JP2019075508A - 半導体装置および半導体ウェーハ - Google Patents
半導体装置および半導体ウェーハ Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 378
- 229910001195 gallium oxide Inorganic materials 0.000 claims abstract description 88
- 239000000758 substrate Substances 0.000 claims abstract description 84
- 229910052796 boron Inorganic materials 0.000 claims abstract description 12
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 11
- 229910052738 indium Inorganic materials 0.000 claims abstract description 11
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims description 37
- 239000000370 acceptor Substances 0.000 description 39
- 239000013078 crystal Substances 0.000 description 30
- 238000012986 modification Methods 0.000 description 18
- 230000004048 modification Effects 0.000 description 18
- 235000012431 wafers Nutrition 0.000 description 18
- 238000000034 method Methods 0.000 description 15
- 239000000155 melt Substances 0.000 description 9
- 229910052710 silicon Inorganic materials 0.000 description 9
- 239000011777 magnesium Substances 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 229910052785 arsenic Inorganic materials 0.000 description 6
- 229910052790 beryllium Inorganic materials 0.000 description 6
- 229910052749 magnesium Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000001451 molecular beam epitaxy Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- 229910052793 cadmium Inorganic materials 0.000 description 5
- 239000000460 chlorine Substances 0.000 description 5
- 230000001747 exhibiting effect Effects 0.000 description 5
- 239000011572 manganese Substances 0.000 description 5
- 239000010955 niobium Substances 0.000 description 5
- 239000010948 rhodium Substances 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 229910052725 zinc Inorganic materials 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 description 4
- 229910052794 bromium Inorganic materials 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 229910052735 hafnium Inorganic materials 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 229910052740 iodine Inorganic materials 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 229910052758 niobium Inorganic materials 0.000 description 4
- 229910052703 rhodium Inorganic materials 0.000 description 4
- 229910052707 ruthenium Inorganic materials 0.000 description 4
- 229910052715 tantalum Inorganic materials 0.000 description 4
- 229910052718 tin Inorganic materials 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 3
- 229910052787 antimony Inorganic materials 0.000 description 3
- 230000005669 field effect Effects 0.000 description 3
- 238000005468 ion implantation Methods 0.000 description 3
- 229910052741 iridium Inorganic materials 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- 229910052726 zirconium Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical group [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000001947 vapour-phase growth Methods 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 238000003775 Density Functional Theory Methods 0.000 description 1
- 229910002601 GaN Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 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
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/24—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only semiconductor materials not provided for in groups H01L29/16, H01L29/18, H01L29/20, H01L29/22
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- 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
- H01L29/04—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their crystalline structure, e.g. polycrystalline, cubic or particular orientation of crystalline planes
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- 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
- H01L29/41741—Source or drain electrodes for field effect devices for vertical or pseudo-vertical devices
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- 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
- H01L29/7802—Vertical DMOS transistors, i.e. VDMOS transistors
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- H01—ELECTRIC ELEMENTS
