JP6496248B2 - フラット基板のレーザベースの機械加工方法および装置 - Google Patents
フラット基板のレーザベースの機械加工方法および装置 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
- C03B33/09—Severing cooled glass by thermal shock
- C03B33/091—Severing cooled glass by thermal shock using at least one focussed radiation beam, e.g. laser beam
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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
- B23K26/0006—Working by laser beam, e.g. welding, cutting or boring taking account of the properties of the material involved
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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
- B23K26/0604—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams
- B23K26/0613—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams having a common axis
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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 1ns 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
- B23K26/02—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
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
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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
- B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
- B23K26/0676—Dividing the beam into multiple beams, e.g. multifocusing into dependently operating sub-beams, e.g. an array of spots with fixed spatial relationship or for performing simultaneously identical operations
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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
- B23K26/073—Shaping the laser spot
- B23K26/0738—Shaping the laser spot into a linear shape
-
- 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
- B23K26/50—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
-
- 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
- B23K26/55—Working by transmitting the laser beam through or within the workpiece for creating voids inside the workpiece, e.g. for forming flow passages or flow patterns
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
- Y10T428/24471—Crackled, crazed or slit
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- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
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Description
相互作用の種類は、フルエンス(cm2当たりのジュールでのエネルギー密度)とレーザパルス持続時間とによって、1)好適には材料の表面または内部で溶融が起こらないように、および2)好適には表面上で粒子形成を伴うアブレーションが起こらないように、選択された焦線直径に対して確立され得る。実質的に透明な材料において、いくつかの種類の誘起吸収が知られている。すなわち、
a)低バンドギャップの半導体および絶縁体では、例えば(材料内の汚染物質の跡に起因する、またはレーザ機械加工前の温度で既に熱的に刺激された電荷担体に起因する)低い残存吸収によって、最初のわずかなレーザパルス持続時間内での急速な加熱がさらなる電荷担体の熱刺激につながり、これがさらにより高い吸収につながって、結果として焦線でのレーザ吸収の雪崩的増加につながる。
1a、1b 表面
2a レーザビーム
2b レーザビーム焦線
2c 延在セグメント
3 レーザ
6 光学配置
7、11 レンズ
8 隔壁
9、10 アキシコン
12 コリメートレンズ
Claims (19)
- シート状の基板(1)を複数の部分に分離するための、レーザベースの機械加工の方法であって、
前記基板(1)を機械加工するためのレーザ(3)のレーザビーム(2a、2b)が該基板へと向けられ、
光学配置(6)が前記レーザ(3)の光線路内に位置付けられており、かつ、前記レーザビームの方向に沿って見て延在するレーザビーム焦線(2b)が、前記光学配置(6)のビーム出力側で、該光学配置へと向けられた前記レーザビーム(2a)から形成され、さらに、
誘起吸収が前記レーザビームの方向に見て前記レーザビーム焦線(2b)の延在部分(2c)に沿って前記基板(1)の材料内に生じるように、前記基板(1)が前記レーザビーム焦線(2b)に対して位置付けられており、誘起された亀裂形成が前記延在部分(2c)に沿って前記基板(1)の材料内で起こるという効果を有し、
前記レーザ(3)の波長λが、前記基板(1)の前記材料が該波長に対して透明または実質的に透明であるように選択され、該実質的に透明であるとは、前記基板(1)の前記材料において前記レーザビームの方向に沿って起こる前記レーザビームの強度の減少が、浸透深さ1ミリメートル当たり10%以下であり、
前記レーザビーム焦線(2b)の平均直径δ、すなわちスポット径が0.5μmから5μmの間であり、
前記レーザ(3)のビーム出力側で直接測定された平均レーザパワーが、10ワットから100ワットの間である、ことを特徴とする方法。 - 前記材料内すなわち前記基板(1)の内部の、前記誘起吸収の前記延在部分(2c)が、2つの対向する基板表面(1a、1b)のうちの少なくとも一方に至るまで延在するように、前記基板(1)が前記レーザビーム焦線(2b)に対して位置付けられることを特徴とする請求項1記載の方法。
- 前記材料内すなわち前記基板(1)の内部の、前記誘起吸収の前記延在部分(2c)が、前記2つの対向する基板表面の一方(1a)から該2つの対向する基板表面の他方(1b)に至るまで、すなわち前記基板(1)の全層厚さdに亘って延在するように、前記基板(1)が前記レーザビーム焦線(2b)に対して位置付けられる、あるいは、
前記材料内すなわち前記基板(1)の内部の、前記誘起吸収の前記延在部分(2c)が、前記2つの対向する基板表面の前記一方(1a)から前記基板(1)内へと延在するが該2つの対向する基板表面の前記他方(1b)に至るまでではなく、すなわち前記基板(1)の前記全層厚さdに亘ってではなく、該全層厚さdの80%から98%に亘り延在するように、前記基板(1)が前記レーザビーム焦線(2b)に対して位置付けられることを特徴とする請求項2記載の方法。 - 前記亀裂形成が前記基板(1)の前記材料の著しいアブレーションなくかつ著しい溶融なく前記基板(1)の微細構造において起こるように、前記誘起吸収が生じることを特徴とする請求項1から3いずれか1項記載の方法。
- 前記レーザビーム焦線(2b)の範囲l、および/または前記材料内すなわち前記基板(1)の内部の前記誘起吸収の前記延在部分(2c)の範囲は、いずれも前記レーザビームの縦方向に見て0.1mmから100mmの間であり、および/または、
2つの対向する基板表面(1a、1b)に垂直に測定される前記基板(1)の層厚さdは、30μmから3000μmの間であり、および/または、
前記レーザビーム焦線(2b)の前記範囲lと前記基板(1)の前記層厚さdとの比率V1=l/dは、10から0.5の間であり、および/または、
前記レーザビームの縦方向に見て、前記材料内すなわち前記基板(1)の内部の前記誘起吸収の前記誘起吸収の前記延在部分(2c)の範囲Lと、前記レーザビームの縦方向を横切る方向に見て、前記材料内すなわち前記基板(1)の内部の前記誘起吸収の前記延在部分(2c)の平均範囲Dとの比率V2=L/Dは、5から5000の間であることを特徴とする請求項1から4いずれか1項記載の方法。 - 前記レーザビーム焦線(2b)のスポット径の平均直径δが、1μmから3μmの間であり、および/または、
前記レーザ(3)のパルス持続時間τが、前記基板(1)の前記材料との相互作用の時間内で、前記材料の熱拡散がごく僅かであるように、好適には熱拡散が起こらないように選択され、このためτ、δ、および前記基板(1)の前記材料の熱拡散定数αがτ<<δ2/αに従って設定され、および/または、
