JP5846764B2 - ウエーハの加工方法 - Google Patents
ウエーハの加工方法 Download PDFInfo
- Publication number
- JP5846764B2 JP5846764B2 JP2011123532A JP2011123532A JP5846764B2 JP 5846764 B2 JP5846764 B2 JP 5846764B2 JP 2011123532 A JP2011123532 A JP 2011123532A JP 2011123532 A JP2011123532 A JP 2011123532A JP 5846764 B2 JP5846764 B2 JP 5846764B2
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- Prior art keywords
- wafer
- division
- dividing
- groove
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- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000003672 processing method Methods 0.000 title claims description 12
- 238000000034 method Methods 0.000 claims description 14
- 230000001678 irradiating effect Effects 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 235000012431 wafers Nutrition 0.000 description 81
- 230000003287 optical effect Effects 0.000 description 34
- 238000003754 machining Methods 0.000 description 7
- 229910052594 sapphire Inorganic materials 0.000 description 6
- 239000010980 sapphire Substances 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- 239000000758 substrate Substances 0.000 description 5
- 239000002390 adhesive tape Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000003331 infrared imaging Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- 229910009372 YVO4 Inorganic materials 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000011218 segmentation Effects 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
- H01L21/70—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
-
- 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
- B23K26/362—Laser etching
- B23K26/364—Laser etching for making a groove or trench, e.g. for scribing a break initiation groove
-
- 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
- B23K26/40—Removing material taking account of the properties of the material involved
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
- B23K2101/40—Semiconductor devices
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Laser Beam Processing (AREA)
- Dicing (AREA)
Description
光源 :YAGパルスレーザ
波長 :355nm(YAGレーザの第3高調波)
平均出力 :0.5W
加工深さ :10μm
繰り返し周波数 :100kHz
スポット径 :5μm
送り速度 :150mm/s
光源 :YAGパルスレーザ
波長 :355nm(YAGレーザの第3高調波)
平均出力 :1.5W
加工深さ :30μm
繰り返し周波数 :100kHz
スポット径 :5μm
送り速度 :150mm/s
光源 :YAGパルスレーザ
波長 :355nm(YAGレーザの第3高調波)
平均出力 :1.5W
加工深さ :10μm
繰り返し周波数 :100kHz
スポット径 :5μm
送り速度 :350mm/s
光源 :YAGパルスレーザ
波長 :355nm(YAGレーザの第3高調波)
平均出力 :1.5W
加工深さ :30μm
繰り返し周波数 :100kHz
スポット径 :5μm
送り速度 :150mm/s
F 環状フレーム
2 レーザ加工装置
11 光デバイスウエーハ
17 分割予定ライン(ストリート)
19 光デバイス
21a,21b 第1の分割溝
23 第2の分割溝
28 チャックテーブル
34 レーザビーム照射ユニット
36 集光器
84 分割治具
Claims (2)
- 複数のデバイスが分割予定ラインによって区画されて表面に形成されたウエーハの加工方法であって、
ウエーハに対して吸収性を有する波長のレーザビームを分割予定ラインに沿って照射して分割の起点となる分割溝を形成する分割溝形成工程と、
複数の分割溝が形成されたウエーハに外力を付与してウエーハを個々のデバイスに分割する分割工程と、を具備し、
該分割溝形成工程は、
複数のデバイスをブロックとして区画する分割予定ラインとして、少なくとも中央部の分割予定ラインを選定する分割予定ライン選定工程と、