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- 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
- H01L29/7802—Vertical DMOS transistors, i.e. VDMOS transistors
- H01L29/7813—Vertical DMOS transistors, i.e. VDMOS transistors with trench gate electrode, e.g. UMOS transistors
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- 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
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Abstract
Description
図1を参照して、第1実施形態について説明する。本実施形態は、半導体装置に関する。図1は、第1実施形態に係る半導体装置の断面を示す図である。
以下、β‐酸化ガリウムのp型化について、試験例を参照して説明する。
表1は、β‐酸化ガリウムのバンドギャップと、β‐酸化ガリウムのガリウム原子の一部をホウ素原子に置換した場合のバンドギャップとをシミュレーション計算により算出した結果を示したものである。表1は、β‐酸化ガリウムのユニットセルに3次元周期境界条件を適用することによりβ‐酸化ガリウムの結晶構造を作成し、密度汎関数法による量子力学計算に基づきバンドギャップを算出した結果である。
第1実施形態の変形例について説明する。本変形例は、半導体装置に関する。図2は、第1実施形態の変形例に係る半導体装置の断面を示す図である。本変形例に係る半導体装置2は、β‐酸化ガリウムを用いた縦型のMOSFET(Metal Oxide Semiconductor Field Effect Transistor)である。本変形例の半導体装置2は、所謂トレンチ型構造のMOSFETである。
図3を参照して、第2実施形態について説明する。本実施形態は、半導体ウェーハに関する。図3は、第2実施形態に係る半導体ウェーハの断面を示す図である。
第2実施形態の変形例について説明する。本変形例は、半導体ウェーハに関する。図4は、第2実施形態の変形例に係る半導体ウェーハの断面を示す図である。本変形例に係る半導体ウェーハ4は、半導体基板10nと、半導体領域10pとを含む。本変形例において、半導体基板10nは、β‐酸化ガリウム系単結晶基板である。本変形例においては、半導体基板10nの導電型はn型である。
3、4 半導体ウェーハ
10n 半導体基板
10p 半導体領域
10s 第1主面
10t 第2主面
11n 第1半導体領域
11a 第1領域
11b 第2領域
12c チャネル領域
12p 第2半導体領域
13n 第3半導体領域
21 第1電極
22 第2電極
23 制御電極
31 絶縁膜
HM 矢印
Claims (5)
- β‐酸化ガリウムを含む、第1導電型の半導体基板と、
β‐酸化ガリウムを含み、前記半導体基板の上側に設けられた前記第1導電型の第1半導体領域と、
β‐酸化ガリウムを含み、前記第1半導体領域の一部の上側に設けられた第2導電型の第2半導体領域と、
β‐酸化ガリウムを含み、前記第2半導体領域の一部の上側に設けられた前記第1導電型の第3半導体領域と、
前記第1半導体領域と前記第3半導体領域との間に位置する前記第2半導体領域の部分に絶縁膜を介して対向する制御電極と、
を備え、
前記第1導電型がn型であり、前記第2導電型がp型である場合、
前記第2半導体領域は、バンドギャップ制御元素をさらに含み、
前記第1導電型がp型であり、前記第2導電型がn型である場合、
前記半導体基板、前記第1半導体領域および前記第3半導体領域は、前記バンドギャップ制御元素をさらに含み、
前記バンドギャップ制御元素は、ホウ素、アルミニウム、およびインジウムの群から選択されることを特徴とする半導体装置。 - 前記第1導電型がn型であり、前記第2導電型がp型である場合、
前記半導体基板、前記第1半導体領域および前記第3半導体領域のうちの少なくとも一つは、前記バンドギャップ制御元素をさらに含み、
前記第1導電型がp型であり、前記第2導電型がn型である場合、
前記第2半導体領域は、前記バンドギャップ制御元素をさらに含む請求項1に記載の半導体装置。 - 導電型がp型の半導体領域を備え、
前記半導体領域は、β‐酸化ガリウムと、アクセプタとなる不純物元素と、バンドギャップ制御元素とを含み、
前記バンドギャップ制御元素は、ホウ素、アルミニウム、およびインジウムの群から選択されることを特徴とする半導体ウェーハ。 - 前記半導体領域は、半導体基板である請求項3に記載の半導体ウェーハ。
- β‐酸化ガリウムを含む半導体基板をさらに備え、
前記半導体領域は、前記半導体基板の上に設けられている請求項3に記載の半導体ウェーハ。
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JP2017202041A JP6933339B2 (ja) | 2017-10-18 | 2017-10-18 | 半導体装置および半導体ウェーハ |
DE102018217628.0A DE102018217628B4 (de) | 2017-10-18 | 2018-10-15 | Halbleiterbauelement und Halbleiterscheibe |
US16/160,298 US20190115434A1 (en) | 2017-10-18 | 2018-10-15 | Semiconductor device and semiconductor wafer |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021034623A (ja) * | 2019-08-27 | 2021-03-01 | 株式会社デンソー | 半導体装置の製造方法 |
JP2021170608A (ja) * | 2020-04-16 | 2021-10-28 | トヨタ自動車株式会社 | 半導体素子の製造方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013035845A1 (ja) * | 2011-09-08 | 2013-03-14 | 株式会社タムラ製作所 | Ga2O3系半導体素子 |
JP2014177400A (ja) * | 2011-09-08 | 2014-09-25 | Tamura Seisakusho Co Ltd | Ga含有酸化物層成長用β−Ga2O3系単結晶基板 |
JP2015227279A (ja) * | 2014-05-08 | 2015-12-17 | 株式会社Flosfia | 結晶性積層構造体および半導体装置 |
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CN106415845B (zh) | 2014-07-22 | 2019-12-10 | 株式会社Flosfia | 结晶性半导体膜和板状体以及半导体装置 |
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JP2014177400A (ja) * | 2011-09-08 | 2014-09-25 | Tamura Seisakusho Co Ltd | Ga含有酸化物層成長用β−Ga2O3系単結晶基板 |
JP2015227279A (ja) * | 2014-05-08 | 2015-12-17 | 株式会社Flosfia | 結晶性積層構造体および半導体装置 |
JP2016031953A (ja) * | 2014-07-25 | 2016-03-07 | 株式会社タムラ製作所 | 半導体素子及びその製造方法、半導体基板、並びに結晶積層構造体 |
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JP2021034623A (ja) * | 2019-08-27 | 2021-03-01 | 株式会社デンソー | 半導体装置の製造方法 |
WO2021038909A1 (ja) * | 2019-08-27 | 2021-03-04 | 株式会社デンソー | 半導体装置の製造方法 |
JP7230743B2 (ja) | 2019-08-27 | 2023-03-01 | 株式会社デンソー | 半導体装置の製造方法 |
JP2021170608A (ja) * | 2020-04-16 | 2021-10-28 | トヨタ自動車株式会社 | 半導体素子の製造方法 |
JP7238847B2 (ja) | 2020-04-16 | 2023-03-14 | トヨタ自動車株式会社 | 半導体素子の製造方法 |
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US20190115434A1 (en) | 2019-04-18 |
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