイスの製造方法。
- 前記第1半導体部は、前記非シード部の上方に位置するエッジを有する、請求項1に記載の半導体デバイスの製造方法。
- シード部および非シード部を含むテンプレート基板と、
前記シード部上から前記非シード部の第1領域上に位置する第1半導体部と、
前記第1半導体部の上方に位置する第2半導体部と、
前記非シード部における前記第1半導体部が形成されていない第2領域上に位置し、ガリウムの同族元素を含む第3半導体部とを含み、
前記第3半導体部は、前記第1半導体部よりも薄い、半導体基板。 - GaN系半導体およびシリコンを含み、貫通転位密度が5×106/cm2以下の低転位部を有する第1半導体部と、
前記第1半導体部の上方に位置し、ガリウムおよびガリウムの同族元素を含む第2半導体部と、
前記第2半導体部の上方に位置する、p型のGaN系半導体部とを含み、
前記p型のGaN系半導体部がシリコンを含み、
前記GaN系半導体部のシリコン濃度は、前記第1半導体部のシリコン濃度の1/5以下である、半導体デバイス。 - 前記ガリウムの同族元素がアルミニウムである、請求項34に記載の半導体デバイス。
- 前記第2半導体部がシリコンを含む、請求項34に記載の半導体デバイス。
- 前記第2半導体部と前記GaN系半導体部との間に発光部が含まれる、請求項34に記載の半導体デバイス。
- 前記GaN系半導体部にトランジスタのチャネル部が含まれる、請求項34に記載の半導体デバイス。
- 請求項34に記載の半導体デバイスを含む、電子機器。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2024025946A JP2024057013A (ja) | 2020-06-22 | 2024-02-22 | 半導体デバイスの製造方法、半導体基板 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020107315 | 2020-06-22 | ||
JP2020107315 | 2020-06-22 | ||
PCT/JP2021/023655 WO2021261494A1 (ja) | 2020-06-22 | 2021-06-22 | 半導体デバイスの製造方法、半導体デバイス、電子機器、半導体エピタキシャル基板の製造方法および半導体エピタキシャル基板 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2024025946A Division JP2024057013A (ja) | 2020-06-22 | 2024-02-22 | 半導体デバイスの製造方法、半導体基板 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2021261494A1 JPWO2021261494A1 (ja) | 2021-12-30 |
JP7444984B2 true JP7444984B2 (ja) | 2024-03-06 |
Family
ID=79281229
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2022532500A Active JP7444984B2 (ja) | 2020-06-22 | 2021-06-22 | 半導体デバイスの製造方法、半導体基板、半導体デバイス、電子機器 |
JP2024025946A Pending JP2024057013A (ja) | 2020-06-22 | 2024-02-22 | 半導体デバイスの製造方法、半導体基板 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2024025946A Pending JP2024057013A (ja) | 2020-06-22 | 2024-02-22 | 半導体デバイスの製造方法、半導体基板 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20230335400A1 (ja) |
JP (2) | JP7444984B2 (ja) |
TW (1) | TWI834979B (ja) |
WO (1) | WO2021261494A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018204916A1 (en) * | 2017-05-05 | 2018-11-08 | The Regents Of The University Of California | Method of removing a substrate |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002505519A (ja) | 1998-02-27 | 2002-02-19 | ノース・キャロライナ・ステイト・ユニヴァーシティ | マスクを通過する横方向のオーバーグロースによる窒化ガリウム半導体層を製造する方法及びそれによって製造された窒化ガリウム半導体の構造体 |
JP2002261327A (ja) | 2001-03-06 | 2002-09-13 | Sony Corp | 半導体発光素子及び半導体発光素子の製造方法 |
JP2007246331A (ja) | 2006-03-15 | 2007-09-27 | Hitachi Cable Ltd | Iii−v族窒化物系半導体基板及びその製造方法 |
JP2007314360A (ja) | 2006-05-23 | 2007-12-06 | Mitsubishi Cable Ind Ltd | テンプレート基板 |
JP2008001540A (ja) | 2006-06-21 | 2008-01-10 | Mitsubishi Cable Ind Ltd | 窒化物半導体結晶の製造方法 |
JP2008273835A (ja) | 2008-06-09 | 2008-11-13 | Sharp Corp | 窒化物半導体レーザ素子および窒化物半導体レーザ素子の製造方法 |
JP2013070072A (ja) | 2006-04-25 | 2013-04-18 | National Univ Of Singapore | エピタキシャル横方向異常成長窒化ガリウムテンプレート上での酸化亜鉛膜成長の方法 |
JP2013074278A (ja) | 2011-09-29 | 2013-04-22 | Panasonic Corp | 窒化物半導体基板及びその製造方法、並びにそれを用いた窒化物半導体発光素子 |
