JP5103631B2 - 加工方法 - Google Patents
加工方法 Download PDFInfo
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- JP5103631B2 JP5103631B2 JP2010068021A JP2010068021A JP5103631B2 JP 5103631 B2 JP5103631 B2 JP 5103631B2 JP 2010068021 A JP2010068021 A JP 2010068021A JP 2010068021 A JP2010068021 A JP 2010068021A JP 5103631 B2 JP5103631 B2 JP 5103631B2
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- 238000003672 processing method Methods 0.000 title claims description 23
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 52
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 50
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 22
- 239000010453 quartz Substances 0.000 claims description 21
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000012670 alkaline solution Substances 0.000 claims description 9
- 230000001678 irradiating effect Effects 0.000 claims description 8
- 239000000243 solution Substances 0.000 claims description 7
- 229910003460 diamond Inorganic materials 0.000 claims description 5
- 239000010432 diamond Substances 0.000 claims description 5
- 229910052594 sapphire Inorganic materials 0.000 claims description 5
- 239000010980 sapphire Substances 0.000 claims description 5
- 229910002601 GaN Inorganic materials 0.000 claims description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 229910017083 AlN Inorganic materials 0.000 claims 1
- 229910052581 Si3N4 Inorganic materials 0.000 claims 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims 1
- 239000000758 substrate Substances 0.000 description 47
- 239000010410 layer Substances 0.000 description 27
- 229910004298 SiO 2 Inorganic materials 0.000 description 14
- 238000000034 method Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 5
- 230000003746 surface roughness Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- QOSATHPSBFQAML-UHFFFAOYSA-N hydrogen peroxide;hydrate Chemical compound O.OO QOSATHPSBFQAML-UHFFFAOYSA-N 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 238000006479 redox reaction Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000003486 chemical etching Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000002834 transmittance Methods 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
- H01L21/04—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
-
- 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
- H01L21/02002—Preparing wafers
- H01L21/02005—Preparing bulk and homogeneous wafers
- H01L21/02008—Multistep processes
- H01L21/0201—Specific process step
- H01L21/02024—Mirror polishing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/042—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor
-
- 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
-
- 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
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)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Weting (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Description
即ち、被加工物の表面に形成された軟質な層については、(1)アルカリ溶液によって化学的に除去され、若しくは、(2)加工部材によって機械的に除去され、若しくは、(3)アルカリ溶液によって化学的に除去されると共に加工部材によって機械的に除去されることとなる。
1.第1の実施の形態
2.第2の実施の形態
図1は本発明を適用した加工方法の一例を実施するための加工装置を説明するための模式図であり、ここで示す加工装置(ポリッシング装置)1は、水酸化カリウム溶液(0.1mol/リットル)2を入れた加工槽3と、SiC基板8を保持する試料ホルダー4と、紫外光を照射するための紫外光光源5を有している。なお、SiC基板は被加工物の一例である。
先ず、SiC基板8に紫外光を照射することで、図2(A)で示す様に、SiC基板8よりも軟質な層9が形成される。具体的には、SiC基板8に紫外光を照射することで、SiC基板8の表層にSiO2層9が形成される。
即ち、加工部材(Fe)が過酸化水素水(H2O2)と反応して生成されるOHラジカル(OH・;ヒドロキシルラジカル)と過酸化水素水(H2O2)中の溶存酸素によってSiC基板の表面を酸化してSiO2層を生成した上で、加工部材を往復させることでSiO2層を除去する場合の加工レートを示したものが、図3中符号Aである。なお、こうした技術は上述の特許文献1に記載がなされている。