選定された分割予定ラインに対して第1のエネルギーのレーザビームを照射して分割の起点となる第1の分割溝を形成する第1分割溝形成工程と、
選定された分割予定ライン以外の分割予定ラインに対して該第1のエネルギーより強い第2のエネルギーのレーザビームを照射して分割の起点となる第2の分割溝を形成する第2分割溝形成工程と、
を含むことを特徴とするウエーハの加工方法。 - 前記第2分割溝形成工程においては、前記第1の分割溝を避けて前記第2の分割溝を形成する請求項1記載のウエーハの加工方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011123532A JP5846764B2 (ja) | 2011-06-01 | 2011-06-01 | ウエーハの加工方法 |
US13/483,996 US8796113B2 (en) | 2011-06-01 | 2012-05-30 | Laser processing method for wafer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011123532A JP5846764B2 (ja) | 2011-06-01 | 2011-06-01 | ウエーハの加工方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012253139A JP2012253139A (ja) | 2012-12-20 |
JP5846764B2 true JP5846764B2 (ja) | 2016-01-20 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011123532A Active JP5846764B2 (ja) | 2011-06-01 | 2011-06-01 | ウエーハの加工方法 |
Country Status (2)
Country | Link |
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US (1) | US8796113B2 (ja) |
JP (1) | JP5846764B2 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9016552B2 (en) * | 2013-03-15 | 2015-04-28 | Sanmina Corporation | Method for forming interposers and stacked memory devices |
CN105848841B (zh) * | 2013-12-27 | 2017-07-28 | 旭硝子株式会社 | 脆性板的加工方法及脆性板的加工装置 |
JP6433264B2 (ja) * | 2014-11-27 | 2018-12-05 | 株式会社ディスコ | 透過レーザービームの検出方法 |
JP6553940B2 (ja) * | 2015-05-15 | 2019-07-31 | 株式会社ディスコ | レーザー加工装置 |
JP6830739B2 (ja) * | 2017-08-22 | 2021-02-17 | 株式会社ディスコ | チップの製造方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06224298A (ja) * | 1993-01-26 | 1994-08-12 | Sony Corp | ダイシング方法 |
JPH10305420A (ja) | 1997-03-04 | 1998-11-17 | Ngk Insulators Ltd | 酸化物単結晶からなる母材の加工方法、機能性デバイスの製造方法 |
US7005317B2 (en) | 2003-10-27 | 2006-02-28 | Intel Corporation | Controlled fracture substrate singulation |
JP4536407B2 (ja) * | 2004-03-30 | 2010-09-01 | 浜松ホトニクス株式会社 | レーザ加工方法及び加工対象物 |
JP4942313B2 (ja) * | 2005-07-07 | 2012-05-30 | 株式会社ディスコ | ウエーハのレーザー加工方法 |
JP4599243B2 (ja) * | 2005-07-12 | 2010-12-15 | 株式会社ディスコ | レーザー加工装置 |
JP4777830B2 (ja) * | 2006-06-06 | 2011-09-21 | 株式会社ディスコ | ウエーハの分割方法 |
JP5171294B2 (ja) * | 2008-02-06 | 2013-03-27 | 株式会社ディスコ | レーザ加工方法 |
US8211781B2 (en) * | 2008-11-10 | 2012-07-03 | Stanley Electric Co., Ltd. | Semiconductor manufacturing method |
JP5473414B2 (ja) * | 2009-06-10 | 2014-04-16 | 株式会社ディスコ | レーザ加工装置 |
JP2011003757A (ja) * | 2009-06-19 | 2011-01-06 | Disco Abrasive Syst Ltd | ウエーハの分割方法 |
JP5281545B2 (ja) * | 2009-11-04 | 2013-09-04 | スタンレー電気株式会社 | 半導体発光素子の製造方法 |
JP5285741B2 (ja) * | 2011-05-19 | 2013-09-11 | 三星ダイヤモンド工業株式会社 | 半導体ウェハ及びその加工方法 |
-
2011
- 2011-06-01 JP JP2011123532A patent/JP5846764B2/ja active Active
-
2012
- 2012-05-30 US US13/483,996 patent/US8796113B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP2012253139A (ja) | 2012-12-20 |
US8796113B2 (en) | 2014-08-05 |
US20120309169A1 (en) | 2012-12-06 |
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