前記レーザ(3)のパルス繰返し率が、10kHzから1000kHzの間であり、および/または、
前記レーザ(3)がシングルパルスレーザとして、あるいはバーストパルスレーザとして操作され、および/または、
前記レーザ(3)のビーム出力側で直接測定された平均レーザパワーが、30ワットから50ワットの間であることを特徴とする請求項1から5いずれか1項記載の方法。 - 前記レーザは、前記基板(1)が可視波長範囲で透明である特にガラスまたは結晶である場合には、波長λが1064nmのNd:YAGレーザ、または波長λが1030nmのY:YAGレーザであり、あるいは赤外波長範囲で透明である半導体基板(1)である場合には、波長λが1.5μmから1.8μmの間のEr:YAGレーザであることを特徴とする請求項1から6いずれか1項記載の方法。
- 前記レーザビーム(2a、2b)が前記基板(1)へと垂直に向けられ、従って、前記レーザビーム焦線(2b)の前記延在部分(2c)に沿った前記誘起吸収が前記基板の平面に垂直に起こるように前記基板(1)が前記レーザビーム焦線(2b)に対して位置付けられ、または、
前記レーザビーム(2a、2b)が前記基板(1)へと、前記基板(1)の前記平面の法線に対して0°を超える角度βで向けられ、従って、前記レーザビーム焦線(2b)の前記延在部分(2c)に沿った前記誘起吸収が前記基板の前記平面に対して90°−βの角度で起こるように前記基板(1)が前記レーザビーム焦線(2b)に対して位置付けられ、このとき好適にはβ≦45°であることを特徴とする請求項1から7いずれか1項記載の方法。 - 前記複数の部分を得るために、前記基板(1)を分断する線(5)に沿って、前記レーザビーム(2a、2b)を前記基板(1)の表面(1a、4)に対して動かして、前記基板(1)内部の前記誘起吸収の前記延在部分(2c)を前記線(5)に沿って複数(2c−1、2c−2、・・・)生じさせ、
ここで、直接隣接する前記誘起吸収の前記延在部分(2c)の、すなわちすぐ次に生成された前記延在部分との、平均間隔aと、前記レーザビーム焦線(2b)すなわちスポット径の、平均直径δとの比率V3=a/δは、1.0μmから2.0μmの間であることを特徴とする請求項1から8いずれか1項記載の方法。 - 前記基板(1)内部で前記誘起吸収の前記延在部分(2c)を複数(2c−1、2c−2、・・・)生成している間および/または生成した後に、前記基板を前記複数の部分に分離するために前記誘起吸収の前記延在部分(2c)の直接隣接しているもの(2c−1、2c−2)の間に夫々亀裂形成をもたらすよう、前記基板(1)に機械的な力を与え、および/または前記基板(1)に、前記基板を不規則に加熱し再び冷却して、熱応力を導入し、
前記熱応力は、CO2レーザで前記基板(1)を前記線(5)に沿って照射することによって導入されることを特徴とする請求項9記載の方法。 - シート状基板(1)を複数の部分に分離するための、レーザベースの機械加工のための装置であって、
該装置で、前記基板(1)を機械加工するためのレーザ(3)のレーザビーム(2a、2b)を、該基板へと向けることができ、
前記レーザ(3)の光線路内に位置付けられた光学配置(6)であって、前記レーザビームの方向に沿って見て延在するレーザビーム焦線(2b)を、該光学配置(6)のビーム出力側で、該光学配置へと向けられる前記レーザビーム(2a)から形成することができる、光学装置(6)と、
誘起吸収が前記レーザビームの方向に見て前記レーザビーム焦線(2b)の延在部分(2c)に沿って前記基板(1)の材料内で起こり、誘起された亀裂形成が前記延在部分(2c)に沿って前記基板の前記材料内にもたらされるという効果を有するように、前記レーザビーム焦線(2b)に対して位置付けることができる、あるいは位置付けられた、前記基板(1)と、
前記レーザ(3)の波長λが、前記基板(1)の前記材料が該波長に対して透明または実質的に透明であるように選択され、該実質的に透明であるとは、前記基板(1)の前記材料において前記レーザビームの方向に沿って起こる前記レーザビームの強度の減少が、浸透深さ1ミリメートル当たり10%以下であり、
前記レーザビーム焦線(2b)の平均直径δ、すなわち、スポット径が、0.5μmから5μmの間であり、
前記レーザ(3)のビーム出力側で直接測定された平均レーザパワーが、10ワットから100ワットの間である、
を特徴とする装置。 - 前記光学配置(6)が、球面収差を有する集束光学素子を含み、
前記光学配置(6)の隔壁(8)は、前記レーザビーム(2a)の中心に位置する、前記隔壁に衝突する光線の束(2aZ)を遮断し、その結果該中心の外側に位置する周縁光線(2aR)のみが前記集束光学素子に衝突するという効果を有することを特徴とする請求項11記載の装置。 - 前記光学配置(6)が、前記レーザビームの方向に見て画成された範囲lすなわち画成された長さを有する前記レーザビーム焦線(2b)を形成するように成形された、非球形の自由表面を有する光学素子を含み、
