VLSI Technology
| Company type | Public |
|---|---|
| Industry | Semiconductor industry |
| Predecessor | VTI |
| Founded | 1979 |
| Founder | Jack Balletto, Dan Floyd, Gunnar Wetlesen, Doug Fairbairn |
| Fate | Acquired by Philips Electronics in June 1999 |
| Successor | NXP Semiconductors (via Philips Electronics) |
| Headquarters | San Jose , United States |
Area served | United States, United Kingdom, France, Germany, Italy, Japan, Singapore, Taiwan |
Key people | Alfred J. Stein (CEO from 1982) |
| Products | Custom and semi-custom integrated circuits (ICs), ASICs, IC design software and tools |
| Owner | Philips Electronics (post-1999) |
| Parent | Philips Electronics (post-1999) |
VLSI Technology, Inc. was a U.S.-based enterprise focused on the creation and production of both custom and semi-custom integrated circuit (IC) solutions. Located in San Jose, California, VLSI, together with LSI Logic, played a significant role in the application-specific integrated circuit (ASIC) sector, promoting the integration of advanced embedded systems into affordable products.
Originally known as "VTI," the company abandoned this name during the mid-1980s to resolve trademark disputes. In June 1999, Philips Electronics acquired VLSI for approximately $1 billion, and it now operates under the umbrella of NXP Semiconductors.
History
Established in 1979 by Jack Balletto, Dan Floyd, Gunnar Wetlesen—all formerly with Fairchild Semiconductor via Synertek—and Doug Fairbairn from Xerox PARC and Lambda magazine, VLSI rapidly gained recognition within Silicon Valley. Alfred J. Stein took over as CEO in 1982. The company constructed its initial fabrication facility in San Jose and later added a second plant in San Antonio, Texas. VLSI went public on February 23, 1983, issuing 4 million shares at $13 each on NASDAQ under the ticker VLSI. Philips purchased the firm in 1999 at $21 per share.
Although initially conceived as a contract wafer fabrication service, venture capitalists encouraged VLSI to develop integrated circuit design software to complement its foundry capabilities. Drawing expertise from Caltech and UC Berkeley, VLSI emerged as an innovator in the electronic design automation (EDA) field by delivering a comprehensive suite of design tools founded on the 'lambda-based' design principles advocated by Carver Mead and Lynn Conway.
One of its early notable collaborations occurred in 1982 when VLSI partnered with Apple to create a custom chip for the then-unreleased Macintosh. Despite producing a working prototype swiftly, performance shortcomings led Apple to opt for a more conventional chip solution.
VLSI was among the pioneers to introduce standard cell technology to the merchant ASIC market during the early 1980s, offering an alternative to LSI Logic’s emphasis on gate arrays. Before this innovation, such technologies were primarily utilized by large vertically integrated corporations like AT&T and IBM.
The company’s design tool portfolio covered all stages of IC development: design entry, simulation, cell-based routing (chip compiler), datapath compilers, SRAM and ROM compilers, and state machine compilers—delivering a complete IC design workflow. Capabilities included transistor-level editing, design rule checking (DRC), layout versus schematic (LVS) verification, parasitic extraction coupled with Spice simulation, timing back-annotation, and automated generation of datasheets.
In 1991, VLSI spun off its IC design tools division as Compass Design Automation, which was subsequently acquired by Avanti Corporation in 1997.
The physical design software developed by VLSI not only supported its ASIC operations but also influenced the broader EDA marketplace. Confronted with shortcomings of existing commercial solutions for high-volume ASIC manufacturing, VLSI created proprietary automated layout tools. Later entrants such as Tangent Systems offered comparable technologies before being absorbed by Cadence Design Systems.
By the early 1990s, VLSI trailed behind industry standards in adopting the 1.0 μm fabrication process. Collaborating technologically with Hitachi, it launched a process and cell library approximating 1.0 μm but closer to 1.2 μm gate size. Meanwhile, the industry gravitated toward Verilog HDL and synthesis flows dominated by Cadence and Synopsys. Due to delayed openness and limited adoption of Compass Design Automation’s offerings, VLSI’s tools struggled to maintain competitiveness.
To foster process advancement, VLSI briefly ventured into producing high-speed static RAM (SRAM) but exited upon recognizing it could not match cost efficiencies of larger semiconductor manufacturers.
In 1990, VLSI became a co-founder of ARM Limited, supporting ARM processor development alongside Acorn Computers and Apple. Although initial adoption was slow due to embedded 32-bit processor complexity, ARM’s growth accelerated following introduction of 'Thumb' instruction set extensions and Ericsson’s selection of ARM processors for GSM mobile phones—laying a vital foundation for ARM’s expansion.
During the early 1990s, VLSI engineered proprietary PC chipsets utilizing its "Megacells" library technology that integrated peripheral I/O logic. These chipsets helped reduce costs for Intel- or Motorola-based PC systems—including early Apple Power Macintosh computers. Innovations included PCI bridge logic and the GraphiCore 2D graphics accelerator project led by Desi Rhoden in 1994. GraphiCore supported synchronous DRAM ahead of DDR memory standards; Rhoden later founded AMI consortium that influenced DDR development. Despite these advances, VLSI eventually lost chipset market share to Intel’s integrated processor-chipset solutions.
VLSI also maintained involvement with British Columbia Bell’s Pacific Microelectronics Centre (PMC). When PMC divested its semiconductor IP division, Sierra Semiconductor acquired it instead of VLSI; this acquisition led to PMC Sierra becoming a leading telecom ASSP vendor.
Employees and innovations from VLSI’s design technology unit transitioned through Redwood Design Automation into companies like Cadence Design Systems. The sale of Compass Design Automation to Avant! Corporation preceded Avant!’s eventual acquisition by Synopsys.
International growth, ARM collaboration, GSM involvement, and Philips/NXP acquisition
VLSI maintained operations in multiple countries including the United States, United Kingdom, France, Germany, Italy, Japan, Singapore, and Taiwan. Its facility in Tempe was instrumental in creating successful chipsets for IBM PC compatible motherboards as well as early Apple Power Macintosh computers.
The design center located in Richardson, Texas was responsible during the 1990s for producing significant standard cell ASICs. This included pioneering the first floating-point co-processors for Cyrix and developing digital signal processors used in telecommunications switching and echo-cancellation devices for Alcatel-Lucent.
In 1990, VLSI Technology partnered with Acorn Computers and Apple Computer to establish ARM Ltd. At that time, VLSI was the exclusive manufacturer of ARM-based integrated circuits and the only ASIC developer utilizing ARM cores.
By 1997, VLSI introduced the inaugural ARM chipset targeting Set-top box manufacturers within cable and satellite television sectors. This chipset, called VISTA (VLSI Integrated Set-Top Architecture), differed from earlier custom-only STB solutions by being a merchant 4-chip set that incorporated an ARM7TDMI core, transport/demultiplexer functionality, and a Mediamatics MPEG 1/2 decoder combined with On Screen Display capabilities.
By 1998, Ericsson emerged as VLSI’s largest client, generating annual revenues of $120 million. A major competitive advantage was VLSI’s datapath compiler (VDP), which contributed substantially to silicon sales and gross profit margins. The Wireless Products division based in Sophia-Antipolis, France focused on creating algorithms and circuits supporting the GSM standard as well as cordless technologies such as European DECT and Japan’s PHS.
Fueled by expansion in wireless handset integrated circuits, Philips Electronics acquired VLSI in June 1999 for approximately $1 billion. This business unit eventually became part of Philips’ spin-off company, NXP Semiconductors.
Products
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