Leadership Team                                         

Vince Evelsizer - Chief Executive Officer

Mr. Evelsizer is a co-founder of D3 Semiconductor. His 35 years of manufacturing and process experience give him a skill set ideally suited to building the next generation of power semiconductors.
Vince's background includes long tenures at AG Semiconductor Services, Bloo Solar, Maxim and Dallas Semiconductor where he launched and optimized wafer fabs spanning mixed signal technologies.




Tom Harrington - Chief Technology Officer

Mr. Harrington is a co-founder of D3 Semiconductor.  He has more than 30 years of semiconductor industry engineering and management experience.  Most recently, Tom served as Managing Director of Technology Development for Maxim Integrated Products. Tom leverages his mixed signal experience from Maxim and Dallas Semiconductor to drive innovation into D3's power technology.  Tom helped launch Dallas Semiconductor and really enjoys a technical challenge.

Tom holds BS Physics and MSEE degrees from Louisiana State University and has 14 US patents and several international patents awarded.


Albert Vasquez - Chairman

Mr. Vasquez is a co-founder and lead investor in D3 Semiconductor.  Albert has been instrumental in attracting and securing capital to fund D3's innovation and building strategic partnerships that help expand D3's global footprint.
Albert is Managing Director of AG Semiconductor Services and has a rich history in private equity and M&A.


Paul Leonard - Vice President Global Sales & Marketing

Paul brings over 30 years of rich experience to D3 ranging from semiconductor production management to product line (P&L) management. Throughout his career, Paul has led large discrete power device business units with revenues exceeding $400mm with companies such as ON Semiconductor, Fairchild Semiconductor and Intersil. Paul has launched product lines, launched dozens of products and built strategic plans which were adopted by the companies' boards of directors. Paul possesses extensive experience in Asia and helped bolster supply chains in Asia. Paul joins D3 from ON Semiconductor and he is leading our efforts to build industry partnerships.

Paul has a BSEE from the University of Michigan and an MBA from Florida Institute of Technology.



Wally Klass – President and Managing Director D3 Asia Sdn bhd and Director Global Business Development

Wally draws upon his 30 years of high impact International Business Development and Strategic Account Development aligning technology requirements with front end design applications, executive level relationships, operations, supply chain and channel construction consistent with the vision, strategy and objectives of D3 Semiconductor. Also Wally is President and Managing Director of D3 Semiconductor Asia Sdn bhd leading our Asia Pacific entity.
He brings the experience of key senior leadership and individual contributor roles with world class disciplines, process and success from Motorola Semiconductor, Intersil, AMI Semiconductor, AVNET Logistics, and Infineon along with customer and industry relationships helping and building the foundation of D3 Semiconductor and business units.

Wally holds a Bachelor of Science from Southwest Texas State University


John Spohnheimer - Director of Test & Assembly

John leads our assembly, test and laser operations in addition to managing our OSAT partners.  John has more than 30 yrs of product/test engineering and manufacturing experience in mixed signal and discrete testing disciplines.  John's background includes tenures at Dallas Semiconductor, Maxim and Texas Instruments.  John is our go-to guy to solve a myriad of issues relating to testing, yield and throughput.

John holds a BSEE and BS-Physics degrees from Iowa State.




James Qu - Director of Technology Development

James leads our device design effort and is integral to conveying our ideas into silicon.  James has over two decades of high-voltage discrete power semiconductor development experience with companies such as International Rectifier and Phoenix Semiconductor.  James’ experience includes development of IGBTs, Super Junction MOSFETs and fast recovery diodes.  James has a unique combination of technology and business experience that blends into ideas for great products.

James has 13 patents and numerous awards and publications.  James has a B.S. in Physics from Peking University, an M.S. in Physics from the University of Houston and a Ph.D. in Physics from the University of Houston.



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