Mentor Graphics

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Mentor Graphics
TypePrivate[1] (Independent Subsidiary)
IndustryEDA, Embedded Software
FounderTom Bruggere Edit this on Wikidata
HeadquartersWilsonville, Oregon,
United States
45°19′10″N 122°45′46″W / 45.31944°N 122.76278°W / 45.31944; -122.76278Coordinates: 45°19′10″N 122°45′46″W / 45.31944°N 122.76278°W / 45.31944; -122.76278
ProductsNucleus OS, Sourcery CodeBench, ModelSim/QuestaSim, Calibre, Veloce
RevenueIncrease$1.28B USD (2017)[2]
Increase$155 million USD (2017)[2]
Total assets
  • Increase US$ 1.745284 billion (2013) [3]
  • Increase US$ 1.550675 billion (2012) [4]
Number of employees
5,968 (2017)[5]
WebsiteSiemens EDA

Mentor Graphics is a US-based electronic design automation (EDA) multinational corporation for electrical engineering and electronics, headquartered in Wilsonville, Oregon. Founded in 1981, the company was acquired by Siemens in 2017. Since 2021, the former Mentor Graphics operates as a division at Siemens named Siemens EDA.

Mentor Graphics was noted for distributing products that assist in electronic design automation, simulation tools for analog mixed-signal design, VPN solutions, and fluid dynamics and heat transfer tools. The company leveraged Apollo Computer workstations to differentiate itself within the CAE market with its software and hardware.


Mentor Graphics was founded in 1981 by Tom Bruggere, Gerry Langeler and Dave Moffenbeier. The first round of money, worth $1 million, came from Sutter Hill, Greylock, and Venrock Associates. The next round was $2 million from five venture capital firms, and in April 1983 a third round raised an additional $7 million. Mentor Graphics was one of the first companies to attract venture capital to Oregon.[citation needed]

Apollo Computer workstations were chosen as the initial hardware platform. Based in Chelmsford, Apollo was less than a year old and had only announced itself to the public a few weeks prior to when the founders of Mentor Graphics began their initial meetings.

When Mentor entered the CAE market the company had two technical differentiators: the first was the software - Mentor, Valid, and Daisy each had software with different strengths and weaknesses. The second, was the hardware - Mentor ran all programs on the Apollo workstation, while Daisy and Valid each built their own hardware. By the late 1980s, all EDA companies abandoned proprietary hardware in favor of workstations manufactured by companies such as Apollo and Sun Microsystems.

After a frenzied development, the IDEA 1000 product was introduced at the 1982 Design Automation Conference, though in a suite and not on the floor.[6]



Year announced Company Business Value (USD) References
1995 Microtec Research Software development $130 million [7]
1999 VeriBest EDA subsidiary of Intergraph Corp. not disclosed [8][9]
2002 Accelerated Technology RTOS & embedded software not disclosed [10]
2002 Innoveda Printed circuit board & wire harness design $160 million [11]
2004 Project Technology Executable UML not disclosed [12]
2007 Sierra Design Automation Place and route $90 million [13]
2008 Flomerics Computational fluid dynamics $59.72 million [14]
2009 LogicVision Silicon manufacturing testing $13 million [15]
2010 Valor Computerized Systems PCB systems manufacturing $82 million [16]
2010 CodeSourcery GNU-based tools not disclosed [17]
2014 Nimbic Electromagnetic simulation not disclosed [18]
2014 Berkeley Design Automation AMS circuit verification not disclosed [19]
2015 Tanner EDA AMS & MEMS integrated circuits not disclosed [20]
2015 Calypto Design Systems High level synthesis not disclosed [21]


  • In June 2008, Cadence Design Systems offered to acquire Mentor Graphics in a leveraged buyout. On 15 August 2008, Cadence withdrew this offer quoting an inability to raise the necessary capital and the unwillingness of Mentor Graphics' Board and management to discuss the offer.[22]
  • In February 2011, activist investor Carl Icahn offered to buy the company for about $1.86 billion in cash.[23]
  • In November 2016, Mentor Graphics announced that it was to be acquired by Siemens for $4.5 billion,[24] at $37.25 per share, a 21% premium on Mentor's closing price on the previous Friday.[25] The acquisition was completed in March 2017.[26] Mentor Graphics started to operate as "Mentor, a Siemens Business".[27] Under the terms of the acquisition, Mentor Graphics kept its headquarters in Wilsonville with workforce intact, and operated as an independent subsidiary.[28]
  • In January 2021, Mentor became a division of Siemens and was renamed as Siemens EDA.[29]


Mentor product development was located in the US, Taiwan, Egypt, Poland, Hungary, Japan, France, Canada, Pakistan, UK, Armenia, India and Russia.

