Stephen Trimberger

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Stephen Trimberger
Born 1955 (age 62–63)
Residence Incline Village, NV, USA
Nationality United States
Alma mater Ph.D. California Institute of Technology
Known for Field-Programmable Gate Array (FPGA) technology
Scientific career
Fields Computer science

Stephen "Steve" Trimberger (born 1955) is an American computer scientist, electrical engineer and philanthropist.


Trimberger grew up in Sacramento, CA, USA and earned his B.S. in Engineering and Applied Science from the California Institute of Technology (Caltech), M.S. in Information and Computer Science from the University of California at Irvine and Ph.D. in Computer Science from the California Institute of Technology.

While attending Caltech, Trimberger joined the Planet-Crossing Asteroid Survey (PCAS) project, with principal investigator Gene Shoemaker, operated by Eleanor "Glo" Helin. PCAS searched for asteroids that could potentially impact planets, including Earth. In recognition for his contributions to this project, minor planet 2990 was named "Trimberger."


Trimberger joined VLSI Technology in 1982 where, as a member of the original Design Technology group, he developed a variety of computer-aided design software including interactive tools, simulation, physical design automation and logical design automation. During this time, he wrote An Introduction to CAD for VLSI,[1] collecting and explaining the fundamental algorithms and techniques used in the early days of the CAE industry.

Since 1988, he has been employed at Xilinx, a fabless semiconductor company in San Jose, Silicon Valley, CA. He was a member of the architecture definition group for the Xilinx XC4000 Field-Programmable Gate Array (FPGA), the first FPGA with dedicated arithmetic and memory.[2] At the same time, he was the technical leader for the XC4000 design automation software. He led the architecture definition group for the Xilinx XC4000X device families. He developed a Time-Multiplexed FPGA[3] and software[4] to map to it in the 1990s, long before Tabula commercialized the time-folded FPGA. He is an inventor on approximately thirty patents in this area. In the early 1990s, he edited and co-wrote Field-Programmable Gate Array Technology,[5] introducing the first generation of academic researchers to the industrial side of programmable-logic architecture, tools and design.

He designed the bitstream security system for the Xilinx Virtex-II [US Patent #7,058,177], the first bitstream encryption deployed in FPGAs.[citation needed] His inventions on that security system are the basis of security in all commercial FPGAs from Xilinx and others.[citation needed] He was also instrumental in bringing 3D packaging from a lab curiosity to a product in the mid-2000s [US Patent 7,605,458]. This was deployed by Xilinx as Stacked Silicon Interconnect Technology (SSIT).[6] Trimberger led the Xilinx Advanced Development group for many years and is currently Xilinx Fellow in Xilinx Research Labs in San Jose.

Trimberger has written three books on computer-aided design for integrated circuits and FPGAs. He has written dozens of papers on design automation and FPGA architectures.[7] He is a four-time winner of the Ross Freeman Award, Xilinx’s annual award for technical innovation.[citation needed]


  1. ^ "An Introduction to CAD for VLSI". Retrieved 11 March 2014. 
  2. ^ "FPL2012". Retrieved 11 March 2014. 
  3. ^ "Time-Multiplexed FPGA". Retrieved 11 March 2014. 
  4. ^ "Scheduling designs into a time-multiplexed FPGA". Retrieved 11 March 2014. 
  5. ^ "Field-Programmable Gate Array Technology". Retrieved 11 March 2014. 
  6. ^ "SEMI". Retrieved 11 March 2014. 
  7. ^ "Stephen Trimberger". Association for Computing Machinery. Retrieved 26 May 2016. 

[1] [2] [3] [4] [5]

External links[edit]

  1. ^ "2015 Hall of Fame Inductees | The Henry Samueli School of Engineering at UC Irvine". Retrieved 2018-03-10. 
  2. ^ "Stephen Trimberger". Retrieved 2018-03-10. 
  3. ^ "IEEE Fellows Made Their Mark on Industry - IEEE - The Institute". Retrieved 2018-03-10. 
  4. ^ Sengupta, A.; Frassetti, L. (Winter 2018). "William S. Carter and Stephen Trimberger Receive the 2018 IEEE Donald O. Pederson Award in Solid-State Circuits [IEEE News]". IEEE Solid-State Circuits Magazine. 10 (1): 82–82. doi:10.1109/MSSC.2017.2769470. ISSN 1943-0582. 
  5. ^ "Dr. Stephen M. Trimberger". NAE Website. Retrieved 2018-03-10.