DWFritz Automation since Mar 2013
Technical Director, Systems Engineering
DWFritz Automation - Portland, OR since Dec 2011
Senior Mechanical Engineer
Twin Creeks Technologies, Inc Oct 2008 - Oct 2011
Member of Technical Staff
Applied Materials - Santa Clara, CA Apr 2003 - Oct 2008
Senior Project Engineering Manager
Boxer Cross - Menlo Park, CA Jan 1997 - Apr 2003
Vice President of Engineering
Education:
University of California, Berkeley 1987 - 1989
Master of Science, Mechanical Engineering
Massachusetts Institute of Technology 1983 - 1987
Bachelor of Science, Mechanical Engineering
Skills:
Engineering Management Product Development Design For Manufacturing Mechanism Design Mechanical Engineering Systems Engineering Failure Analysis Project Engineering Electronic System Design Electronics Semiconductors Product Engineering Solidworks System Level Design Cross Functional Team Leadership Engineering
Steven M. Zuniga - Soquel CA, US Robert D. Tolles - San Jose CA, US Derek G. Aqui - Portland OR, US Andrew J. Nagengast - Sunnyvale CA, US Anthony J. Senn - Nampa ID, US Keenan Leon Guerrero - Boise ID, US
Assignee:
Twin Creeks Technologies, Inc. - San Jose CA
International Classification:
B32B 37/00
US Classification:
156382, 1565831
Abstract:
A bonding apparatus and method holds first and second bodies peripherally, one above the other, on respective shelves. A lower heat-transfer body is configured to lift the first body from below and press the first and second bodies against an upper heat-transfer body to enable bonding between the first and second bodies.
Laser System For Processing Solar Wafers In A Carrier
Derek Aqui - Portland OR, US Steven M. Zuniga - Soquel CA, US Venkateswaran Subbaraman - San Jose CA, US Kirk Liebscher - San Jose CA, US John Alexander - San Jose CA, US Zhenhua Zhang - Newark CA, US Virendra V. S. Rana - Los Gatos CA, US
Assignee:
Applied Materials, Inc. - Santa Clara CA
International Classification:
H01L 21/00
US Classification:
438 55, 438535, 438662, 257618
Abstract:
An apparatus and method for processing the solar cell substrates is provided. In one embodiment, a laser firing chamber for processing solar cell substrates placed in a carrier, comprising a laser module located at a side of the carrier, the laser module being adapted to generate and direct multiple laser beams over an entire surface of a plurality of solar cell substrates, and a transport adapted to convey the carrier through an outputting region of the laser beams.
Advanced Platform For Processing Crystalline Silicon Solar Cells
Keith Brian Porthouse - Sunnyvale CA, US Peter G. Borden - San Mateo CA, US Tristan R. Holtam - Saratoga CA, US Lisong Zhou - Sunnyvale CA, US Ian Scott Latchford - Palo Alto CA, US Derek Aqui - Portland OR, US Vinay K. Shah - San Mateo CA, US
Assignee:
Applied Materials, Inc. - Santa Clara CA
International Classification:
H01L 21/00 H01L 21/677
US Classification:
438 19, 414217
Abstract:
The present invention generally provides a batch substrate processing system, or cluster tool, for in-situ processing of a film stack used to form regions of a solar cell device. In one configuration, the film stack formed on each of the substrates in the batch contains one or more silicon-containing layers and one or more metal layers that are deposited and further processed within the various chambers contained in the substrate processing system. In one embodiment, a batch of solar cell substrates is simultaneously transferred in a vacuum or inert environment to prevent contamination from affecting the solar cell formation process.
Two-Chamber System And Method For Serial Bonding And Exfoliation Of Multiple Workpieces
Steven M. Zuniga - Soquel CA, US Derek G. Aqui - Portland OR, US Andrew J. Nagengast - Sunnyvale CA, US Kirk G. Liebscher - San Jose CA, US John M. Alexander - San Jose CA, US Keenan Leon Guerrero - Boise ID, US
Assignee:
Twin Creeks Technology, Inc. - San Jose CA
International Classification:
H01L 21/30 H01L 21/46
US Classification:
438455, 438458
Abstract:
A system for treating distinct batches of workpieces to serial procedures comprises first and second multi-site structures. In each multi-site structure the sites are rotatable for alignment in turn with loading and unloading stations together constituting treatment or process stations. Workpieces of a batch are loaded onto all of the treatment sites and then simultaneously and identically treated by operation of treatment stations with which the process sites are aligned. After treatment in the first structure, workpieces of a batch are transferred from the unloading stations of the first structure to the loading stations of the second structure for further processing.
Apparatus And Method For Simultaneous Treatment Of Multiple Workpieces
Steven M. Zuniga - Soquel CA, US Derek G. Aqui - Portland OR, US Andrew J. Nagengast - Sunnyvale CA, US Keenan Leon Guerrero - Boise ID, US Harish K. Bolla - Sunnyvale CA, US Aditya Agarwal - Sunnyvale CA, US
Assignee:
GTAT Corporation - Nashua NH
International Classification:
B23Q 3/00
US Classification:
269289R, 269290, 269292
Abstract:
A system for simultaneously treating multiple workpieces is configured with sites, configured to hold respective workpieces, affixed on a rotatable base. Each site has a shelf accommodating an interior space and may be positioned by base rotation in alignment with a station of fixed location. Each station is equipped with an active component. The active components are movable simultaneously within respective stations into the respective interior spaces of respective aligned sites.
Steven M. Zuniga - Soquel CA, US Robert D. Tolles - San Jose CA, US Derek G. Aqui - Portland OR, US Andrew J. Nagengast - Sunnyvale CA, US Anthony J. Senn - Nampa ID, US Keenan Leon Guerrero - Boise ID, US
Assignee:
GTAT Corporation - Nashua NH
International Classification:
B32B 37/00
US Classification:
156228, 156285
Abstract:
A bonding apparatus and method holds first and second bodies peripherally, one above the other, on respective shelves. A lower heat-transfer body is configured to lift the first body from below and press the first and second bodies against an upper heat-transfer body to enable bonding between the first and second bodies.
Apparatus And Method For Simultaneous Treatment Of Multiple Workpieces
Steven M. Zuniga - Soquel CA, US Derek G. Aqui - Portland OR, US Andrew J. Nagengast - Sunnyvale CA, US Keenan Leon Guerrero - Boise ID, US Harish K. Bolla - Sunnyvale CA, US Aditya Agarwal - Sunnyvale CA, US
Assignee:
Twin Creeks Technologies, Inc. - San Jose CA
International Classification:
H01L 21/30
US Classification:
438458, 257E21211
Abstract:
A system for simultaneously treating multiple workpieces is configured with treatment sites, configured to hold respective workpieces, fixed on a rotatable base. Treatment stations are equipped with respective active components operable simultaneously to treat respective workpieces identically on respective aligned treatment sites. For loading and unloading the treatment sites are rotated through distinct loading and unloading stations of the treatment stations which allow loading of a second batch while a first batch is being unloaded.
Peter G. Borden - San Mateo CA Derek G. Aqui - San Jose CA
Assignee:
High Yield Technology, Inc. - Sunnyvale CA
International Classification:
G01N 1502
US Classification:
356364
Abstract:
A structure and a method provide a quasi bright field particle sensor, using a laser beam of predetermined polarization. A phase shift caused by a particle passing through a laser beam is utilized to detect the presence of a particle. In one embodiment, the laser beam is split into two components of laser beams of orthogonal polarization separated by a predetermined distance, so as to allow detection of both spherical and non-spherical particles. In another embodiment, where only non-spherical particles are detected, a single laser beam is used.
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