JP6770340B2 - ウエーハの生成方法 - Google Patents
ウエーハの生成方法 Download PDFInfo
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- JP6770340B2 JP6770340B2 JP2016107038A JP2016107038A JP6770340B2 JP 6770340 B2 JP6770340 B2 JP 6770340B2 JP 2016107038 A JP2016107038 A JP 2016107038A JP 2016107038 A JP2016107038 A JP 2016107038A JP 6770340 B2 JP6770340 B2 JP 6770340B2
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- H—ELECTRICITY
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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
- H01L21/70—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
- H01L21/77—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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- 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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- B23K26/0006—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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- B23K26/03—Observing, e.g. monitoring, the 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
- B23K26/08—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
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/083—Devices involving movement of the workpiece in at least one axial direction
- B23K26/0853—Devices involving movement of the workpiece in at least in two axial directions, e.g. in a plane
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- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/10—Devices involving relative movement between laser beam and workpiece using a fixed support, i.e. involving moving the laser beam
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- 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
- B23K26/36—Removing material
- B23K26/362—Laser etching
- B23K26/364—Laser etching for making a groove or trench, e.g. for scribing a break initiation groove
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- 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
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B23K26/36—Removing material
- B23K26/40—Removing material taking account of the properties of the material involved
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B23K26/53—Working by transmitting the laser beam through or within the workpiece for modifying or reforming the material inside the workpiece, e.g. for producing break initiation cracks
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/40—AIIIBV compounds wherein A is B, Al, Ga, In or Tl and B is N, P, As, Sb or Bi
- C30B29/403—AIII-nitrides
- C30B29/406—Gallium nitride
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- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B33/00—After-treatment of single crystals or homogeneous polycrystalline material with defined structure
- C30B33/06—Joining of crystals
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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
- H01L21/02002—Preparing wafers
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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
- H01L21/18—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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- 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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67092—Apparatus for mechanical treatment
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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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
- H01S3/10023—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by functional association of additional optical elements, e.g. filters, gratings, reflectors
- H01S3/1003—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by functional association of additional optical elements, e.g. filters, gratings, reflectors tunable optical elements, e.g. acousto-optic filters, tunable gratings