Notable persons[edit]

James "Jim" Ready, left Mentor in 1999 to form the embedded Linux company MontaVista. Neil Henderson joined Mentor Graphics in 2002 with the acquisition of Accelerated Technology Inc. Stephen Mellor, a leader in the UML space and co-originator of the Shlaer-Mellor design methodology, joined Mentor Graphics in 2004 following the acquisition of Project Technology.


Walden C. Rhines was the company's chief executive officer and president[30] following the acquisition by Siemens, until November 2018 when he became CEO Emeritus. Tony Hemmelgarn is now the president and CEO of Siemens Digital Industries Software, which includes the former Mentor product line.


Entrance to company headquarters

Mentor offered the following tools:

Electronic Design Automation[edit]

Embedded Systems[edit]

  • Mentor Embedded Linux[31] for ARM, MIPS, Power, and x86 architecture processors
  • Real-time operating systems:
    • Nucleus OS (acquired in 2002 when Mentor acquired Accelerated Technology, Inc.)
    • VRTX (acquired in 1995 when Mentor bought Microtec Research)
  • AUTOSAR implementation:
    • Embedded implementation VSTAR in part acquired from Mecel in 2013[32]
    • Configuration tooling Volcano Vehicle Systems Builder (VSB)
  • Development Tools:
    • Sourcery CodeBench and Sourcery GNU toolchains (acquired in 2010 when Mentor acquired CodeSourcery)
    • Inflexion UI - (Next Device was acquired by Mentor in 2006)
    • xtUML Design Tools: BridgePoint (acquired in 2004 when Mentor acquired Project Technology)
  • VPN Solutions:
    • Nucleus Point-to-Point Tunneling Protocol (PPTP) software
    • Nucleus NET networking stack
    • Nucleus implementation of the Microsoft Point-to-Point Encryption (MPPE) protocol
    • Nucleus PPP software

FPGA Synthesis[edit]

Electrical Systems, Cabling, and Harness[edit]

  • Capital - a suite of integrated tools for the design, validation and manufacture of electrical systems and harnesses
  • VeSys - a mid-market toolset for vehicle electrical system and harness design


  • ModelSim is a hardware simulation and debug environment primarily targeted at smaller ASIC and FPGA design
  • QuestaSim is a simulator with advanced debug capabilities targeted at complex FPGA's and SoC's. QuestaSim can be used by users who have experience with ModelSim as it shares most of the common debug features and capabilities. One of the main differences between QuestaSim and Modelsim (besides performance/capacity) is that QuestaSim is the simulation engine for the Questa Platform which includes integration of Verification Management, Formal based technologies, Questa Verification IP, Low Power Simulation and Accelerated Coverage Closure technologies. QuestaSim natively supports SystemVerilog for Testbench, UPF, UCIS, OVM/UVM where ModelSim does not.
  • Eldo is a SPICE simulator
  • Xpedition AMS is a virtual lab for mechatronic system design and analysis
  • ADiT is a Fast-SPICE simulator
  • Questa ADMS is a mixed-signal verification tool


  • The Veloce product family enables SoC emulation and transaction-based acceleration.

