Patents by Inventor Yasu Osako
Yasu Osako has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20190001442Abstract: Apparatus and techniques for laser-processing workpieces can be improved, and new functionalities can be provided. Some embodiments discussed relate to processing of workpieces in a manner resulting in enhanced accuracy, throughput, etc. Other embodiments relate to realtime Z-height measurement and, when suitable, compensation for certain Z-height deviations. Still other embodiments relate to modulation of scan patterns, beam characteristics, etc., to facilitate feature formation, avoid undesirable heat accumulation, or otherwise enhance processing throughput. A great number of other embodiments and arrangements are also detailed.Type: ApplicationFiled: September 8, 2016Publication date: January 3, 2019Inventors: Mark Unrath, Chuan Yang, Jan Kleinert, Mark Peeples, Hugh Owens, Gwendolyn Byrne, Haibin Zhang, Justin Redd, Corie Neufeld, James D. Brookhyser, Yasu Osako, Mehmet Alpay, Zhibin Lin, Patrick Riechel, Tim Nuckolls, Hisashi Matsumoto, Chris Ryder
-
Patent number: 10118252Abstract: Systems and methods for laser processing continuously moving sheet material include one or more laser processing heads configured to illuminate the moving sheet material with one or more laser beams. The sheet material may include, for example, an optical film continuously moving from a first roller to a second roller during a laser process. In one embodiment, a vacuum chuck is configured to removably affix a first portion of the moving sheet material thereto. The vacuum chuck controls a velocity of the moving sheet material as the first portion is processed by the one or more laser beams. In one embodiment, a conveyor includes a plurality of vacuum chucks configured to successively affix to different portions of the sheet material during laser processing.Type: GrantFiled: May 8, 2015Date of Patent: November 6, 2018Assignee: Electro Scientific Industries, Inc.Inventors: Yasu Osako, Mark Unrath, Mark Kosmowski
-
Publication number: 20150239064Abstract: Systems and methods for laser processing continuously moving sheet material include one or more laser processing heads configured to illuminate the moving sheet material with one or more laser beams. The sheet material may include, for example, an optical film continuously moving from a first roller to a second roller during a laser process. In one embodiment, a vacuum chuck is configured to removably affix a first portion of the moving sheet material thereto. The vacuum chuck controls a velocity of the moving sheet material as the first portion is processed by the one or more laser beams. In one embodiment, a conveyor includes a plurality of vacuum chucks configured to successively affix to different portions of the sheet material during laser processing.Type: ApplicationFiled: May 8, 2015Publication date: August 27, 2015Applicant: ELECTRO SCIENTIFIC INDUSTRIES, INC.Inventors: Yasu Osako, Mark Unrath, Mark Kosmowski
-
Patent number: 9029731Abstract: Systems and methods for laser processing continuously moving sheet material include one or more laser processing heads configured to illuminate the moving sheet material with one or more laser beams. The sheet material may include, for example, an optical film continuously moving from a first roller to a second roller during a laser process. In one embodiment, a vacuum chuck is configured to removably affix a first portion of the moving sheet material thereto. The vacuum chuck controls a velocity of the moving sheet material as the first portion is processed by the one or more laser beams. In one embodiment, a conveyor includes a plurality of vacuum chucks configured to successively affix to different portions of the sheet material during laser processing.Type: GrantFiled: December 3, 2007Date of Patent: May 12, 2015Assignee: Electro Scientific Industries, Inc.Inventors: Yasu Osako, Mark Unrath, Mark Kosmowski
-
Patent number: 8729427Abstract: A process to cut sheet material using a laser is improved by performing a first plurality of routings using a first toolpath for the laser and performing at least a second routing using a second toolpath for the laser after performing the first plurality of routings using the first toolpath, the second toolpath traverse from a kerf formed by the laser as a result of performing the first plurality of routings. A z-height shift can be simultaneously implemented with the transverse shift. By shifting the toolpath, interference of plasma generated during laser processing is minimized by maximizing the coupling of the laser and the material, resulting in less discoloration and/or burning of the material.Type: GrantFiled: March 27, 2009Date of Patent: May 20, 2014Assignee: Electro Scientific Industries, Inc.Inventor: Yasu Osako
-
Patent number: 8679948Abstract: An improved method for singulation of electronic substrates into dice uses a laser to first form cuts in the substrate and then chamfers the edges of the cuts by altering the laser parameters. The chamfers increase die break strength by reducing the residual damage and removes debris caused by the initial laser cut without requiring additional process steps, additional equipment or consumable supplies.Type: GrantFiled: February 22, 2013Date of Patent: March 25, 2014Assignee: Electro Scientific Industries, IncInventors: Yasu Osako, Daragh Finn
-
