JP6321843B2 - 透明ワークを分離する方法 - Google Patents
透明ワークを分離する方法 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
- C03B33/0222—Scoring using a focussed radiation beam, e.g. laser
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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
- B23K26/02—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
- B23K26/0624—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses using ultrashort pulses, i.e. pulses of 1 ns or less
-
- 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
- B23K26/08—Devices involving relative movement between laser beam and workpiece
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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
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/083—Devices involving movement of the workpiece in at least one axial direction
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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
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special environment or atmosphere, e.g. in an enclosure
- B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special environment or atmosphere, e.g. in an enclosure in an atmosphere of particular gases
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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
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special environment or atmosphere, e.g. in an enclosure
- B23K26/127—Working by laser beam, e.g. welding, cutting or boring in a special environment or atmosphere, e.g. in an enclosure in an enclosure
-
- 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
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
-
- 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
- B23K26/38—Removing material by boring or cutting
-
- 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
- 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
- B23K26/402—Removing material taking account of the properties of the material involved involving non-metallic material, e.g. isolators
-
- 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
- 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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- 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
-
- 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
- B23K2101/18—Sheet panels
-
- 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 materials other than metals or composite materials
-
- 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 materials other than metals or composite materials
- B23K2103/52—Ceramics
-
- 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 materials other than metals or composite materials
- B23K2103/54—Glass
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- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
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- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Laser Beam Processing (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Description
1)フィラメント形成(filamentation)を用いる切削/穿孔:フィラメントの形成はプロセスに起因して不均一に起こる:初めの高エネルギー密度に起因して、フィラメントを生成するレーザービームの入射側では、ワークのより深い後続のプラズマスポットに比べて比較的大きいプラズマ体積が着火し、すなわち、ワークの損傷溝(形成されるフィラメントに対応する)はテーパー状になる。このように、引き起こされる損傷(微小亀裂)は、レーザービームの入射側において出射側よりも一層強大になる。指向性強度試験(4点曲げ試験等)によると、0.7mmのガラス厚さでも縁強度の著しい差が明らかである。
2)プラズマ生成スポットの空間幾何形状:自己収束によって生じるプラズマ生成スポットは、球対称のエネルギー分布を伴う略球対称形状である。この形状は、プラズマ体積の周囲に方向とは無関係にランダム分布した微小亀裂をもたらす。結果として、亀裂は後の破断縁に突出し、強度減少作用を有する。
3)自発的な破断:脆い材料のフィラメント形成中、内在応力によって、ワークの制御されない自発的な破断がプロセス中に起こり、結果として廃棄率が増加する。さらに、自発的な破断はワークの位置の変化をもたらし、それにより、自動加工が妨げられるか又は更には不可能になる。
基板を保護ガス雰囲気にさらすステップと、
レーザー放射の波長域において透明である基板に超短パルスレーザー放射を向けるステップと、
レーザー照射により既定の基板体積の深さにおけるフィラメント状の材料改質部を生成するステップと、
材料改質部によって規定される分離線に沿って基板を破断するステップと、
を含む。
基板を収容するガス密チャンバーと、
超短パルスレーザー光源と、
基板及び/又はレーザー光源を互いに対して移動させる手段と、
を備え、それとともに、
基板は保護ガス雰囲気にさらされ、
レーザー放射の波長域において透明である基板に超短パルスレーザー放射が向けられ、
レーザー照射により、フィラメント状の材料改質部が既定の体積において生成され、基板の深さ方向に延び、
材料改質部によって規定される分離線に沿って分離が達成される。
Claims (7)
- 線(20)に沿って透明ワーク(2)に一連の線状の損傷形状部(14)を生成する方法であって、
