JP5566803B2 - 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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- JP5566803B2 JP5566803B2 JP2010163958A JP2010163958A JP5566803B2 JP 5566803 B2 JP5566803 B2 JP 5566803B2 JP 2010163958 A JP2010163958 A JP 2010163958A JP 2010163958 A JP2010163958 A JP 2010163958A JP 5566803 B2 JP5566803 B2 JP 5566803B2
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- 239000004065 semiconductor Substances 0.000 title claims description 47
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000000758 substrate Substances 0.000 claims description 46
- 238000005530 etching Methods 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 22
- 238000009616 inductively coupled plasma Methods 0.000 claims description 13
- 239000000460 chlorine Substances 0.000 claims description 12
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 9
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 9
- 229910052801 chlorine Inorganic materials 0.000 claims description 9
- 229910052731 fluorine Inorganic materials 0.000 claims description 9
- 239000011737 fluorine Substances 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000001312 dry etching Methods 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910003902 SiCl 4 Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 12
- 229910010271 silicon carbide Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000001020 plasma etching Methods 0.000 description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 229910002704 AlGaN Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229940081330 tena Drugs 0.000 description 1
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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
- H01L21/70—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
- H01L21/76898—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics formed through a semiconductor substrate
-
- 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
- H01L21/18—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 comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/30604—Chemical etching
- H01L21/30612—Etching of AIIIBV compounds
- H01L21/30621—Vapour phase etching
-
- 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
- H01L21/18—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 comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/3065—Plasma etching; Reactive-ion etching
-
- 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
- H01L29/16—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic Table
- H01L29/1608—Silicon carbide
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Drying Of Semiconductors (AREA)
Description
12 半導体層
14 ビア受けパッド
20 ビアホール
22 第1ビアホール
24 第2ビアホール
30 金属層
32 シード層
34 めっき層
100 半導体装置
Claims (5)
- SiCを材料とする基板の上にGaN層が設けられ、前記GaN層の上にビア受けパッドが設けられた半導体装置の製造方法であって、
フッ素系のガスを用い、前記GaN層をストッパ層として前記基板の下側からエッチングを行い、前記基板を貫通する第1ビアホールを形成する工程と、
前記第1ビアホールの形成とは異なるエッチャントである塩素系のガスを用い、前記ビア受けパッドをストッパ層として前記GaN層の下側からエッチングを行い、前記GaN層を貫通する第2ビアホールを形成する工程と、
を有し、
前記第1ビアホール及び前記第2ビアホールを形成する工程は、誘導結合プラズマ方式またはトランス結合プラズマ方式によるドライエッチングを行う工程を含み、エッチング時におけるアンテナパワーは2500W〜5000W、バイアスパワーは300W〜500Wであり、
前記第1ビアホールを形成する工程は、前記基板の下面に形成され、Cu、Ni、Ptのいずれかを含むマスク層をマスクとしてエッチングを行う工程を含み、
前記第2ビアホールを形成する工程は、前記基板をマスクとしてエッチングを行う工程を含むことを特徴とする半導体装置の製造方法。 - 前記フッ素系のガスは、SF6を含むことを特徴とする請求項1に記載の半導体装置の製造方法。
- 前記塩素系のガスは、Cl2またはSiCl4を含むことを特徴とする請求項1または2に記載の半導体装置の製造方法。
- 前記基板の厚みは、50μm〜150μmであることを特徴とする請求項1〜3のいずれかに記載の半導体装置の製造方法。
- 前記ビア受けパッドは、Niを含むことを特徴とする請求項1〜4のいずれかに記載の半導体装置の製造方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010163958A JP5566803B2 (ja) | 2010-07-21 | 2010-07-21 | 半導体装置の製造方法 |