Publication number: 20140003067Abstract: A panel includes a plurality of microholes arranged in a pattern and filled with light transmissive polymeric material. The light transmissive polymeric material occludes the microholes and is set, or cured, by exposure to an energy source using at least two discrete exposure periods separated by an idle or rest period. The uniformity of the microholes is thereby improved.Type: ApplicationFiled: August 30, 2013Publication date: January 2, 2014Applicant: Electro Scientific Industries, Inc.Inventor: Yasu Osako
-
Patent number: 8609512Abstract: An improved method for singulation of compound electronic devices is presented. Compound electronic devices are manufactured by combining two or more substrates into an assembly containing multiple devices. Presented are methods for singulation of compound electronic devices using laser processing. The methods presented provide fewer defects such as cracking or chipping of the substrates while minimizing the width of the kerf and maintaining system throughput.Type: GrantFiled: March 27, 2009Date of Patent: December 17, 2013Assignee: Electro Scientific Industries, Inc.Inventors: Peter Pirogovsky, Jeffery A. Albelo, James O'Brien, Yasu Osako
-
Patent number: 8598490Abstract: Tailored laser pulse shapes are used for processing workpieces. Laser dicing of semiconductor device wafers on die-attach film (DAF), for example, may use different tailored laser pulse shapes for scribing device layers down to a semiconductor substrate, dicing the semiconductor substrate, cutting the underlying DAF, and/or post processing of the upper die edges to increase die break strength. Different mono-shape laser pulse trains may be used for respective recipe steps or passes of a laser beam over a scribe line. In another embodiment, scribing a semiconductor device wafer includes only a single pass of a laser beam along a scribe line using a mixed-shape laser pulse train that includes at least two laser pulses that are different than one another. In addition, or in other embodiments, one or more tailored pulse shapes may be selected and provided to the workpiece on-the-fly. The selection may be based on sensor feedback.Type: GrantFiled: March 31, 2011Date of Patent: December 3, 2013Assignee: Electro Scientific Industries, Inc.Inventors: Andrew Hooper, David Barsic, Kelly J. Bruland, Daragh S. Finn, Lynn Sheehan, Xiaoyuan Peng, Yasu Osako, Jim Dumestre, William J. Jordens
-
Publication number: 20130237035Abstract: An improved method for singulation of electronic substrates into dice uses a laser to first form cuts in the substrate and then chamfers the edges of the cuts by altering the laser parameters. The chamfers increase die break strength by reducing the residual damage and removes debris caused by the initial laser cut without requiring additional process steps, additional equipment or consumable supplies.Type: ApplicationFiled: February 22, 2013Publication date: September 12, 2013Applicant: ELECTRO SCIENTIFIC, INDUSTRIES, INC.Inventors: Yasu OSAKO, Daragh FINN
-
Patent number: 8524127Abstract: Methods of manufacturing a panel and resulting panels include a plurality of microholes arranged in a pattern and filled with light transmissive polymeric material. The light transmissive polymeric material occludes the microholes and is set, or cured, by exposure to an energy source using at least two discrete exposure periods separated by an idle or rest period.Type: GrantFiled: March 26, 2010Date of Patent: September 3, 2013Assignee: Electro Scientific Industries, Inc.Inventor: Yasu Osako
-
Patent number: 8383984Abstract: An improved method for singulation of electronic substrates into dice uses a laser to first form cuts in the substrate and then chamfers the edges of the cuts by altering the laser parameters. The chamfers increase die break strength by reducing the residual damage and removes debris caused by the initial laser cut without requiring additional process steps, additional equipment or consumable supplies.Type: GrantFiled: April 2, 2010Date of Patent: February 26, 2013Assignee: Electro Scientific Industries, Inc.Inventors: Yasu Osako, Daragh Finn
-
Publication number: 20120160814Abstract: Systems and methods ablate electrically conductive links using laser pulses with optimized temporal power profiles and/or polarizations. In certain embodiments, the polarization property of a laser beam is set such that coupling between the laser beam and an electrically conductive link reduces the pulse energy required to ablate the electrically conductive link. In one such embodiment, the polarization is selected based on a depth of a target link structure. In another embodiment, the polarization changes as deeper material is removed from a target location. In addition, or in other embodiments, a first portion of a temporal power profile of a laser beam includes a rapid rise time to heat an upper portion of an electrically conductive link so as to form cracks in a passivation layer over upper corners of the electrically conductive link, without forming cracks at lower corners of the electrically conductive link.Type: ApplicationFiled: December 28, 2010Publication date: June 28, 2012Applicant: ELECTRO SCIENTIFIC INDUSTRIES, INC.Inventors: Yasu Osako, Kelly J. Bruland, Andrew Hooper, Jim Dumestre, David Lord
-
