JP2022093135A - 半導体装置の製造方法 - Google Patents
半導体装置の製造方法 Download PDFInfo
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- JP2022093135A JP2022093135A JP2020206249A JP2020206249A JP2022093135A JP 2022093135 A JP2022093135 A JP 2022093135A JP 2020206249 A JP2020206249 A JP 2020206249A JP 2020206249 A JP2020206249 A JP 2020206249A JP 2022093135 A JP2022093135 A JP 2022093135A
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- semiconductor layer
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- semiconductor
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 99
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000009792 diffusion process Methods 0.000 claims abstract description 59
- 239000000758 substrate Substances 0.000 claims abstract description 38
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910001195 gallium oxide Inorganic materials 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000005468 ion implantation Methods 0.000 claims abstract description 14
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract description 13
- 239000011777 magnesium Substances 0.000 description 19
- 238000010438 heat treatment Methods 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 8
- 238000009826 distribution Methods 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000005684 electric field Effects 0.000 description 4
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000000370 acceptor Substances 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 229910052790 beryllium Inorganic materials 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
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/34—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies not provided for in groups H01L21/0405, H01L21/0445, H01L21/06, H01L21/16 and H01L21/18 with or without impurities, e.g. doping materials
- H01L21/42—Bombardment with radiation
- H01L21/423—Bombardment with radiation with high-energy radiation
- H01L21/425—Bombardment with radiation with high-energy radiation producing ion implantation
-
- 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
- H01L29/36—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the concentration or distribution of impurities in the bulk material
-
- 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
- H01L29/66969—Multistep manufacturing processes of devices having semiconductor bodies not comprising group 14 or group 13/15 materials
-
- 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
- H01L29/86—Types of semiconductor device ; Multistep manufacturing processes therefor controllable only by variation of the electric current supplied, or only the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched
- H01L29/861—Diodes
- H01L29/872—Schottky diodes
-
- 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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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
Description
Claims (3)
- 半導体装置の製造方法であって、
Snを含む酸化ガリウムにより構成された第1半導体層(14)と、前記第1半導体層上に配置されているとともに前記第1半導体層よりもSnの含有濃度が低いn型の酸化ガリウムにより構成された第2半導体層(16)とを有する半導体基板(12)を準備する工程と、
前記第2半導体層に2族元素をイオン注入するイオン注入工程と、
前記イオン注入工程後に前記半導体基板を熱処理することによって、前記第2半導体層の表面から前記第2半導体層と前記第1半導体層の界面までの範囲に前記2族元素が拡散した拡散領域(20)を形成する工程、
を有する製造方法。 - 前記第1半導体層におけるSnの濃度が1×1017/cm3以上である請求項1に記載の製造方法。
- 前記第2半導体層の表面に、前記拡散領域外の領域の表面から前記拡散領域の表面に至る範囲を覆い、端部が前記拡散領域上に配置されており、前記拡散領域外の前記領域にショットキー接触するショットキー電極を形成する工程をさらに有する請求項1または2に記載の製造方法。
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JP2020206249A JP7442428B2 (ja) | 2020-12-11 | 2020-12-11 | 半導体装置の製造方法 |
US17/535,276 US12027377B2 (en) | 2020-12-11 | 2021-11-24 | Manufacturing method of semiconductor device |
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JP2020206249A JP7442428B2 (ja) | 2020-12-11 | 2020-12-11 | 半導体装置の製造方法 |
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JP2022093135A true JP2022093135A (ja) | 2022-06-23 |
JP7442428B2 JP7442428B2 (ja) | 2024-03-04 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2024005152A1 (ja) * | 2022-06-29 | 2024-01-04 | 株式会社Flosfia | 半導体装置および半導体装置の製造方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2013102081A (ja) | 2011-11-09 | 2013-05-23 | Tamura Seisakusho Co Ltd | ショットキーバリアダイオード |
JP6344718B2 (ja) * | 2014-08-06 | 2018-06-20 | 株式会社タムラ製作所 | 結晶積層構造体及び半導体素子 |
JP5907465B2 (ja) * | 2014-08-29 | 2016-04-26 | 株式会社タムラ製作所 | 半導体素子及び結晶積層構造体 |
JP6758569B2 (ja) | 2015-03-20 | 2020-09-23 | 株式会社タムラ製作所 | 高耐圧ショットキーバリアダイオード |
JP6558385B2 (ja) | 2017-02-23 | 2019-08-14 | トヨタ自動車株式会社 | 半導体装置の製造方法 |
JP2018137394A (ja) | 2017-02-23 | 2018-08-30 | トヨタ自動車株式会社 | 半導体装置の製造方法 |
KR102592686B1 (ko) | 2018-02-12 | 2023-10-20 | 큐로미스, 인크 | 질화 갈륨 물질 내에서의 확산에 의해 도핑된 영역을 형성하는 방법 및 시스템 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2024005152A1 (ja) * | 2022-06-29 | 2024-01-04 | 株式会社Flosfia | 半導体装置および半導体装置の製造方法 |
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Publication number | Publication date |
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US20220189787A1 (en) | 2022-06-16 |
JP7442428B2 (ja) | 2024-03-04 |
US12027377B2 (en) | 2024-07-02 |
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