Glenn F Simenson

US Patent:

7605343, Oct 20, 2009

Filed:

May 24, 2006

Appl. No.:

11/440697

Inventors:

Weisheng Lei - Portland OR, US
Glenn Simenson - Portland OR, US
Hisashi Matsumoto - Hillsboro OR, US
John Davignon - Hillsboro OR, US

Assignee:

Electro Scientific Industries, Inc. - Portland OR

International Classification:

B23K 26/38

US Classification:

21912171

Abstract:

In some embodiments, laser output including at least one laser pulse having a wavelength shorter than 400 microns and having a pulsewidth shorter than 1,000 picoseconds permits the number of pulses used to clean a bottom surface of a via or the surface of a solder pad to increase process throughput. An oscillator module in cooperation with an amplification module may be used to generate the laser output.

US Patent:

7943862, May 17, 2011

Filed:

Aug 20, 2008

Appl. No.:

12/194886

Inventors:

Glenn Simenson - Portland OR, US
William Antoni - Tigard OR, US
Steven Cohen - Hillsboro OR, US
Jeffery Howerton - Portland OR, US

Assignee:

Electro Scientific Industries, Inc. - Portland OR

International Classification:

H01R 12/04

US Classification:

174262, 174263, 174264, 174266, 29832, 29852, 29876, 438 22, 438106, 438118, 438121, 438125, 257 80, 257 81, 257 82, 257100, 385 2, 385 15

Abstract:

A method and apparatus for filling a via with transparent material is presented, including the steps of providing a panel having a via, occluding the via with transparent material in a workable state so that a portion of the occluding material is internal to the via and a portion of the material is external to said via. The external and internal portions are separated so the transparent filler material, when set, forms a smooth and featureless surface. This causes the filled via to have a substantially even and uniform appearance over a wide range of viewing angles when lit.

US Patent:

7985942, Jul 26, 2011

Filed:

May 17, 2005

Appl. No.:

11/131432

Inventors:

Weisheng Lei - Portland OR, US
Glenn Simenson - Portland OR, US
Jeff Howerton - Portland OR, US
Mark Unrath - Portland OR, US

Assignee:

Electro Scientific Industries, Inc. - Portland OR

International Classification:

B23K 26/00

US Classification:

21912171, 2191217, 21912169

Abstract:

Laser pulse energy adjustments are motivated by an understanding of the effect of laser pulse width variations among different lasers on satisfying a quality metric associated with a laser-processed target. In a preferred embodiment, the adjustments normalize this effect among different lasers drilling vias in a target specimen. The number of pulses delivered to the target specimen to form each via can be modified, based on the pulse energy applied to the via location, to control different via quality metrics.

US Patent:

8116341, Feb 14, 2012

Filed:

May 31, 2007

Appl. No.:

11/756507

Inventors:

Weisheng Lei - Portland OR, US
Yunlong Sun - Beaverton OR, US
Yasu Osako - Lake Oswego OR, US
John Davignon - Hillsboro OR, US
Glenn Simenson - Portland OR, US
Hisashi Matsumoto - Hillsboro OR, US

Assignee:

Electro Scientific Industries, Inc. - Portland OR

International Classification:

H01S 3/109
H01S 3/10
B23K 26/38

US Classification:

372 22, 21912171, 372 23

Abstract:

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.

US Patent:

8379678, Feb 19, 2013

Filed:

Aug 30, 2010

Appl. No.:

12/871619

Inventors:

Haibin Zhang - Portland OR, US
Glenn Simenson - Portland OR, US
Patrick Leonard - Ann Arbor MI, US

Assignee:

Electro Scientific Industries, Inc. - Portland OR

International Classification:

H01S 3/10

US Classification:

372 24, 372 1, 372 25, 372 30, 372 34, 372 35

Abstract:

The invention is a method and apparatus for creating marks on an anodized aluminum specimen with selectable color and optical density. The method includes providing a laser marking system having a laser, laser optics and a controller operatively connected to said laser to control laser pulse parameters. The laser marking system is directed to produce laser pulses having laser pulse parameters associated with the desired color and optical density in the presence of a fluid directed to the surface of the anodized aluminum specimen while marking.

US Patent:

8379679, Feb 19, 2013

Filed:

Feb 11, 2010

Appl. No.:

12/704293

Inventors:

Haibin Zhang - Portland OR, US
Glenn Simenson - Portland OR, US
Robert Hainsey - Portland OR, US
David Barsic - Portland OR, US
Jeffrey Howerton - Portland OR, US
Wayne Crowther - Vancouver WA, US
Patrick Leonard - Ann Arbor MI, US

Assignee:

Electro Scientific Industries, Inc. - Portland OR

International Classification:

H01S 3/10
H01S 3/13

US Classification:

372 25, 372 29014, 372 30

Abstract:

The invention is a method and apparatus for creating a color and optical density selectable visible mark on an anodized aluminum specimen. The method includes providing a laser marking system having a laser, laser optics and a controller operatively connected to said laser to control laser pulse parameters and a controller with stored laser pulse parameters, selecting the stored laser pulse parameters associated with the desired color and optical density, directing the laser marking system to produce laser pulses having laser pulse parameters associated with the desired color and optical density including temporal pulse widths greater than about 1 and less than about 1000 picoseconds to impinge upon said anodized aluminum.

US Patent:

8415586, Apr 9, 2013

Filed:

Oct 16, 2009

Appl. No.:

12/581008

Inventors:

Weisheng Lei - Portland OR, US
Glenn Simenson - Portland OR, US
Hisashi Matsumoto - Hillsboro OR, US
John Davignon - Hillsboro OR, US

Assignee:

Electro Scientific Industries, Inc. - Portland OR

International Classification:

B23K 26/38

US Classification:

21912169

Abstract:

In some embodiments, laser output including at least one laser pulse having a wavelength shorter than 400 microns and having a pulsewidth shorter than 1,000 picoseconds permits the number of pulses used to clean a bottom surface of a via or the surface of a solder pad to increase process throughput. An oscillator module in cooperation with an amplification module may be used to generate the laser output.

US Patent:

20060027544, Feb 9, 2006

Filed:

Aug 4, 2004

Appl. No.:

10/912525

Inventors:

Robert Pailthorp - Portland OR, US
Weisheng Lei - Portland OR, US
Hisashi Matsumoto - Hillsboro OR, US
Glenn Simenson - Portland OR, US
David Watt - Beaverton OR, US
Mark Unrath - Portland OR, US
William Jordens - Beaverton OR, US

Assignee:

Electro Scientific Industries, Inc. - Portland OR

International Classification:

B23K 26/38

US Classification:

219121710

Abstract:

High speed removal of material from a specimen employs a beam positioner for directing a laser beam axis along various circular and spiral laser tool patterns. A preferred method of material removal entails causing relative movement between the axis of the beam and the specimen, directing the beam axis at an entry segment acceleration and along an entry trajectory to an entry position within the specimen at which laser beam pulse emissions are initiated, moving the beam axis at a circular perimeter acceleration within the specimen to remove material along a circular segment of the specimen, and setting the entry segment acceleration to less than twice the circular perimeter acceleration.