Patent number: 8208506Abstract: Systems and methods generate laser pulse trains for material processing. In one embodiment, stable laser pulse trains at high repetition rates are generated from a continuous wave (CW) or quasi-CW laser beams. One or more laser pulses in the laser pulse train may be shaped to control energy delivered to a target material. In another embodiment, multiple laser beams are distributed to multiple processing heads from a single laser pulse, CW laser beam, or quasi-CW laser beam. In one such embodiment, a single optical deflector distributes multiple laser beams among respective processing heads.Type: GrantFiled: October 19, 2010Date of Patent: June 26, 2012Assignee: Electro Scientific Industries, Inc.Inventors: Yasu Osako, Hisashi Matsumoto
-
Patent number: 8116341Abstract: Dual-beam laser outputs, preferably derived from a single laser beam, improve the quality of the sidewalls of vias drilled in a target material, such as printed circuit board, comprising fiber-reinforced resin. Two embodiments each use two laser output components to remove a portion of target material from a target material location of a workpiece and rapidly clean remnants of the target material bonded to a metal layer underlying the target material location at a material removal rate. A first embodiment entails directing for incidence on a portion of the target material at the target material location a processing laser output having first and second components characterized by respective first and second wavelengths. A second embodiment entails directing for incidence on a portion of the target material at the target material location a processing laser output having first and second components characterized by respective first and pulse widths.Type: GrantFiled: May 31, 2007Date of Patent: February 14, 2012Assignee: Electro Scientific Industries, Inc.Inventors: Weisheng Lei, Yunlong Sun, Yasu Osako, John Davignon, Glenn Simenson, Hisashi Matsumoto
-
Publication number: 20110298156Abstract: Tailored laser pulse shapes are used for processing workpieces. Laser dicing of semiconductor device wafers on die-attach film (DAF), for example, may use different tailored laser pulse shapes for scribing device layers down to a semiconductor substrate, dicing the semiconductor substrate, cutting the underlying DAF, and/or post processing of the upper die edges to increase die break strength. Different mono-shape laser pulse trains may be used for respective recipe steps or passes of a laser beam over a scribe line. In another embodiment, scribing a semiconductor device wafer includes only a single pass of a laser beam along a scribe line using a mixed-shape laser pulse train that includes at least two laser pulses that are different than one another. In addition, or in other embodiments, one or more tailored pulse shapes may be selected and provided to the workpiece on-the-fly. The selection may be based on sensor feedback.Type: ApplicationFiled: March 31, 2011Publication date: December 8, 2011Applicant: ELECTRO SCIENTIFIC INDUSTRIES, INC.Inventors: Andrew Hooper, David Barsic, Kelly J. Bruland, Daragh S. Finn, Lynn Sheehan, Xiaoyuan Peng, Yasu Osako, Jim Dumestre, William J. Jordens
-
Publication number: 20110287607Abstract: Laser singulation of electronic devices from semiconductor substrates including wafers is performed using up to 3 lasers from 2 wavelength ranges. Using up to 3 lasers from 2 wavelength ranges permits laser singulation of wafers held by die attach film while avoiding problems caused by single-wavelength dicing. In particular, using up to 3 lasers from 2 wavelength ranges permits efficient dicing of semiconductor wafers while avoiding debris and thermal problems associated with laser processing die attach tape.Type: ApplicationFiled: March 30, 2011Publication date: November 24, 2011Applicant: ELECTRO SCIENTIFIC INDUSTRIES, INC.Inventors: Yasu Osako, Bong Cho, Daragh Finn, Andrew Hooper, James O'Brien
-
Publication number: 20110240616Abstract: An improved method for singulation of electronic substrates into dice uses a laser to first form cuts in the substrate and then chamfers the edges of the cuts by altering the laser parameters. The chamfers increase die break strength by reducing the residual damage and removes debris caused by the initial laser cut without requiring additional process steps, additional equipment or consumable supplies.Type: ApplicationFiled: April 2, 2010Publication date: October 6, 2011Applicant: ELECTRO SCIENTIFIC INDUSTRIES, INC.Inventors: Yasu Osako, Daragh Finn
-
Publication number: 20110236645Abstract: Methods of manufacturing a panel and resulting panels include a plurality of microholes arranged in a pattern and filled with light transmissive polymeric material. The light transmissive polymeric material occludes the microholes and is set, or cured, by exposure to an energy source using at least two discrete exposure periods separated by an idle or rest period.Type: ApplicationFiled: March 26, 2010Publication date: September 29, 2011Applicant: ELECTRO SCIENTIFIC INDUSTRIES, INC.Inventor: Yasu Osako
-
Publication number: 20110085574Abstract: Systems and methods generate laser pulse trains for material processing. In one embodiment, stable laser pulse trains at high repetition rates are generated from a continuous wave (CW) or quasi-CW laser beams. One or more laser pulses in the laser pulse train may be shaped to control energy delivered to a target material. In another embodiment, multiple laser beams are distributed to multiple processing heads from a single laser pulse, CW laser beam, or quasi-CW laser beam. In one such embodiment, a single optical deflector distributes multiple laser beams among respective processing heads.Type: ApplicationFiled: October 19, 2010Publication date: April 14, 2011Applicant: ELECTRO SCIENTIFIC INDUSTRIES, INC.Inventors: Yasu Osako, Hisashi Matsumoto