JP7201367B2 - SiC基板の加工方法 - Google Patents
SiC基板の加工方法 Download PDFInfo
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- JP7201367B2 JP7201367B2 JP2018160620A JP2018160620A JP7201367B2 JP 7201367 B2 JP7201367 B2 JP 7201367B2 JP 2018160620 A JP2018160620 A JP 2018160620A JP 2018160620 A JP2018160620 A JP 2018160620A JP 7201367 B2 JP7201367 B2 JP 7201367B2
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- substrate
- sic substrate
- sic
- separation
- laser beam
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P95/00—Generic processes or apparatus for manufacture or treatments not covered by the other groups of this subclass
- H10P95/11—Separation of active layers from substrates
- H10P95/112—Separation of active layers from substrates leaving a reusable substrate, e.g. epitaxial lift off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P34/00—Irradiation with electromagnetic or particle radiation of wafers, substrates or parts of devices
- H10P34/40—Irradiation with electromagnetic or particle radiation of wafers, substrates or parts of devices with high-energy radiation
- H10P34/42—Irradiation with electromagnetic or particle radiation of wafers, substrates or parts of devices with high-energy radiation with electromagnetic radiation, e.g. laser annealing
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P52/00—Grinding, lapping or polishing of wafers, substrates or parts of devices
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P54/00—Cutting or separating of wafers, substrates or parts of devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P90/00—Preparation of wafers not covered by a single main group of this subclass, e.g. wafer reinforcement
- H10P90/12—Preparing bulk and homogeneous wafers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/80—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials
- H10D62/83—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge
- H10D62/832—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge being Group IV materials comprising two or more elements, e.g. SiGe
- H10D62/8325—Silicon carbide
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/04—Apparatus for manufacture or treatment
- H10P72/0428—Apparatus for mechanical treatment or grinding or cutting
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical & Material Sciences (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Laser Beam Processing (AREA)
- Electromagnetism (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
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
2a:SiC基板の表面
2b:SiC基板の裏面
6a:第一のサブストレート
6b:第二のサブストレート
22:分離層
30a:第一のSiC基板
30b:第二のSiC基板
32a:第一のSiC基板の分離面
32b:第二のSiC基板の分離面
52:デバイス
Claims (1)
- 1枚のSiC基板から少なくとも2枚の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基板の内部に位置づけてレーザー光線をSiC基板に照射して分離層を形成する分離層形成工程と、
SiC基板の表面に接着剤を介して第一のサブストレートを貼着する第一のサブストレート貼着工程と、
SiC基板の裏面に接着剤を介して第二のサブストレートを貼着する第二のサブストレート貼着工程と、
該第一のサブストレート貼着工程と該第二のサブストレート貼着工程の後、該分離層に外力を付与してSiC基板を第一のSiC基板と第二のSiC基板とに分離する分離工程と、
該分離工程の後に該第一のサブストレートに貼着された該第一のSiC基板の分離面および該第二のサブストレートに貼着された該第二のSiC基板の分離面を平坦に仕上げる平坦化工程と、
該平坦化工程の後に該第一のSiC基板の平坦に仕上げられた分離面および該第二のSiC基板の平坦に仕上げられた分離面にデバイスを形成するデバイス形成工程と、
該デバイス形成工程の後に、該第一のSiC基板と該第一のサブストレートとの間の接着剤をレーザー光線の照射によって破壊し該第一のSiC基板から該第一のサブストレートを除去すると共に、該第二のSiC基板と該第二のサブストレートとの間の接着剤をレーザー光線の照射によって破壊し該第二のSiC基板から該第二のサブストレートを除去するサブストレート除去工程とを含むSiC基板の加工方法。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018160620A JP7201367B2 (ja) | 2018-08-29 | 2018-08-29 | SiC基板の加工方法 |
| CN201910733404.4A CN110875173A (zh) | 2018-08-29 | 2019-08-09 | SiC基板的加工方法 |
| US16/547,044 US10930561B2 (en) | 2018-08-29 | 2019-08-21 | SiC substrate processing method |
