Experience

Nanometrics

• Sr mechanical engineer



Velo 3D

• Sr. Mech. Engineer

  • Oct 2016 - Present



Global Equipment Services, Kimbcsall Electroni

• San Jose, California, United States

• Sr. Mechanica' Engineer

  • Oct 2018 - Nov 2022

  Automation of Optical Test Stations Large substrates robot Optical Gantry based on linear motors and air bearings. Automation of Optical Test Stations Large substrates robot Optical Gantry based on linear motors and air bearings.



Velo3D

• Campbell, CA

• Sr. Mechanical Engineer

  • Oct 2016 - Dec 2017



Nanometrics

• United States
• Semiconductor Manufacturing
• 100 - 200 Employee

• Senior Mechanical Engineer

  • Oct 2012 - Jan 2014

  • Conceptual design of a compact, dual End Effector Stage capable of managing 300 mm wafer transfer in 2.5 seconds. Pneumatic vs. Linear Motor Actuation analysis. • Design of a cost effective mockup for Air Flow Management Investigation for new Metrology Enclosure Environment. Prototype frame was built using 80/20 aluminum extrusions in fraction of allocated time and cost. • XYZ Theta Stage Electronics packaging to reduce cost. Result – 19 inch rack mounted Enclosure at 1/3 cost. • Safety Enclosure for Manual Cassette Load option with Barcode Reader for customer 200 mm wafer FOUP system. Enclosure was built and tested 30 days prior to scheduled date and shipped to the customer. • Laser based system for removal of the parasitic bacterial or other humidity caused oxides growth on the wafer geometry. Optical alignment time became just 10 minutes from assumed 3-day process.



KLA-TENCOR/Valley Engineering Group,

• Milpitas, CA

• Sr. Mechanical Engineer

  • May 2012 - Oct 2012

  Participated in Cost Reduction effort in one of the optical modules in Rapid UV Tool. Achievements included the development of: • Removal of Ceramic Alignment Picomotors and replacing them with Manual drives; • Replacing Ceramic Rotary Drives with a Spur Gear/Step Motor system for 1/2λ and 1/4λ Optical plates; • Simplifying Cube Beam Splitter assembly; • Simplifying and minimizing number of parts in assembly. Participated in Cost Reduction effort in one of the optical modules in Rapid UV Tool. Achievements included the development of: • Removal of Ceramic Alignment Picomotors and replacing them with Manual drives; • Replacing Ceramic Rotary Drives with a Spur Gear/Step Motor system for 1/2λ and 1/4λ Optical plates; • Simplifying Cube Beam Splitter assembly; • Simplifying and minimizing number of parts in assembly.



Valley Engineering Group

• Crossing Automation/Valley Engineering Group, Fremont, CA

• Sr. Mechanical Engineer

  • Nov 2011 - Apr 2012

  Responsible for design and development of the Nitrogen Purge System for 300 mm FOUP. Accomplishments included: • Successful design and build of five End Effectors prototypes for 4-FOUP existing Wafer Transfer System; • FOUP Nitrogen Purge System with 180 l/min flow capacity based on pneumatic actuation of Nitrogen injectors. Responsible for design and development of the Nitrogen Purge System for 300 mm FOUP. Accomplishments included: • Successful design and build of five End Effectors prototypes for 4-FOUP existing Wafer Transfer System; • FOUP Nitrogen Purge System with 180 l/min flow capacity based on pneumatic actuation of Nitrogen injectors.



Solyndra

• United States
• Renewable Energy Semiconductor Manufacturing
• 1 - 100 Employee

• Sr. Member of Technical Staff

  • Jun 2008 - Aug 2011

  Responsible for design and development of Inline and Offline Metrology systems for CIGS, Moly, TCO processes on Solar elements • Solar Element Sample Insertion Pneumatic and Belt Driven Stages; • Gantry XYZ Stage for Film Thickness/ Surface Resistivity testing on the Tubular Solar elements; • Conceptual Design of Glass Sample Cassettes with feeder; used Samples Inspection Carousel and Removal; • Product Carrier Transfer Elevator; Metrology Systems Conveyors. Responsible for design and development of Inline and Offline Metrology systems for CIGS, Moly, TCO processes on Solar elements • Solar Element Sample Insertion Pneumatic and Belt Driven Stages; • Gantry XYZ Stage for Film Thickness/ Surface Resistivity testing on the Tubular Solar elements; • Conceptual Design of Glass Sample Cassettes with feeder; used Samples Inspection Carousel and Removal; • Product Carrier Transfer Elevator; Metrology Systems Conveyors.



Applied Materials/Obsidian, Sr. Member of Technical Staff

• Santa Clara,CA

• Sr. Member of Technical Staff,

  • 1997 - 2001

  Design and development of the Chemical-Mechanical 200 mm wafer Planarization System (CMP) based on continuous polishing Media presentation in the tape format 1 m wide; • XYZ Linear Motors Stage with unique assembly process; • Polishing Media Delivery Magazine with Load Cell polishing web tension controls; Company was successfully sold to Applied Materials. Design and development of the Chemical-Mechanical 200 mm wafer Planarization System (CMP) based on continuous polishing Media presentation in the tape format 1 m wide; • XYZ Linear Motors Stage with unique assembly process; • Polishing Media Delivery Magazine with Load Cell polishing web tension controls; Company was successfully sold to Applied Materials.



KLA

• United States
• Semiconductor Manufacturing
• 700 & Above Employee

• Sr. Mechanical Engineer

  • May 1990 - Nov 1996

  • XYZ Stage and Optical Plate assemblies for Automatic Optical Inspection System for PC Boards, including assembly Tooling; • System Base Structure of curried stabilized concrete; Structure assembly Tooling; • Flat Panel AOI based on PCB AOI system; • Automated PCB Defect Review Station; • XYZ Stage with Air Bearings for Wafer Inspection System; Unique assembly process. • Multiple Optical System layouts for Wafer and Particle inspection systems. Results – without increase in the work force Company moved from four prototypes to 70 Wafer Inspection systems per quarter in just two months; PCB AOI/Flat Panel AOI projects were sold to Acrotech, Japan.