JP2020035821A - SiC基板の加工方法 - Google Patents
SiC基板の加工方法 Download PDFInfo
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- JP2020035821A JP2020035821A JP2018159320A JP2018159320A JP2020035821A JP 2020035821 A JP2020035821 A JP 2020035821A JP 2018159320 A JP2018159320 A JP 2018159320A JP 2018159320 A JP2018159320 A JP 2018159320A JP 2020035821 A JP2020035821 A JP 2020035821A
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- 239000000758 substrate Substances 0.000 title claims abstract description 144
- 238000003672 processing method Methods 0.000 title claims abstract description 5
- 230000001678 irradiating effect Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 25
- 230000035699 permeability Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 29
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 229910052799 carbon Inorganic materials 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000004299 exfoliation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/0006—Working by laser beam, e.g. welding, cutting or boring taking account of the properties of the material involved
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- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
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- B23K26/046—Automatically focusing the laser beam
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- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/062—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam
- B23K26/0622—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses
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- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
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- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
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- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
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- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/50—Working by transmitting the laser beam through or within the workpiece
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- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- B23K37/0408—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work for planar work
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- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
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- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
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- B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
- B24B7/228—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding thin, brittle parts, e.g. semiconductors, wafers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
- B28D5/0005—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by breaking, e.g. dicing
- B28D5/0011—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by breaking, e.g. dicing with preliminary treatment, e.g. weakening by scoring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
- B28D5/04—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by tools other than rotary type, e.g. reciprocating tools
- B28D5/047—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by tools other than rotary type, e.g. reciprocating tools by ultrasonic cutting
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- 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
- H01L21/26—Bombardment with radiation
- H01L21/263—Bombardment with radiation with high-energy radiation
- H01L21/268—Bombardment with radiation with high-energy radiation using electromagnetic radiation, e.g. laser radiation
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- 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
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
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- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
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Abstract
Description
パルスレーザー光線の波長 :1064nm
繰り返し周波数 :80kHz
平均出力 :3.2W
パルス幅 :4ns
スポット径 :3μm
集光器の開口数(NA) :0.43
インデックス量 :250〜400μm
送り速度 :120〜260mm/s
パルスレーザー光線の波長 :355nm
繰り返し周波数 :80kHz
平均出力 :1.5W
パルス幅 :4ns
スポット径 :3μm
集光器の開口数(NA) :0.43
インデックス量 :100μm
送り速度 :240mm/s
38:剥離層
40:サブストレート
44:SiC基板
44a:SiC基板の剥離面
52:デバイス
Claims (7)
- SiCインゴットからSiC基板を生成するSiC基板の加工方法であって、
SiCに対して透過性を有する波長のレーザー光線の集光点をSiCインゴットの上面から所望の内部位置に位置づけてレーザー光線をSiCインゴットに照射して剥離層を形成する剥離層形成工程と、
SiCインゴットの上面にサブストレートを貼着するサブストレート貼着工程と、
該剥離層に外力を付与してSiC基板を該サブストレートと共に剥離する剥離工程と、