| DE102019212927.7A DE102019212927A1 (de) | 2018-08-29 | 2019-08-28 | Bearbeitungsverfahren für ein sic-substrat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018160620A JP7201367B2 (ja) | 2018-08-29 | 2018-08-29 | SiC基板の加工方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2020035873A JP2020035873A (ja) | 2020-03-05 |
| JP7201367B2 true JP7201367B2 (ja) | 2023-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018160620A Active JP7201367B2 (ja) | 2018-08-29 | 2018-08-29 | SiC基板の加工方法 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10930561B2 (ja) |
| JP (1) | JP7201367B2 (ja) |
| CN (1) | CN110875173A (ja) |
| DE (1) | DE102019212927A1 (ja) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US10576585B1 (en) | 2018-12-29 | 2020-03-03 | Cree, Inc. | Laser-assisted method for parting crystalline material |
| US10562130B1 (en) | 2018-12-29 | 2020-02-18 | Cree, Inc. | Laser-assisted method for parting crystalline material |
| US11024501B2 (en) | 2018-12-29 | 2021-06-01 | Cree, Inc. | Carrier-assisted method for parting crystalline material along laser damage region |
| US10611052B1 (en) | 2019-05-17 | 2020-04-07 | Cree, Inc. | Silicon carbide wafers with relaxed positive bow and related methods |
| JP7330771B2 (ja) * | 2019-06-14 | 2023-08-22 | 株式会社ディスコ | ウエーハの生成方法およびウエーハの生成装置 |
| JP7604137B2 (ja) * | 2020-09-04 | 2024-12-23 | 株式会社ディスコ | ウエーハの加工方法 |
| JP7636954B2 (ja) | 2021-04-22 | 2025-02-27 | キオクシア株式会社 | 半導体製造装置および半導体装置の製造方法 |
| JP2024130800A (ja) * | 2023-03-15 | 2024-09-30 | 信越半導体株式会社 | 半導体基板の製造方法、半導体基板、及び半導体装置 |
| CN119017568B (zh) * | 2024-10-10 | 2025-10-14 | 山东大学 | 一种上下双超声变频协同的碳化硅晶体剥片装置及剥片方法 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016035965A (ja) | 2014-08-01 | 2016-03-17 | リンテック株式会社 | 板状部材の分割装置および板状部材の分割方法 |
| JP2017057103A (ja) | 2015-09-15 | 2017-03-23 | 株式会社ディスコ | 窒化ガリウム基板の生成方法 |
| JP2017092314A (ja) | 2015-11-12 | 2017-05-25 | 株式会社ディスコ | SiC基板の分離方法 |
| JP2018125390A (ja) | 2017-01-31 | 2018-08-09 | 株式会社ディスコ | ウエーハ生成方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000094221A (ja) | 1998-09-24 | 2000-04-04 | Toyo Advanced Technologies Co Ltd | 放電式ワイヤソー |
| DE102010030358B4 (de) * | 2010-06-22 | 2014-05-22 | Osram Opto Semiconductors Gmbh | Verfahren zum Abtrennen einer Substratscheibe |
| JP6390898B2 (ja) * | 2014-08-22 | 2018-09-19 | アイシン精機株式会社 | 基板の製造方法、加工対象物の切断方法、及び、レーザ加工装置 |
| US10364510B2 (en) * | 2015-11-25 | 2019-07-30 | Sciocs Company Limited | Substrate for crystal growth having a plurality of group III nitride seed crystals arranged in a disc shape |
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2018
- 2018-08-29 JP JP2018160620A patent/JP7201367B2/ja active Active
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2019
- 2019-08-09 CN CN201910733404.4A patent/CN110875173A/zh active Pending
- 2019-08-21 US US16/547,044 patent/US10930561B2/en active Active
- 2019-08-28 DE DE102019212927.7A patent/DE102019212927A1/de active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016035965A (ja) | 2014-08-01 | 2016-03-17 | リンテック株式会社 | 板状部材の分割装置および板状部材の分割方法 |
| JP2017057103A (ja) | 2015-09-15 | 2017-03-23 | 株式会社ディスコ | 窒化ガリウム基板の生成方法 |
| JP2017092314A (ja) | 2015-11-12 | 2017-05-25 | 株式会社ディスコ | SiC基板の分離方法 |
| JP2018125390A (ja) | 2017-01-31 | 2018-08-09 | 株式会社ディスコ | ウエーハ生成方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102019212927A1 (de) | 2020-03-05 |
| US10930561B2 (en) | 2021-02-23 |
| CN110875173A (zh) | 2020-03-10 |
| US20200075415A1 (en) | 2020-03-05 |
| JP2020035873A (ja) | 2020-03-05 |
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