即ち、紫外光の影響で過酸化水素水(H2O2)が分解されて生成されるOHラジカルと過酸化水素水(H2O2)中の溶存酸素によってSiC基板の表面を酸化してSiO2層を生成した上で、石英を往復させることでSiO2層を除去する場合の加工レートを示したものが、図3中符号Bである。
上記した第1の実施の形態では、紫外光によってのみSiO2層を形成していたが、紫外光と共にOHラジカルによってSiO2層を形成するようにしても良い。
即ち、加工槽3の中に水酸化カリウム溶液2と共に過酸化水素水(H2O2)を入れておいても良い。
H2O2+UV(紫外光)→2OH・
SiC+4OH・+O2→SiO2+2H2O+CO2↑
2水酸化カリウム溶液
3加工槽
3a合成石英定盤
3b側壁
4試料ホルダー
5紫外光光源
6モーター
7a回転軸
7b回転軸
8SiC基板
9SiO2層
Claims (3)
- アルカリ溶液中に配置された被加工物の表面に、同被加工物のバンドギャップよりも大きなエネルギーを有する紫外光を照射すると共に、前記紫外光が照射された前記被加工物の表面に合成石英若しくはサファイアで構成された加工部材を接触させた状態で前記被加工物と前記加工部材を相対的に変位させる工程を備える加工方法であって、
前記紫外光は前記加工部材を介して前記被加工物に照射する
加工方法。 - 前記アルカリ溶液は、水酸化カリウム溶液、水酸化ナトリウム溶液、アルカリ電解水若しくは水酸化カルシウム溶液のうち少なくとも1つを含んでいる
請求項1に記載の加工方法。 - 前記被加工物は、シリコンカーバイド、窒化ケイ素、GaN、ダイヤモンド、サファイア、AlNのうちいずれか1つからなる
請求項1または請求項2に記載の加工方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010068021A JP5103631B2 (ja) | 2010-03-24 | 2010-03-24 | 加工方法 |
US13/636,265 US8877082B2 (en) | 2010-03-24 | 2011-03-18 | Method of processing surface of high-performance materials which are difficult to process |
PCT/JP2011/056597 WO2011118532A1 (ja) | 2010-03-24 | 2011-03-18 | 加工方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010068021A JP5103631B2 (ja) | 2010-03-24 | 2010-03-24 | 加工方法 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2011200944A JP2011200944A (ja) | 2011-10-13 |
JP2011200944A5 JP2011200944A5 (ja) | 2012-06-28 |
JP5103631B2 true JP5103631B2 (ja) | 2012-12-19 |
Family
ID=44673086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010068021A Expired - Fee Related JP5103631B2 (ja) | 2010-03-24 | 2010-03-24 | 加工方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8877082B2 (ja) |
JP (1) | JP5103631B2 (ja) |
WO (1) | WO2011118532A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5990444B2 (ja) * | 2012-11-01 | 2016-09-14 | 昭和電工株式会社 | 炭化珪素半導体装置の製造方法 |
JP6106419B2 (ja) * | 2012-12-12 | 2017-03-29 | 昭和電工株式会社 | SiC基板の製造方法 |
JP6240943B2 (ja) * | 2015-11-19 | 2017-12-06 | 株式会社岡本工作機械製作所 | 研磨装置およびそれを用いたGaN基板の研磨加工方法 |
JP6732213B2 (ja) * | 2016-11-16 | 2020-07-29 | 日本電気硝子株式会社 | ガラス基板の製造方法 |
JP7118417B2 (ja) * | 2018-08-31 | 2022-08-16 | 株式会社東邦鋼機製作所 | 光照射触媒基準エッチング装置 |
JP7204105B2 (ja) * | 2019-02-13 | 2023-01-16 | 国立大学法人 熊本大学 | 加工方法及び加工装置 |
CN109866084A (zh) * | 2019-04-08 | 2019-06-11 | 北京建筑大学 | 一种uv光催化辅助化学机械抛光装置及抛光方法 |
JP7383339B2 (ja) * | 2019-10-16 | 2023-11-20 | 株式会社ディスコ | 被加工物の加工方法及び加工装置 |
CN113334242B (zh) * | 2021-06-24 | 2022-11-04 | 大连理工大学 | 金刚石晶片紫外光辅助化学机械抛光的加工装置及工艺 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4399550B2 (ja) * | 2001-01-23 | 2010-01-20 | 株式会社エム光・エネルギー開発研究所 | 光学部品の研磨方法 |
US20050269577A1 (en) * | 2004-06-08 | 2005-12-08 | Matsushita Electric Industrial Co., Ltd. | Surface treatment method and surface treatment device |
JP2006024910A (ja) * | 2004-06-08 | 2006-01-26 | Matsushita Electric Ind Co Ltd | 表面処理方法及び表面処理装置 |
US7585772B2 (en) * | 2006-07-26 | 2009-09-08 | Freiberger Compound Materials Gmbh | Process for smoothening III-N substrates |
JP4982742B2 (ja) | 2006-09-13 | 2012-07-25 | 国立大学法人 熊本大学 | 磁性微粒子を用いた触媒化学加工方法及び装置 |
JP4887266B2 (ja) * | 2007-10-15 | 2012-02-29 | 株式会社荏原製作所 | 平坦化方法 |
-
2010
- 2010-03-24 JP JP2010068021A patent/JP5103631B2/ja not_active Expired - Fee Related
-
2011
- 2011-03-18 WO PCT/JP2011/056597 patent/WO2011118532A1/ja active Application Filing
- 2011-03-18 US US13/636,265 patent/US8877082B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO2011118532A1 (ja) | 2011-09-29 |
US8877082B2 (en) | 2014-11-04 |
US20130196513A1 (en) | 2013-08-01 |
JP2011200944A (ja) | 2011-10-13 |
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