Experience

eMagin Corporation

• United States
• Appliances, Electrical, and Electronics Manufacturing
• 1 - 100 Employee

• Director Of Engineering

  • Jan 2022 - Present

  Hopewell Junction, New York, United States AMOLED frontend process development



SDK New Materials Inc.

• United States
• Appliances, Electrical, and Electronics Manufacturing
• 1 - 100 Employee

• Director Of Process Development

  • Nov 2017 - Present

  Sunnyvale, California, United States • Developed electrochromic devices through thermal evaporation and sputtering • Successfully fabricated EC demo devices

• R&D Director

  • Oct 2020 - Jun 2022

  Santa Clara, California, United States • Research and development of Electrochromic device (EC), AR coating, hybrid flexible moisture barrier thin film • Built the research team and led the above projects. Wrote business plan, set product development direction, and interacted with investors. • Designed PVD process. Sourced and evaluated equipment (roll to roll sputtering and thermal evaporation, SEM, ellipsometer etc). Managed purchasing and installation etc.



Alta Devices

• Sr. Manufacture Engineer

  • Mar 2017 - Apr 2019

  Sunnyvale, California, United States • Developed PVD Anti-reflective coating process for III-V thin film solar cell • Involved PVD manufacture tool (FHR) installation and process development • Evaluated solar cell performance and process control using Tableau and JMP



Applied Microstructures

• SR SCIENTIST

  • Feb 2015 - Feb 2017

  SAN JOSE • Development of MVD /ALD process for oxide thin films fabrication Development of multilayered oxide/polymer moisture barrier layer for LED and OLEDs encapsulation • Developed unique QCM(Quartz Crystal Microbalance) method to investigate WVTR of moisture barrier layers • Design and fabrication of antireflection coating (TiO2/Al2O3/SiO2, TiO2/SiO2 etc.)



AETO-TECH

• United States

• Sr. Scientist/Chief Scientist

  • Jan 2010 - Jan 2015

  San Jose, California, United States • Lead engineers and technicians to design and setup PVD equipment and develop thin film lithium ion battery (SSLB)devices. • Developed Si hybrid anode rechargeable thin film lithium ion battery by magnetron sputtering, reactive sputtering, thermal evaporation, and RTP. • 3 thin film lithium ion battery device patents issued.



MeiVac Inc

• Sr. Scientist/technical leader

  • Jun 2008 - Dec 2009

  • Developed Al2O3 film over-coating sputtering process; Improved film uniformity through managing gas flow path to have uniform plasma. • Improved patterned wafer (via, trench) coverage by managing substrate bias and deposition power. • Characterized Al2O3 film properties by SEM, Ellipsometer and Nanometrics etc. • Help mechanical design engineer to have good sputtering equipment design to meet required thin film properties by customers



Vitex Systems

• Semiconductor Manufacturing
• 1 - 100 Employee

• Sr. Process Engineer

  • Mar 2007 - Jun 2008

  • Fabricated multilayered polymer/oxide thin film moisture barrier layer by vapor evaporation and pulse-DC reactive sputtering for CIGS solar cell and OLEDs moisture protection applications • Improved thin film adhesion by substrate surface treatment, such as plasma cleaning • Solved the problem of plasma damage to devices by managing deposition power and deposition process • Developed Al2O3 thin film sputtering processes and improved Al2O3 thin film mechanical and optical… Show more • Fabricated multilayered polymer/oxide thin film moisture barrier layer by vapor evaporation and pulse-DC reactive sputtering for CIGS solar cell and OLEDs moisture protection applications • Improved thin film adhesion by substrate surface treatment, such as plasma cleaning • Solved the problem of plasma damage to devices by managing deposition power and deposition process • Developed Al2O3 thin film sputtering processes and improved Al2O3 thin film mechanical and optical properties. • Investigated OLED performance after coating by I/V and EL image, barrier layer adhesion and plasma damage to device etc. Show less



Intematix

• United States
• Chemical Manufacturing
• 1 - 100 Employee

• Sr. Thin Film Engineer

  • Jun 2006 - Mar 2007

  • Developed CIGS thin film solar cell by Co-evaporation and magnetron sputtering; Improved CIGS layer stoichiometry, granularity, and managed its band gap by control Ga content. • Optimized Mo, ZnO, ZnO+Al layers deposition parameters. • Setup and modified thin film deposition equipment and annealing equipment • Characterization thin films by SEM, UV, and I/V



National Renewable Energy Laboratory

• United States
• Research Services
• 700 & Above Employee

• Scientist

  • Jan 2006 - Jun 2006

  • Successfully developed oxide thin films based solid-state bi-stable memory electrochromic devices through magnetron sputtering and evaporation and provided successful demo device. • Patent: Homogeneous, Dual Layer, Solid State, Thin film deposition for structural and/or electrochemical characteristics, PCN 09-36 2009108184/WO-A1 NDN- 177-2540-8442-5(licensed out)



University of Rochester

• United States
• Higher Education
• 700 & Above Employee

• Postdoctor

  • Sep 2002 - Jan 2005

  • Designed and fabricated organic light-emitting diodes (OLEDs) that combine organic multilayers and silver (or silver nanoparticle) layer to improve external quantum efficiency of OLEDs. This research involved patterning and wet etching techniques. • Investigated mechanism of surface plasma enhancement of fluorescence with self-assembled Ag (Au) nanoparticle thin films and Ag (Au) rough thin films. This technique will have profound applications in biosensors and solar cells.



National University of Singapore

• Research Fellow

  • Nov 2000 - Jul 2002

  • Developed CuAlO2 thin film using Magnetron Sputtering and PECVD and got high conductivity and crystallization thin film. • Investigated CuAlO2 thin film electrical and optical properties and potential electrode application for solar cell and LED.