から少なくとも構成されるSiC基板の加工方法。 - 該剥離層形成工程の前に、SiCインゴットの上面を平坦化する上面平坦化工程が含まれる請求項1記載のSiC基板の加工方法。
- 該剥離工程の後、該サブストレートに貼着されたSiC基板の剥離面を平坦に仕上げる剥離面平坦化工程が含まれる請求項1記載のSiC基板の加工方法。
- 該剥離面平坦化工程の後、SiC基板の平坦に仕上げられた剥離面にデバイスを形成するデバイス形成工程が含まれる請求項3記載のSiC基板の加工方法。
- デバイスが形成されたSiC基板から該サブストレートを除去するサブストレート除去工程が含まれる請求項4記載のSiC基板の加工方法。
- 該剥離層形成工程において、SiCインゴットの上面から所望の内部位置とは、SiC基板の上面にデバイスを形成できる必要不可欠な厚みのSiC基板が生成できる深さである請求項1記載のSiC基板の加工方法。
- SiCインゴットの上面から所望の内部位置とは、30〜100μmである請求項6記載のSiC基板の加工方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2018159320A JP7187215B2 (ja) | 2018-08-28 | 2018-08-28 | SiC基板の加工方法 |
CN201910720429.0A CN110871506B (zh) | 2018-08-28 | 2019-08-06 | SiC基板的加工方法 |
US16/545,677 US11018059B2 (en) | 2018-08-28 | 2019-08-20 | SiC substrate processing method |
DE102019212840.8A DE102019212840A1 (de) | 2018-08-28 | 2019-08-27 | SiC-SUBSTRATBEARBEITUNGSVERFAHREN |
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JP2018159320A JP7187215B2 (ja) | 2018-08-28 | 2018-08-28 | SiC基板の加工方法 |
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JP2020035821A true JP2020035821A (ja) | 2020-03-05 |
JP7187215B2 JP7187215B2 (ja) | 2022-12-12 |
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JP (1) | JP7187215B2 (ja) |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11024501B2 (en) | 2018-12-29 | 2021-06-01 | Cree, Inc. | Carrier-assisted method for parting crystalline material along laser damage region |
US11034056B2 (en) | 2019-05-17 | 2021-06-15 | Cree, Inc. | Silicon carbide wafers with relaxed positive bow and related methods |
US11219966B1 (en) | 2018-12-29 | 2022-01-11 | Wolfspeed, Inc. | Laser-assisted method for parting crystalline material |
US11826846B2 (en) | 2018-12-29 | 2023-11-28 | Wolfspeed, Inc. | Laser-assisted method for parting crystalline material |
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JP7166893B2 (ja) * | 2018-11-21 | 2022-11-08 | 株式会社ディスコ | ウエーハの生成方法 |
DE102020206233B3 (de) | 2020-05-18 | 2021-08-12 | Disco Corporation | Verfahren zum herstellen eines substrats und system zum herstellen eines substrats |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017100255A (ja) * | 2015-12-03 | 2017-06-08 | 株式会社ディスコ | ウエーハの加工方法 |
JP2017188586A (ja) * | 2016-04-06 | 2017-10-12 | 株式会社ディスコ | ウエーハの生成方法 |
JP2018125390A (ja) * | 2017-01-31 | 2018-08-09 | 株式会社ディスコ | ウエーハ生成方法 |
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JP2000094221A (ja) | 1998-09-24 | 2000-04-04 | Toyo Advanced Technologies Co Ltd | 放電式ワイヤソー |
JP2006142556A (ja) * | 2004-11-17 | 2006-06-08 | Sharp Corp | 基板製造装置および基板製造方法 |
US7811900B2 (en) * | 2006-09-08 | 2010-10-12 | Silicon Genesis Corporation | Method and structure for fabricating solar cells using a thick layer transfer process |
JP2015516672A (ja) * | 2012-02-26 | 2015-06-11 | ソレクセル、インコーポレイテッド | レーザ分割及び装置層移設のためのシステム及び方法 |
JP6399913B2 (ja) | 2014-12-04 | 2018-10-03 | 株式会社ディスコ | ウエーハの生成方法 |
JP6355540B2 (ja) * | 2014-12-04 | 2018-07-11 | 株式会社ディスコ | ウエーハの生成方法 |
JP6472347B2 (ja) * | 2015-07-21 | 2019-02-20 | 株式会社ディスコ | ウエーハの薄化方法 |
JP6562819B2 (ja) * | 2015-11-12 | 2019-08-21 | 株式会社ディスコ | SiC基板の分離方法 |
JP6773506B2 (ja) * | 2016-09-29 | 2020-10-21 | 株式会社ディスコ | ウエーハ生成方法 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017100255A (ja) * | 2015-12-03 | 2017-06-08 | 株式会社ディスコ | ウエーハの加工方法 |
JP2017188586A (ja) * | 2016-04-06 | 2017-10-12 | 株式会社ディスコ | ウエーハの生成方法 |
JP2018125390A (ja) * | 2017-01-31 | 2018-08-09 | 株式会社ディスコ | ウエーハ生成方法 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11024501B2 (en) | 2018-12-29 | 2021-06-01 | Cree, Inc. | Carrier-assisted method for parting crystalline material along laser damage region |
US11219966B1 (en) | 2018-12-29 | 2022-01-11 | Wolfspeed, Inc. | Laser-assisted method for parting crystalline material |
US11826846B2 (en) | 2018-12-29 | 2023-11-28 | Wolfspeed, Inc. | Laser-assisted method for parting crystalline material |
US11901181B2 (en) | 2018-12-29 | 2024-02-13 | Wolfspeed, Inc. | Carrier-assisted method for parting crystalline material along laser damage region |
US11911842B2 (en) | 2018-12-29 | 2024-02-27 | Wolfspeed, Inc. | Laser-assisted method for parting crystalline material |
US11034056B2 (en) | 2019-05-17 | 2021-06-15 | Cree, Inc. | Silicon carbide wafers with relaxed positive bow and related methods |
US11654596B2 (en) | 2019-05-17 | 2023-05-23 | Wolfspeed, Inc. | Silicon carbide wafers with relaxed positive bow and related methods |
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US11018059B2 (en) | 2021-05-25 |
DE102019212840A1 (de) | 2020-03-05 |
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