Mechanical Design[edit]

  • Fluid Dynamics and Heat Transfer tools:
  • Thermal Characterization and Thermal Interface Material (TIM) Measurement equipment:
    • Simcenter T3STER is a hardware product that embodies an implementation of the JEDEC JESD51-1 standard for IC package thermal characterization and is compliant with JESD51-14 for Rth-JC measurement
    • Simcenter TERALED provides automation of the CIE 127:2007 standard providing total flux, chromaticity and correlated color temperature (CCT) for power LEDs. With T3Ster it provides thermal resistance metrics for LEDs based on the real dissipated heating power.
    • Simcenter DYNTIM extends T3Ster, providing a dynamic thermal test station for thermal conductivity measurements of thermal interface materials (TIMs), thermal greases and gap pads.
  • Simcenter Flomaster is a 1D or system-level CFD solution for analyzing fluid mechanics in complex pipe flow systems (from the acquisition of Flowmaster Ltd in 2012).
  • CADRA Design Drafting is a 2-1/2D mechanical drafting and documentation package specifically designed for drafting professionals. It provides the tools needed to develop complex drawings quickly and easily (from the acquisition of the CADRA product in 2013).


  1. ^ "Siemens says Mentor will keep its name, business and HQ". 4 April 2017.
  2. ^ a b "Mentor Graphics Reports Fiscal Fourth Quarter Results" (PDF). Retrieved 2018-01-22.
  3. ^ "MENTOR GRAPHICS CORP 2013 Q3 Quarterly Report Form (10-Q)" (XBRL). United States Securities and Exchange Commission. December 4, 2013.
  4. ^ "MENTOR GRAPHICS CORP 2012 Annual Report Form (10-K)" (XBRL). United States Securities and Exchange Commission. March 15, 2013.
  5. ^ "MENTOR GRAPHICS CORP 2017 Form 10-K". Retrieved 2018-01-22.
  6. ^ The Mentor Graphics Story copyright 1988 Mentor Graphics Corporation
  7. ^ News, Bloomberg (1995-10-11). "COMPANY NEWS; MENTOR GRAPHICS TO ACQUIRE MICROTEC RESEARCH (Published 1995)". The New York Times. ISSN 0362-4331. Retrieved 2021-01-23.
  8. ^ "Mentor Graphics acquires Intergraph's VeriBest subsidiary". Portland Business Journal. Retrieved 2019-03-22.
  9. ^ Ascierto, Jerry. "Mentor Buys Veribest". EDN. Retrieved 2019-03-22.
  10. ^
  11. ^ "Squeeze is on, as Mentor, Cadence make acquisitions". EETimes. Retrieved 2019-03-22.
  12. ^
  13. ^ Retrieved 2021-01-23. Missing or empty |title= (help)
  14. ^
  15. ^ "Mentor now owns LogicVision". Portland Business Journal. August 18, 2009. Retrieved 2009-08-22.
  16. ^
  17. ^
  18. ^ Corp, Mentor Graphics. "Mentor Graphics Acquires Nimbic, Inc". Retrieved 2021-01-23.
  19. ^ Graphics, Mentor. "Mentor Graphics Acquires Berkeley Design Automation to Advance Nanometer Analog/Mixed-Signal Verification". Retrieved 2021-01-23.
  20. ^ "Mentor Graphics Acquires Tanner EDA". Retrieved 2017-09-08.
  21. ^ Corporation, Mentor Graphics. "Mentor Graphics Acquires Calypto Design Systems". Retrieved 2021-01-23.
  22. ^ "Cadence Withdraws". Retrieved 2008-09-18.
  23. ^
  24. ^ Machine Design Siemens Acquires Mentor Graphics for $4.5 Billion Retrieved November 14, 2016
  25. ^ "Siemens to expand its digital industrial leadership with acquisition of Mentor Graphics". Retrieved 2016-11-14.
  26. ^ Rogoway, Mike. "Siemens completes $4.5 billion purchase of Mentor Graphics". The Oregonian/OregonLive. Retrieved 30 March 2017.
  27. ^ "Mentor, a Siemens Business".
  28. ^ "Siemens says Mentor will keep its name, business and HQ". 4 April 2017.
  29. ^
  30. ^ "Executive Team". Retrieved 2018-01-22.
  31. ^ "Mentor Embedded Linux Development Platform". Retrieved 2016-09-19.
  32. ^ "Mentor Graphics acquires Mecel Picea AUTOSAR Development Suite". Retrieved 2016-09-01.