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- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
- B23K2101/40—Semiconductor devices
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- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
- H01S3/0085—Modulating the output, i.e. the laser beam is modulated outside the laser cavity
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Description
該間引き部では、1バーストパルスを構成するサブパルスの個数として、該集光点が位置付けられた該界面位置において最も長く破壊層が延びたサブパルスの個数が設定され、該個数により構成された1バーストパルスを生成するように間引く、GaNウエーハの生成方法が提供される。
レーザービームLBの波長 :1064nm
高周波パルスLB1の周波数 :64MHz
高周波パルスLB1のパルス時間幅 :315fs
高周波パルスLB1のパルス時間間隔 :15.6ns
レーザービームLBの繰り返し周波数 :100kHz
バーストパルスBPを構成するサブパルス数:3個(2〜10個から選択可能)
バーストパルスBPの時間幅 :31.2ns
増幅後のレーザービームLBの平均出力 :1W
1バーストパルス当たりのエネルギー :1/100,000(J)
開口数(NA) :0.8
加工送り速度 :100mm/s
界面の位置 :150μm(インゴット表面から)
インデックス :600μm
4:基台
6:保持手段
8:移動手段
10:レーザービーム照射手段
12:撮像手段
16:剥離手段
60:GaNインゴット
62:GaNウエーハ
Claims (1)
- GaNインゴットからGaNウエーハを生成するGaNウエーハの生成方法であって、
GaNインゴットを保持手段に保持する保持工程と、
該保持手段に保持されたGaNインゴットに対して透過性を有する波長のレーザービームの集光点をGaNインゴットの内部に位置付けて生成すべきGaNウエーハの厚みに相当する深さの界面に照射するレーザービーム照射工程と、
GaNウエーハをインゴットから剥離するウエーハ剥離工程と、
を少なくとも含み、
該レーザービームを発振する発振器は、高周波のパルスレーザーを発振するシーダと、該シーダが発振した高周波パルスを所定の繰り返し周波数で間引き複数個の高周波パルスをサブパルスとして1バーストパルスを生成する間引き部と、生成した該バーストパルスを増幅する増幅器と、から構成され、1バーストパルスを構成するサブパルスのパルス数を決定すべく、予め1条のレーザー加工を実施してレーザー加工痕を形成する試験的なレーザー加工を、サブパルスの個数を2〜10パルスの間で実施し、それぞれのサブパルスの個数に対応して形成される破壊層が水平方向に延びる平均長さを測定し、集光点が位置付けられた界面位置において最も長く破壊層が延びるサブパルスのパルス数を求める工程を実施し、
該間引き部では、1バーストパルスを構成するサブパルスの個数として、該集光点が位置付けられた該界面位置において最も長く破壊層が延びたサブパルスの個数が設定され、該個数により構成された1バーストパルスを生成するように間引く、GaNウエーハの生成方法。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016107038A JP6770340B2 (ja) | 2016-05-30 | 2016-05-30 | ウエーハの生成方法 |
TW106112631A TWI705868B (zh) | 2016-05-30 | 2017-04-14 | 晶圓的產生方法 |
CN201710341747.7A CN107442952B (zh) | 2016-05-30 | 2017-05-16 | 激光加工装置和GaN晶片的生成方法 |
KR1020170060934A KR102238569B1 (ko) | 2016-05-30 | 2017-05-17 | 레이저 가공 장치 및 웨이퍼의 생성 방법 |
US15/601,321 US10870169B2 (en) | 2016-05-30 | 2017-05-22 | Laser processing apparatus and wafer producing method |
DE102017208953.9A DE102017208953A1 (de) | 2016-05-30 | 2017-05-29 | Laserbearbeitungsvorrichtung und waferherstellungsverfahren |
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JP2016107038A JP6770340B2 (ja) | 2016-05-30 | 2016-05-30 | ウエーハの生成方法 |
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JP2017216266A JP2017216266A (ja) | 2017-12-07 |
JP6770340B2 true JP6770340B2 (ja) | 2020-10-14 |
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US (1) | US10870169B2 (ja) |
JP (1) | JP6770340B2 (ja) |
KR (1) | KR102238569B1 (ja) |
CN (1) | CN107442952B (ja) |
DE (1) | DE102017208953A1 (ja) |
TW (1) | TWI705868B (ja) |
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DE102018133083A1 (de) * | 2018-12-20 | 2020-06-25 | Carl Zeiss Jena Gmbh | Vorrichtung und Verfahren zum geregelten Bearbeiten eines Werkstückes mit einer Bearbeitungsstrahlung |
JP7339031B2 (ja) | 2019-06-28 | 2023-09-05 | 株式会社ディスコ | レーザー加工装置 |
JP7523932B2 (ja) * | 2020-03-30 | 2024-07-29 | 株式会社ディスコ | レーザー加工装置 |
JP7500261B2 (ja) * | 2020-04-10 | 2024-06-17 | 株式会社ディスコ | ウエーハの生成方法 |
JP7429080B1 (ja) | 2023-11-28 | 2024-02-07 | 有限会社ドライケミカルズ | 半導体結晶ウェハの製造装置および製造方法 |
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TW417315B (en) * | 1998-06-18 | 2001-01-01 | Sumitomo Electric Industries | GaN single crystal substrate and its manufacture method of the same |
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JP2014104484A (ja) * | 2012-11-27 | 2014-06-09 | Disco Abrasive Syst Ltd | レーザー加工装置 |
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KR20170135684A (ko) | 2017-12-08 |
JP2017216266A (ja) | 2017-12-07 |
TWI705868B (zh) | 2020-10-01 |
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CN107442952B (zh) | 2021-08-03 |
TW201805099A (zh) | 2018-02-16 |
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