JP5607138B2 - ガラス基板上のチップスケールパッケージのレーザ個別化のための方法 - Google Patents
ガラス基板上のチップスケールパッケージのレーザ個別化のための方法 Download PDFInfo
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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
- H01L21/70—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
- B23K26/38—Removing material by boring or cutting
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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
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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
- B23K26/362—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
-
- 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
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
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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
- 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
- B23K2103/16—Composite materials, e.g. fibre reinforced
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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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- Engineering & Computer Science (AREA)
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- Optics & Photonics (AREA)
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- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Laser Beam Processing (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Description
て本願に援用される。
Claims (8)
- レーザ加工システムを用いて、複数の複合電子デバイスを個別化するための方法であって、前記複数の複合電子デバイスは、階層的に構成された第1の基板及び第2の基板を含む組立体として製造されており、前記複数の複合電子デバイスは、前記複合電子デバイスの間にストリートが設けられ、前記第1の基板は前記第2の基板に面した第1面を有し、前記第2の基板は前記第1の基板に面した第2面を有し、前記第1の基板は回路を支持し、前記第1の基板は前記ストリートに沿って配置されたスペーサによって前記第2の基板と接続され、前記スペーサは前記第1の基板と前記第2の基板との間の間隔を形成し、前記スペーサは前記回路に到達する汚染を防ぐシールを形成し、前記レーザ加工システムは、焦点スポット、速度、波長、エネルギ、スポットサイズ、スポット形状、パルス幅、パルス波形及びパルス繰返し率を含むパラメータを含むレーザビームを有し、前記レーザビームビームは、前記組立体をマシニングするように動作し、前記第1の基板はアブレーション閾値を有し、前記方法は、
第1の所定のレーザパラメータ値を有する前記レーザビームによって、前記第1の基板に、前記複合電子デバイスの間の前記ストリートの1つに一致するとともに前記スペーサ間に整列されたスルーカットをレーザマシニングするステップであって、前記第1の所定のレーザパラメータ値は前記第1の基板の前記アブレーション閾値の1から10倍の間のパルスエネルギー値を含む、ステップと、
第2の所定のレーザパラメータ値を有する前記レーザビームによって、前記第2の基板に、前記第1の基板内の前記スルーカットに揃えられた前記第2の基板内のスクライブをレーザマシニングするステップであって、前記第2の所定のレーザパラメータ値は前記焦点スポットを前記第2面の上に位置決めする値を含む、ステップと、
前記スクライブに沿って前記第2の基板を機械的に分割することによって、前記複合電子デバイスを個別化するステップであって、前記スペーサによって形成される前記シールは前記複合電子デバイスを分離する間は維持される、ステップと、
を有する方法。 - 前記第1の基板の前記レーザマシニングを実行するために用いられる前記レーザパラメータは、100ピコ秒以下のパルス幅を含む請求項1記載の方法。
- 前記レーザビームの前記焦点スポットは、前記第1の基板の前記上面近傍にフォーカスされ、前記第1の基板内に前記スルーカットの前記レーザマシニングを実行する請求項1記載の方法。
- 前記レーザビームの前記焦点スポットは、前記第1の基板の前記上面から約100μm乃至1000μm上方にフォーカスされ、前記第2の基板内に前記スクライブの前記レーザマシニングを実行する請求項1または3記載の方法。
- 前記第1および第2の所定のパラメータ値は互いに異なる、
請求項1または4記載の方法。 - 前記第1の基板に前記スルーカットをレーザマシニングするステップは、前記第1の基板にカーフエッジを生成し、
前記焦点スポットを前記第2の基板の前記第2面の上に位置決めするステップは、デフォーカスされたレーザビームを提供して前記カーフエッジ上のデブリと脆性材料を溶融させ、これにより亀裂に対する強度を高める、
請求項1または4記載の方法。 - 前記レーザビームを用いて前記第2の基板にスクライブをレーザマシニングするステップは、スクライビング方向において実施され、
前記焦点スポットを前記第2面の上に位置決めするステップは、前記第1の基板に形成される前記スルーカットを前記レーザビームが通過する際に回折と反射を生じさせ、前記スクライビング方向に対して垂直な方向において空間分布のピークを生成し、これにより前記第2の基板における前記スクライブは前記スクライビング方向に対して平行な方向における空間分布よりも狭くなる、
請求項1または4記載の方法。 - 前記第1の基板はウェハであり、前記第2の基板はガラスである、
請求項1または4記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/413,068 US8609512B2 (en) | 2009-03-27 | 2009-03-27 | Method for laser singulation of chip scale packages on glass substrates |
US12/413,068 | 2009-03-27 | ||
PCT/US2010/028888 WO2010111632A2 (en) | 2009-03-27 | 2010-03-26 | Method for laser singulation of chip scale packages on glass substrates |
Publications (2)
Publication Number | Publication Date |
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JP2012522384A JP2012522384A (ja) | 2012-09-20 |
JP5607138B2 true JP5607138B2 (ja) | 2014-10-15 |
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Application Number | Title | Priority Date | Filing Date |
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JP2012502299A Expired - Fee Related JP5607138B2 (ja) | 2009-03-27 | 2010-03-26 | ガラス基板上のチップスケールパッケージのレーザ個別化のための方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8609512B2 (ja) |
JP (1) | JP5607138B2 (ja) |
KR (1) | KR20110138225A (ja) |
CN (1) | CN102405520A (ja) |
TW (1) | TW201043381A (ja) |
WO (1) | WO2010111632A2 (ja) |
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