JP2013239718A (ja) | 2008-09-01 | 2013-11-28 | Sophia School Corp | 半導体光素子アレイおよびその製造方法 |
JP2015512151A (ja) | 2012-02-14 | 2015-04-23 | クナノ・アーベー | 窒化ガリウムナノワイヤに基づくエレクトロニクス |
US20150318436A1 (en) | 2012-10-15 | 2015-11-05 | Seoul Viosys Co., Ltd. | Method for separating growth substrate, method for manufacturing light-emitting diode, and light-emitting diode manufactured using methods |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4416761B2 (ja) * | 2000-10-04 | 2010-02-17 | 三洋電機株式会社 | 窒化物系半導体素子および窒化物系半導体の形成方法 |
-
2021
- 2021-06-22 WO PCT/JP2021/023655 patent/WO2021261494A1/ja active Application Filing
- 2021-06-22 TW TW110122802A patent/TWI834979B/zh active
- 2021-06-22 JP JP2022532500A patent/JP7444984B2/ja active Active
- 2021-06-22 US US18/011,658 patent/US20230335400A1/en active Pending
-
2024
- 2024-02-22 JP JP2024025946A patent/JP2024057013A/ja active Pending
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002505519A (ja) | 1998-02-27 | 2002-02-19 | ノース・キャロライナ・ステイト・ユニヴァーシティ | マスクを通過する横方向のオーバーグロースによる窒化ガリウム半導体層を製造する方法及びそれによって製造された窒化ガリウム半導体の構造体 |
JP2002261327A (ja) | 2001-03-06 | 2002-09-13 | Sony Corp | 半導体発光素子及び半導体発光素子の製造方法 |
JP2007246331A (ja) | 2006-03-15 | 2007-09-27 | Hitachi Cable Ltd | Iii−v族窒化物系半導体基板及びその製造方法 |
JP2013070072A (ja) | 2006-04-25 | 2013-04-18 | National Univ Of Singapore | エピタキシャル横方向異常成長窒化ガリウムテンプレート上での酸化亜鉛膜成長の方法 |
JP2007314360A (ja) | 2006-05-23 | 2007-12-06 | Mitsubishi Cable Ind Ltd | テンプレート基板 |
JP2008001540A (ja) | 2006-06-21 | 2008-01-10 | Mitsubishi Cable Ind Ltd | 窒化物半導体結晶の製造方法 |
JP2008273835A (ja) | 2008-06-09 | 2008-11-13 | Sharp Corp | 窒化物半導体レーザ素子および窒化物半導体レーザ素子の製造方法 |
JP2013239718A (ja) | 2008-09-01 | 2013-11-28 | Sophia School Corp | 半導体光素子アレイおよびその製造方法 |
JP2013074278A (ja) | 2011-09-29 | 2013-04-22 | Panasonic Corp | 窒化物半導体基板及びその製造方法、並びにそれを用いた窒化物半導体発光素子 |
JP2015512151A (ja) | 2012-02-14 | 2015-04-23 | クナノ・アーベー | 窒化ガリウムナノワイヤに基づくエレクトロニクス |
US20150318436A1 (en) | 2012-10-15 | 2015-11-05 | Seoul Viosys Co., Ltd. | Method for separating growth substrate, method for manufacturing light-emitting diode, and light-emitting diode manufactured using methods |
Also Published As
Publication number | Publication date |
---|---|
WO2021261494A1 (ja) | 2021-12-30 |
TWI834979B (zh) | 2024-03-11 |
TW202205381A (zh) | 2022-02-01 |
US20230335400A1 (en) | 2023-10-19 |
JPWO2021261494A1 (ja) | 2021-12-30 |
JP2024057013A (ja) | 2024-04-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6841410B2 (en) | Method for forming group-III nitride semiconductor layer and group-III nitride semiconductor device | |
TWI221688B (en) | Manufacturing method of a semiconductor light emitting device, semiconductor light emitting device, manufacturing method of semiconductor device, semiconductor device, manufacturing method of a device and device | |