該非球形の自由表面を有する光学素子が、円錐プリズムまたはアキシコン(9)であることを特徴とする請求項11または12記載の装置。 - 前記光学配置(6)が、前記レーザ(3)の前記光線路内に、延在する前記レーザビーム焦線(2b)を形成するように成形された、非球形の自由表面を有する第1の光学素子を最初に備え、さらに該第1の光学素子のビーム出力側の該第1の光学素子から距離z1の位置に、凸レンズ(11)である第2の集束光学素子を備え、
該2つの光学素子は、延在する前記レーザビーム焦線(2b)が前記第2の集束光学素子のビーム出力側の前記第2の集束光学素子から距離z2の位置に生成されるように、前記第1の光学素子が該第1の光学素子に衝突したレーザ放射を前記第2の集束光学素子へと環状に(SR)投影するよう、位置付けおよび位置合わせされていることを特徴とする請求項11から13いずれか1項記載の装置。 - 平凸コリメートレンズ(12)である第3の集束光学素子が、前記レーザ(3)の前記光線路内の前記第1の光学素子と前記第2の集束光学素子との間に位置付けられ、
前記第3の集束光学素子が、前記第1の光学素子によって環状に(SR)形成された前記レーザ放射が、画成された平均リング直径drで前記第3の集束光学素子へと及び、さらに前記第3の集束光学素子が前記レーザ放射を前記平均リング直径drと画成されたリング幅brとで前記第2の集束光学素子の方へ環状に投影するよう、位置付けおよび位置合わせされていることを特徴とする請求項14記載の装置。 - ・サファイア、ガラス、または半導体材料の基板を分離するための、および/または、
・単一層基板、または多層基板を分離するための、および/または、
・コーティング基板を分離するための、および/または、
・単一層基板または多層基板を完全に分断する、または多層基板の全ての層ではないが1以上の層を分断するための、
請求項1から15いずれか1項記載の方法または装置の使用。 - 前記基板が、
石英ガラス、ホウケイ酸ガラス、またはソーダ石灰ガラス、
ナトリウム含有ガラス、
硬化ガラスまたは非硬化ガラス、
結晶Al2O3、またはSiO2・nH2O(オパール)、
Si,GaAs,およびGaNを含有する材料、
ガラス―ガラス複合体、
ガラス―膜複合体、
ガラス―膜―ガラス複合体、
ガラス―空気―ガラス複合体、
金属コーティングのサファイアウエハ、
金属層または金属酸化物層を備えたシリコンウエハ、および、
ITOまたはAlZnOでコーティングされた基板、
の少なくとも1つであることを特徴とする、請求項16に記載の使用。 - 少なくとも1つの表面を有するガラス物品であって、前記少なくとも1つの表面が複数の材料改質を該表面に沿って含み、前記材料改質の夫々の長さが0.1mmから100mmの間の範囲内であり、かつ前記材料改質の夫々の平均直径が0.5μmから5μmの間の範囲内であり、前記材料改質はアブレーションホールではない、ことを特徴とするガラス物品。
- 少なくとも1つの表面を有するガラス物品であって、前記少なくとも1つの表面が複数の材料改質を該表面に沿って含み、前記材料改質の夫々の、直接隣接する前記材料改質の平均距離aと前記材料改質を作り出したレーザビーム焦線の平均直径δとの比率V3=a/δが、およそ2.0に等しく、前記材料改質はアブレーションホールではない、ことを特徴とするガラス物品。
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US20190352215A1 (en) | 2019-11-21 |
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EP2754524B1 (de) | 2015-11-25 |
JP6422033B2 (ja) | 2018-11-14 |
EP2945769B1 (de) | 2017-04-26 |
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CA2898371A1 (en) | 2014-07-24 |
JP2016513024A (ja) | 2016-05-12 |
KR102165804B1 (ko) | 2020-10-15 |
KR20160010396A (ko) | 2016-01-27 |
EP2945769A1 (de) | 2015-11-25 |
US11028003B2 (en) | 2021-06-08 |
KR20160010397A (ko) | 2016-01-27 |
WO2014111794A1 (en) | 2014-07-24 |
US20140199519A1 (en) | 2014-07-17 |
CN106170365A (zh) | 2016-11-30 |
TWI639479B (zh) | 2018-11-01 |
JP2016509540A (ja) | 2016-03-31 |
JP2019034343A (ja) | 2019-03-07 |
TW201446379A (zh) | 2014-12-16 |
CN105209218B (zh) | 2018-07-06 |
LT2945769T (lt) | 2017-09-25 |
CN105209218A (zh) | 2015-12-30 |
LT2945770T (lt) | 2019-04-25 |
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