JP6955932B2 - レーザービームプロファイラユニット及びレーザー加工装置 - Google Patents
レーザービームプロファイラユニット及びレーザー加工装置 Download PDFInfo
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- JP6955932B2 JP6955932B2 JP2017162558A JP2017162558A JP6955932B2 JP 6955932 B2 JP6955932 B2 JP 6955932B2 JP 2017162558 A JP2017162558 A JP 2017162558A JP 2017162558 A JP2017162558 A JP 2017162558A JP 6955932 B2 JP6955932 B2 JP 6955932B2
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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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
- B23K26/705—Beam measuring devices
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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
-
- 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
-
- 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
-
- 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
-
- 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
- B23K26/0652—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising prisms
-
- 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
- B23K26/0665—Shaping the laser beam, e.g. by masks or multi-focusing by beam condensation on the workpiece, e.g. for focusing
-
- 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
-
- 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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/04—Optical or mechanical part supplementary adjustable parts
- G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
- G01J1/0477—Prisms, wedges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/4257—Photometry, e.g. photographic exposure meter using electric radiation detectors applied to monitoring the characteristics of a beam, e.g. laser beam, headlamp beam
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/281—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for attenuating light intensity, e.g. comprising rotatable polarising elements
-
- 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
- B23K2103/56—Inorganic materials other than metals or composite materials being semiconducting
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electromagnetism (AREA)
- Laser Beam Processing (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Lasers (AREA)
- Length Measuring Devices By Optical Means (AREA)
Description
10 チャックテーブル
20 レーザー照射部(レーザー照射ユニット)
21 照射ヘッド
24 発振器(レーザー発振器)
25 全反射ミラー(光学系)
26 集光レンズ
70 プロファイラユニット(レーザービームプロファイラユニット)
71 ユニット本体
71B 受光部
72,76 透過プリズム(第1透過プリズム)
72A,74A,75A,76A 側面(入射面)
72B,74B,75B,76B 側面
73 拡大光学系
74,75 透過プリズム(第2透過プリズム)
77 撮像素子
80 解析部
81 画像処理部
82 データ受信部
100 ウエーハ(被加工物)
200,201,202,203,204,205,206 レーザー光線(レーザービーム)
210 透過光
211 内部反射光
Claims (5)
- レーザー加工装置に搭載されたレーザー発振器から発振されてウエーハに照射されるレーザービームの強度分布を測定するレーザービームプロファイラユニットであって、
該レーザー発振器から発振され、集光レンズで集光された該レーザービームを減衰させる第1透過プリズムと、
該第1透過プリズムで僅かに反射されたレーザービームのスポット径を拡大する拡大光学系と、
該第1透過プリズムで僅かに反射されかつ該拡大光学系にてスポット径が拡大されたレーザービームを更に減衰させる第2透過プリズムと、
該第2透過プリズムで僅かに反射した該レーザービームを受光する撮像素子と、
該撮像素子の受光データからレーザービームのスポットの強度分布を解析する解析部と、を備えるレーザービームプロファイラユニット。 - 該第1透過プリズムと該第2透過プリズムとで一対の透過プリズムを構成し、該一対の透過プリズムの一方はP偏光の減衰率が高く、他方の該透過プリズムはS偏光の減衰率が高いことで、P偏光とS偏光が同様に減衰される請求項1記載のレーザービームプロファイラユニット。
- 該第1透過プリズムと該第2透過プリズムは、直角二等辺三角形を底面とする三角柱状のプリズムであって、該レーザービームは、直角二等辺三角形の直角を成す辺を含む三角柱の側面に入射する請求項1又は2記載のレーザービームプロファイラユニット。
- チャックテーブルに保持された被加工物にレーザービームを照射するレーザービーム照射ユニットと、レーザービーム照射ユニットのレーザービーム照射条件を制御する制御ユニットと、レーザービームのスポットの強度分布を測定する強度分布ユニットと、を備えるレーザー加工装置であって、
該強度分布ユニットは、請求項1乃至3のいずれか一項に記載のレーザービームプロファイラユニットであるレーザー加工装置。 - 該レーザービーム照射ユニットは、レーザービームを発振する発振器と、該レーザービームを集光する集光レンズと、該発振器から該集光レンズへ該レーザービームを案内する光学系と、を備え、
該光学系は、該レーザービームのスポット形状を成形する請求項4記載のレーザー加工装置。
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017162558A JP6955932B2 (ja) | 2017-08-25 | 2017-08-25 | レーザービームプロファイラユニット及びレーザー加工装置 |
| KR1020180094764A KR102480251B1 (ko) | 2017-08-25 | 2018-08-14 | 레이저 빔 프로파일러 유닛 및 레이저 가공 장치 |
| TW107129271A TWI771474B (zh) | 2017-08-25 | 2018-08-22 | 雷射光束剖析器單元以及雷射加工裝置 |
| CN201810965621.1A CN109454324B (zh) | 2017-08-25 | 2018-08-23 | 激光光束分析仪单元和激光加工装置 |
| DE102018214335.8A DE102018214335A1 (de) | 2017-08-25 | 2018-08-24 | Laserstrahlprofiliereinheit und laserbearbeitungsvorrichtung |
| US16/111,413 US10532433B2 (en) | 2017-08-25 | 2018-08-24 | Laser beam profiler unit and laser processing apparatus |
| SG10201807226RA SG10201807226RA (en) | 2017-08-25 | 2018-08-24 | Laser beam profiler unit and laser processing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017162558A JP6955932B2 (ja) | 2017-08-25 | 2017-08-25 | レーザービームプロファイラユニット及びレーザー加工装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2019039830A JP2019039830A (ja) | 2019-03-14 |
| JP6955932B2 true JP6955932B2 (ja) | 2021-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2017162558A Active JP6955932B2 (ja) | 2017-08-25 | 2017-08-25 | レーザービームプロファイラユニット及びレーザー加工装置 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US10532433B2 (ja) |
| JP (1) | JP6955932B2 (ja) |
| KR (1) | KR102480251B1 (ja) |
| CN (1) | CN109454324B (ja) |
| DE (1) | DE102018214335A1 (ja) |
| SG (1) | SG10201807226RA (ja) |
| TW (1) | TWI771474B (ja) |
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| CN105387933B (zh) * | 2015-12-24 | 2019-02-26 | 中国电子科技集团公司第四十一研究所 | 一种宽波段布儒斯特窗口调节装置及方法 |
| CN106938370B (zh) * | 2015-12-30 | 2019-12-24 | 上海微电子装备(集团)股份有限公司 | 一种激光加工系统及方法 |
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| JP2019039830A (ja) | 2019-03-14 |
| US20190061063A1 (en) | 2019-02-28 |
| DE102018214335A1 (de) | 2019-02-28 |
| SG10201807226RA (en) | 2019-03-28 |
| CN109454324A (zh) | 2019-03-12 |
| CN109454324B (zh) | 2021-11-30 |
| US10532433B2 (en) | 2020-01-14 |
| TWI771474B (zh) | 2022-07-21 |
| KR102480251B1 (ko) | 2022-12-21 |
| TW201913049A (zh) | 2019-04-01 |
| KR20190022337A (ko) | 2019-03-06 |
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