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Paul J Steffas

from Santa Clara, CA
Age ~68
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Also known as:
Paul James Steffas, Paul H Steffas, Paul S Images
Phone and address:
4939 Avenida De Lago, Santa Clara, CA 95054
(408) 896-0840
Related to:
Justin Paul Steffas, 39D SteffasD Steffas, 37Daniel R Steffas, 36Char Steffas, 67
Connected to:
Chris N Steffas, 61Steve G Steffas, 64Janet G Steffe, 74Jason A Steffe, 54Justine Steffe, 43Andrea M Steffee, 39Dana S Steffee, 67Lisa J Steffee, 61Matthew D Steffee, 38William J Steffee, 77

Paul Steffas Phones & Addresses

  • 4939 Avenida De Lago, Santa Clara, CA 95054 (408) 896-0840
  • 2727 Augustine Dr, Santa Clara, CA 95054

Emails

p***[email protected]

Resumes

Resumes

Paul Steffas Photo 1

Senior Manager, Electrical And Controls At Applied Materials

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Location:
Santa Clara, CA
Industry:
Renewables & Environment
Work:
Applied Materials
Senior Manager, Electrical and Controls at Applied Materials
Solar Universe Jan 2012 - Jan 2014
Electrical Engineer
Greenvolts Jun 2010 - Aug 2012
Consulting Engineer
Daedalus Solar Systems Jun 2009 - Sep 2011
Owner
Solyndra Jan 2006 - Jan 2008
Manager Electrical Systems
Education:
Ohio Institute of Technology 1976 - 1979
Skills:
Inventor
Solar
Electrical Engineering
Metrology
Photovoltaics
Electrical
Solidworks
Automation
Troubleshooting
Systems Engineering
Process Control
Engineering
Solar Energy
Electricians
Manufacturing
R&D
Semiconductors
Engineering Management
Electronics
Design of Experiments
Renewable Energy
Control Systems Design
Spc
Sensors
Failure Analysis
Robotics
Materials
Manufacturing Engineering
Paul Steffas Photo 2

Paul Steffas

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Business Records

Name / Title
Company / Classification
Phones & Addresses
Paul J. Steffas
President
DAEDALUS SOLAR SYSTEMS, INC
Business Services · Ret Lumber/Building Materials
4939 Avenida De Lago, Santa Clara, CA 95054

Publications

Us Patents

Lamphead For A Rapid Thermal Processing Chamber

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US Patent:
20030029859, Feb 13, 2003
Filed:
Aug 8, 2001
Appl. No.:
09/925208
Inventors:
Peter Knoot - San Carlos CA, US
Paul Steffas - Santa Clara CA, US
Assignee:
Applied Materials, Inc.
International Classification:
H05B001/02
F27D011/00
US Classification:
219/483000, 219/486000, 219/501000, 118/725000, 219/390000
Abstract:
A semiconductor processing system and method. The system includes an assembly of radiant energy sources and a programmable switch array configured to selectively deliver power to each radiant energy source based on a plurality of control signals. The method includes measuring the temperature at a plurality of regions on a substrate and controlling a plurality of radiant energy sources to correct any non-radial temperature discontinuities.

Power Distribution Printed Circuit Board For A Semiconductor Processing System

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US Patent:
6350964, Feb 26, 2002
Filed:
Nov 9, 2000
Appl. No.:
09/710518
Inventors:
Ryan C. Boas - Santa Clara CA
Paul J. Steffas - Santa Clara CA
Assignee:
Applied Materials, Inc. - Santa Clara CA
International Classification:
F27B 514
US Classification:
219390, 219405, 219411, 118724, 118725, 392416
Abstract:
A semiconductor processing system including a printed circuit board structure for delivering power to an assembly of radiant energy sources. The printed circuit board structure, in one configuration, forms an evacuable housing for the assembly of radiant energy sources.

Additive Manufacturing With Dithering Scan Path

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US Patent:
20190143595, May 16, 2019
Filed:
Nov 13, 2018
Appl. No.:
16/189740
Inventors:
- Santa Clara CA, US
Paul J. Steffas - Santa Clara CA, US
International Classification:
B29C 64/268
B22F 3/105
B29C 64/277
B22F 3/00
B22F 3/18
Abstract:
An additive manufacturing apparatus includes a platform, a dispenser configured to deliver a plurality of successive layers of feed material on a platform, a light source configured to generate a light beam, an auxiliary polygon mirror scanner configured to receive the light beam from the light source and reflect the light beam, and a primary mirror scanner to receive the light beam reflected by the auxiliary polygon mirror scanner and direct the light beam to impinge on an exposed layer of feed material.

