David L Goldman

US Patent:

8139910, Mar 20, 2012

Filed:

Oct 27, 2008

Appl. No.:

12/259176

Inventors:

Andrew D. Stadler - San Francisco CA, US
David Goldman - Napa CA, US
Mark Farley - Napa CA, US
Michael M. Mielke - Santa Rosa CA, US
Kyungbum Kim - Cotati CA, US
Laurent Vaissié - Sherman Oaks CA, US
Robert G. Waarts - Petaluma CA, US
Michael J. Cumbo - Sunnyvale CA, US

Assignee:

Raydiance, Inc. - Petaluma CA

International Classification:

G02B 6/34
G02B 5/18

US Classification:

385 37, 359572

Abstract:

A method of controlling an ultra-short pulse system is described comprising controlling an optical power within the ultra-short pulse system and control-system controlling a width of an optical pulse. In some embodiments, the method also comprises tuning a compressor by controlling a number of passes of the optical pulse through a Bragg grating to control the width of the optical pulse output from the compressor. In other embodiments, the method may comprise tuning a multi-pass stretcher by controlling a number of passes of the optical pulse through a loop of the multi-pass stretcher to control the width of the optical pulse output from the multi-pass stretcher. A method of controlling an ultra-short pulse system may also comprise accessing a control system from a remotely located command station, communicating status information from the control system to the command station, and communicating information from the command station to the control system.

US Patent:

8178876, May 15, 2012

Filed:

Apr 30, 2004

Appl. No.:

10/595384

Inventors:

Christopher Hess - San Carlos CA, US
David Goldman - Las Vegas NV, US

Assignee:

PDF Solutions, Inc. - San Jose CA

International Classification:

H01L 23/58

US Classification:

257 48, 438 11, 438 14, 438 15, 438 18, 257E21521, 257E21525, 716 51, 716 52, 716 56

Abstract:

A test chip comprises at least one level having an array of regions. Each region is capable of including at least one test structure. At least some of the regions include respective test structures. The level has a plurality of driver lines that provide input signals to the test structures. The level has a plurality of receiver lines that receive output signals from the test structures. The level has a plurality of devices for controlling current flow. Each test structure is connected to at least one of the driver lines with a first one of the devices in between. Each test structure is connected to at least one of the receiver lines with a second one of the devices in between, so that each of the test structures can be individually addressed for testing using the driver lines and receiver lines.

US Patent:

8232687, Jul 31, 2012

Filed:

Apr 26, 2007

Appl. No.:

11/740874

Inventors:

Andrew D. Stadler - San Francisco CA, US
David Goldman - Napa CA, US
Mark Farley - Napa CA, US
Michael Mielke - Orlando FL, US

Assignee:

Raydiance, Inc. - Petaluma CA

International Classification:

F16P 3/20

US Classification:

307328, 372 8, 372 29011, 372 29014, 372 3801, 372 3802, 372 3803, 372 3804, 372 3805, 372 3806, 372 3807, 372 3808, 372 3809

Abstract:

The present invention comprises, in various embodiments, systems and methods for shutting down a laser system in an intelligent and flexible manner. An intelligent laser interlock system includes both hardwired components, and intelligent components configured to execute computing instructions. The hardwired components and the intelligent components are configured to shutdown the laser system to one or more alternative shutdown states in response to one or more interlock signals.

US Patent:

20090213879, Aug 27, 2009

Filed:

Jan 30, 2009

Appl. No.:

12/363646

Inventors:

Andrew D. Stadler - San Francisco CA, US
David Goldman - Napa CA, US
Mark Farley - Napa CA, US
Michael M. Mielke - Santa Rosa CA, US

International Classification:

H01S 3/10

US Classification:

372 20, 372 25

Abstract:

In exemplary embodiments, an ultra short pulse system comprises a laser platform which includes an optical source configured to generate an optical pulse, an optical amplifier configured to amplify the optical pulse, and a compressor configured to temporally compress the amplified optical pulse. The ultra short pulse system further comprises monitor circuitry configured to monitor one or more performance aspects of the laser platform. Additionally, the ultra short pulse system may comprise logic configured to control the one or more performance aspects of the laser platform in response to at least the monitored one or more performance aspects.

US Patent:

20090216494, Aug 27, 2009

Filed:

Jan 30, 2009

Appl. No.:

12/363636

Inventors:

Andrew D. Stadler - San Francisco CA, US
David Goldman - Napa CA, US
Mark Farley - Napa CA, US
Michael M. Mielke - Santa Rosa CA, US

International Classification:

G21C 17/00
H01S 3/00

US Classification:

702183, 372 381

Abstract:

In exemplary embodiments, a network laser system comprises a laser platform including an optical source configured to generate an optical pulse, an optical amplifier configured to amplify the optical pulse, and a compressor configured to temporally compress the amplified optical pulse. The network laser system may also comprise monitor circuitry (e.g., sensors) configured to monitor one or more performance aspects of the laser platform. The network laser system may further comprise logic configured to transmit data to a remote computing device over a network. The network laser system may be configured to perform a diagnostic test and/or maintenance in response to instructions received from the remote computing device.

US Patent:

20120280578, Nov 8, 2012

Filed:

Jul 19, 2012

Appl. No.:

13/553690

Inventors:

Andrew D. Stadler - San Francisco CA, US
David Goldman - Napa CA, US
Mark Farley - Napa CA, US
Michael Mielke - Orlando FL, US

International Classification:

F16P 3/20

US Classification:

307328

Abstract:

Systems and methods are disclosed for shutting down a laser system in an intelligent and flexible manner. An intelligent laser interlock system includes both hardwired components, and intelligent components configured to execute computing instructions. The hardwired components and the intelligent components are configured to shutdown the laser system to one or more alternative shutdown states in response to one or more interlock signals.