US13/185,002 US8541298B2 (en) | 2010-07-21 | 2011-07-18 | Method for fabricating semiconductor device |
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JP2010163958A JP5566803B2 (ja) | 2010-07-21 | 2010-07-21 | 半導体装置の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012028442A JP2012028442A (ja) | 2012-02-09 |
JP5566803B2 true JP5566803B2 (ja) | 2014-08-06 |
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JP2010163958A Active JP5566803B2 (ja) | 2010-07-21 | 2010-07-21 | 半導体装置の製造方法 |
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US (1) | US8541298B2 (ja) |
JP (1) | JP5566803B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10297531B2 (en) | 2017-03-29 | 2019-05-21 | Toshiba Memory Corporation | Method for producing semiconductor device and semiconductor device |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011033516A1 (en) * | 2009-09-20 | 2011-03-24 | Viagan Ltd. | Wafer level packaging of electronic devices |
US20150099358A1 (en) * | 2013-10-07 | 2015-04-09 | Win Semiconductors Corp. | Method for forming through wafer vias in semiconductor devices |
US20160071801A1 (en) * | 2014-09-04 | 2016-03-10 | Taiwan Semiconductor Manufacturing Co., Ltd. | Semiconductor device etching for rc delay improvement |
US9660603B2 (en) * | 2015-04-09 | 2017-05-23 | Texas Instruments Incorporated | Sloped termination in molybdenum layers and method of fabricating |
CN105355550B (zh) * | 2015-12-02 | 2018-05-01 | 中国科学院微电子研究所 | Iii族氮化物低损伤刻蚀方法 |
US10224285B2 (en) * | 2017-02-21 | 2019-03-05 | Raytheon Company | Nitride structure having gold-free contact and methods for forming such structures |
US11121229B2 (en) | 2017-12-28 | 2021-09-14 | Vanguard International Semiconductor Corporation | Methods of fabricating semiconductor structures and high electron mobility transistors |
JP2022089516A (ja) * | 2020-12-04 | 2022-06-16 | 富士通株式会社 | 半導体装置、半導体装置の製造方法及び電子装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
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US7125786B2 (en) * | 2000-04-11 | 2006-10-24 | Cree, Inc. | Method of forming vias in silicon carbide and resulting devices and circuits |
JP4030982B2 (ja) | 2004-05-10 | 2008-01-09 | ユーディナデバイス株式会社 | 半導体装置および半導体装置の製造方法 |
DE102005042074A1 (de) * | 2005-08-31 | 2007-03-08 | Forschungsverbund Berlin E.V. | Verfahren zur Erzeugung von Durchkontaktierungen in Halbleiterwafern |
JP4612534B2 (ja) * | 2005-12-01 | 2011-01-12 | 三菱電機株式会社 | 半導体装置の製造方法 |
JP4516538B2 (ja) * | 2006-03-01 | 2010-08-04 | 住友電工デバイス・イノベーション株式会社 | 半導体装置の製造方法 |
JP5298559B2 (ja) * | 2007-06-29 | 2013-09-25 | 富士通株式会社 | 半導体装置及びその製造方法 |
US8003525B2 (en) * | 2007-06-29 | 2011-08-23 | Fujitsu Limited | Semiconductor device and method of manufacturing the same |
US7989277B1 (en) * | 2007-09-11 | 2011-08-02 | Hrl Laboratories, Llc | Integrated structure with transistors and Schottky diodes and process for fabricating the same |
JP5262185B2 (ja) * | 2008-02-29 | 2013-08-14 | 富士通株式会社 | 半導体装置の製造方法 |
JP5546194B2 (ja) * | 2009-10-01 | 2014-07-09 | 住友電工デバイス・イノベーション株式会社 | 半導体装置の製造方法 |
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2010
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US10297531B2 (en) | 2017-03-29 | 2019-05-21 | Toshiba Memory Corporation | Method for producing semiconductor device and semiconductor device |
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Publication number | Publication date |
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US8541298B2 (en) | 2013-09-24 |
JP2012028442A (ja) | 2012-02-09 |
US20120021598A1 (en) | 2012-01-26 |
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