Temperature Control For Additive Manufacturing

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US Patent:
20190047226, Feb 14, 2019
Filed:
Aug 11, 2017
Appl. No.:
15/675457
Inventors:
David Masayuki Ishikawa - Mountain View CA, US
Todd J. Egan - Fremont CA, US
Paul J. Steffas - Santa Clara CA, US
International Classification:
B29C 64/393
B29C 64/153
B29C 64/209
B33Y 30/00
B33Y 10/00
B33Y 50/02
Abstract:
An additive manufacturing apparatus includes a platform, a dispenser to dispense successive layers of feed material on the platform, a heat source above the platform, an energy source to emit a beam of energy to impinge a second region of the topmost layer, a sensor system to measure temperatures of the topmost layer of feed material and to measure a dimension of a melt pool in the second region, and a controller. The heat source is configured to deliver energy to a first region of a topmost layer of the successive layers of feed material to pre-heat and/or heat-treat the first region. The controller is configured to operate the heat source to heat the topmost layer of feed material based on the measured temperatures, and operate the energy source to fuse feed material in the topmost layer based on the measured dimension.

Additive Manufacturing With Multiple Polygon Mirror Scanners

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US Patent:
20180369914, Dec 27, 2018
Filed:
Apr 13, 2018
Appl. No.:
15/953347
Inventors:
- Santa Clara CA, US
Paul J. Steffas - Santa Clara CA, US
Nag B. Patibandla - Pleasanton CA, US
International Classification:
B22F 3/105
B22F 3/00
B33Y 10/00
B33Y 30/00
B33Y 40/00
G02B 26/10
G02B 26/12
Abstract:
An additive manufacturing system includes a platform, a dispenser to dispense a plurality of layers of feed material on a top surface of the platform, a light source to generate three light beams, a first polygon mirror scanner, a galvo mirror scanner, and a second polygon mirror scanner configured to direct the first, second and third light beams, respectively, to impinge the layer of the feed material on the platform, and a controller. The controller is configured to cause the light source and first and second polygon mirror scanners to apply the first light beam to a region of the layer of feed material, and to cause the light source and galvo mirror scanner to apply the second light beam to at least a portion of the region of the layer of feed material.

Additive Manufacturing With Cell Processing Recipes

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US Patent:
20180369915, Dec 27, 2018
Filed:
May 29, 2018
Appl. No.:
15/992094
Inventors:
David Masayuki Ishikawa - Mountain View CA, US
Paul J. Steffas - Santa Clara CA, US
Ajey M. Joshi - San Jose CA, US
International Classification:
B22F 3/105
B33Y 10/00
B33Y 50/02
B22F 3/00
Abstract:
A method of additive manufacturing includes storing a plurality of predetermined cell processing recipes, dispensing a layer of a plurality of successive layers of feed material on a platform, receiving data describing an area of the layer of the feed material to fuse, determining a combination of a plurality of non-overlapping cells that substantially cover the area, and sequentially processing the plurality of cells. Each cell processing recipe includes scan path data indicating a path for an energy beam to follow, and different cell processing recipes having different paths for the energy beam. Each cell of the plurality of cells gets an associated cell processing recipe selected from the plurality of predetermined cell processing recipes. Each cell is processed by causing an energy beam to follow the first path for the cell processing recipe associated with the cell.

Additive Manufacturing With Polygon And Galvo Mirror Scanners

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US Patent:
20180369960, Dec 27, 2018
Filed:
Apr 13, 2018
Appl. No.:
15/953329
Inventors:
David Masayuki Ishikawa - Mountain View CA, US
Paul J. Steffas - Santa Clara CA, US
Nag B. Patibandla - Pleasanton CA, US
International Classification:
B23K 26/342
B33Y 30/00
B33Y 10/00
B33Y 40/00
B23K 26/06
B23K 26/067
B23K 26/082
Abstract:
An additive manufacturing system includes a platform, a dispenser to dispense a plurality of layers of feed material on a top surface of the platform, a light source to generate a first light beam and a second light beam, a polygon mirror scanner, a galvo mirror scanner positioned adjacent to the polygon mirror scanner, and a controller. The controller is coupled to the light source, the polygon mirror scanner and the galvo mirror scanner, and the controller is configured to cause the light source and polygon mirror scanner to apply the first light beam to a region of the layer of feed material, and to cause the light source and galvo mirror scanner to apply the second light beam to at least a portion of the region of the layer of feed material.

Treatment Of Solidified Layer

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US Patent:
20180369961, Dec 27, 2018
Filed:
May 25, 2018
Appl. No.:
15/990408
Inventors:
- Santa Clara CA, US
Paul J. Steffas - Santa Clara CA, US
Ajey M. Joshi - San Jose CA, US
International Classification:
B23K 26/342
B33Y 10/00
B33Y 40/00
B33Y 30/00
B23K 26/03
B23K 26/06
B23K 26/082
B23K 26/14
B23K 26/70
Abstract:
An additive manufacturing apparatus and methods relating to forming multiple layers on an object on a support including dispensing a layer of feed material over the support, fusing a portion of the layer of feed material to form a fused portion in the layer, determining to rework a particular region in the fused portion, and reworking the particular region. Reworking the particular region includes establishing a gas flow directed towards the particular region and producing a melt pool having a keyhole within the particular region.
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Paul J Steffas from Santa Clara, CA, age ~68 Get Report