a)超短パルスレーザー(10)及び収束光学系(11)を備えるレーザー加工装置(1)を準備するステップであって、前記超短パルスレーザーの放射の波長は前記ワーク(2)の透過域内である、ステップと、
b)前記ワーク(2)の或る場所に損傷形状部(14)を生成する間、前記収束光学系(11)を前記ワーク(2)に向けるように、またその後、生成される損傷形状部(14)の場所の前記線(20)に従って、前記収束光学系(11)及びワークテーブル(3)を互いに対して漸進的に移動させるように、前記ワークテーブル(3)及び移動手段を準備するステップと、
c)前記収束光学系(11)を損傷形状部(14)の各それぞれの場所に向けている間、2つ以上の連続した期間においてレーザーパルスを放出するステップであって、各期間中の前記レーザーパルスのエネルギーは、前記透明ワーク(2)において対応するフィラメント形状部(4、5、6)が生成されるような大きさであり、前記連続したレーザーパルス期間は、前記ワーク(2)を横断方向に貫通する連続的に整列したフィラメント形状部(4、5、6)を生成する、ステップと、
を含み、前記収束光学系(11)は、線状の損傷形状部の場所の前記線(20)に沿った方向に、該方向に対する横断方向よりも大きい寸法の断面形状を有する放射ビーム(12)を生成する、方法。 - 前記ワーク(2)に対する前記収束光学系(11)の移動の増分は、前記一連の線状の損傷形状部に沿った前記フィラメント形状部(4、5、6)の横寸法の大きさ程度である、請求項1に記載の方法。
- 損傷形状部(14)の各場所における連続したレーザーパルス期間の数は、前記ワークの局所的な厚さに応じて選択される、請求項1又は2に記載の方法。
- 前記収束光学系(11)は、前記放射ビームの前記より大きい断面寸法に対して調整可能であり、それにより、前記より大きい断面寸法の整列は損傷形状部の場所の前記線に沿うように調整される、請求項1に記載の方法。
- 前記一連の線状の損傷形状部を生成する間、前記ワーク(2)は、前記線状の損傷形状部の場所の前記線に沿った早期の断裂を防ぐように窒素雰囲気にさらされる、請求項1〜4のいずれか1項に記載の方法。
- ワークを分離及び分割する方法であって、準備ステップとして、請求項1〜5のいずれか1項に記載されている一連の線状の損傷形状部を生成する方法を実行することを含む、方法。
- 前記ワーク(2)の分離及び分割を促進するように、前記損傷形状部(14)を、或る量のヒドロキシル(OH)イオンを含むガスにさらすことを含む、請求項6に記載の方法。
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261726065P | 2012-11-14 | 2012-11-14 | |
| DE102012110971.0 | 2012-11-14 | ||
| DE102012110971.0A DE102012110971B4 (de) | 2012-11-14 | 2012-11-14 | Verfahren zur Herstellung von linienförmig aufgereihten Schädigungsstellen in einem transparenten Werkstück sowie Verfahren und Vorrichtung zum Trennen eines Werkstücks |
| US61/726,065 | 2012-11-14 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015542225A Division JP6139693B2 (ja) | 2012-11-14 | 2013-11-08 | 透明ワークを分離する方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2017122046A JP2017122046A (ja) | 2017-07-13 |
| JP6321843B2 true JP6321843B2 (ja) | 2018-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2015542225A Active JP6139693B2 (ja) | 2012-11-14 | 2013-11-08 | 透明ワークを分離する方法 |
| JP2017034823A Active JP6321843B2 (ja) | 2012-11-14 | 2017-02-27 | 透明ワークを分離する方法 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2015542225A Active JP6139693B2 (ja) | 2012-11-14 | 2013-11-08 | 透明ワークを分離する方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US10626039B2 (ja) |
| EP (1) | EP2931467B1 (ja) |
| JP (2) | JP6139693B2 (ja) |
| KR (1) | KR101778418B1 (ja) |
| CN (1) | CN104768698B (ja) |
| DE (1) | DE102012110971B4 (ja) |
| WO (1) | WO2014075995A2 (ja) |
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| DE102012110971B4 (de) * | 2012-11-14 | 2025-03-20 | Schott Ag | Verfahren zur Herstellung von linienförmig aufgereihten Schädigungsstellen in einem transparenten Werkstück sowie Verfahren und Vorrichtung zum Trennen eines Werkstücks |
| WO2014079478A1 (en) | 2012-11-20 | 2014-05-30 | Light In Light Srl | High speed laser processing of transparent materials |
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2013
- 2013-11-08 KR KR1020157015778A patent/KR101778418B1/ko active Active
- 2013-11-08 WO PCT/EP2013/073329 patent/WO2014075995A2/de not_active Ceased
- 2013-11-08 CN CN201380058362.XA patent/CN104768698B/zh active Active
- 2013-11-08 JP JP2015542225A patent/JP6139693B2/ja active Active
- 2013-11-08 EP EP13792624.2A patent/EP2931467B1/de active Active
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- 2015-05-14 US US14/711,881 patent/US10626039B2/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104768698A (zh) | 2015-07-08 |
| JP2015536896A (ja) | 2015-12-24 |
| JP2017122046A (ja) | 2017-07-13 |
| US20200115269A1 (en) | 2020-04-16 |
| WO2014075995A2 (de) | 2014-05-22 |
| JP6139693B2 (ja) | 2017-05-31 |
| EP2931467B1 (de) | 2017-06-14 |
| EP2931467A2 (de) | 2015-10-21 |
| CN104768698B (zh) | 2017-04-26 |
| KR20150082638A (ko) | 2015-07-15 |
| WO2014075995A3 (de) | 2014-07-24 |
| KR101778418B1 (ko) | 2017-09-13 |
| DE102012110971B4 (de) | 2025-03-20 |
| US20160031745A1 (en) | 2016-02-04 |
| US10626039B2 (en) | 2020-04-21 |
| DE102012110971A1 (de) | 2014-05-15 |
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