US6645295B1 (en) | Method for manufacturing group III nitride compound semiconductor and a light-emitting device using group III nitride compound semiconductor | |
US20240063340A1 (en) | METHOD FOR RELAXING SEMICONDUCTOR FILMS INCLUDING THE FABRICATION OF PSEUDO-SUBSTRATES AND FORMATION OF COMPOSITES ALLOWING THE ADDITION OF PREVIOUSLY UN-ACCESSIBLE FUNCTIONALITY OF GROUP lll-NITRIDES | |
JP2003218390A (ja) | 半導体発光素子及びその製造方法 | |
US20240072198A1 (en) | Semiconductor substrate, semiconductor device, and electronic device | |
EP2346068A1 (en) | Iii nitride semiconductor electronic device, method for manufacturing iii nitride semiconductor electronic device, and iii nitride semiconductor epitaxial wafer | |
JP2024057013A (ja) | 半導体デバイスの製造方法、半導体基板 | |
US8878211B2 (en) | Heterogeneous substrate, nitride-based semiconductor device using same, and manufacturing method thereof | |
US9515146B2 (en) | Nitride semiconductor layer, nitride semiconductor device, and method for manufacturing nitride semiconductor layer | |
KR101233328B1 (ko) | 무극성 또는 반극성 ⅲ족 질화물 기반 수직형 발광 다이오드 및 그 제조방법 | |
US9997893B2 (en) | Semiconductor laser diode and method of fabricating the same | |
US20240191391A1 (en) | SEMICONDUCTOR SUBSTRATE, MANUFACTURING METHOD AND MANUFACTURING APPARATUS THEREFOR, GaN-BASED CRYSTAL BODY, SEMICONDUCTOR DEVICE, AND ELECTRONIC DEVICE | |
US20240203732A1 (en) | Semiconductor substrate, manufacturing method and manufacturing apparatus for semiconductor substrate, semiconductor device, manufacturing method and manufacturing apparatus for semiconductor device, and electronic device | |
KR101104239B1 (ko) | 이종 기판, 그를 이용한 질화물계 반도체 소자 및 그의 제조 방법 | |
CN103872200A (zh) | 形成半导体层的方法、半导体发光器件及其制造方法 | |
WO2016002801A1 (ja) | 半導体積層構造体及び半導体素子 | |
US8541772B2 (en) | Nitride semiconductor stacked structure and method for manufacturing same and nitride semiconductor device | |
TW202433560A (zh) | 半導體裝置之製造方法、半導體裝置、電子機器、半導體磊晶基板之製造方法及半導體磊晶基板 | |
JP2018022814A (ja) | 窒化物半導体素子及びその製造方法 | |
EP4362115A1 (en) | Semiconductor device manufacturing method and manufacturing device, semiconductor device and electronic device | |
KR101901932B1 (ko) | 이종 기판, 질화물 반도체 발광 소자 및 그 제조 방법 | |
KR101250475B1 (ko) | 절연체 패턴을 갖는 이종 기판 및 그를 이용한 질화물계 반도체 소자 | |
EP4394903A1 (en) | Method and device for producing semiconductor device | |
EP4350909A1 (en) | Semiconductor device, semiconductor device manufacturing method and manufacturing apparatus, and electronic apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20221213 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230711 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20230907 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20231107 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20240123 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20240222 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7444984 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |