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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallMitsubishi closed VSIS, its Silicon Valley system-on-chip venture, around mid-1999, but did not abandon SoC development. It moved the work into existing Electronic Device Group operations. The episode reflects a difficult business equation: SoC sales were expected to grow, yet projected margins were far below those of Mitsubishi’s microcontroller products.
What was VSIS?
VSIS Inc. (VLSI Systems Solutions) was founded in 1996 in Sunnyvale, California, with backing from Mitsubishi Electronics America. It was a quasi-startup focused on semiconductor intellectual property (IP): developing reusable IP cores, scouting or acquiring technology, and conducting research, development, and product work for system-on-chip (SoC) devices. It was not a standalone chip fabrication plant. EE Times reported on the closure on February 24, 2000.
What happened to the venture?
Mitsubishi pulled the plug on VSIS around mid-1999. The operational transfer followed later: VSIS engineering was divided between Mitsubishi’s Durham, North Carolina site and its Electronic Device Group in Sunnyvale, which took over SoC development. Thus, the venture ended, but the company retained the work inside its established organization.
Mitsubishi did not give a definitive reason for closing VSIS. A Tokyo spokesman said that “markets and customers were moving at a really fast pace” and that Mitsubishi merged VSIS’s major functions into the Electronic Device Group to keep up. The explanation framed the move as an organizational response to changing markets, not as a public declaration that Mitsubishi was ending SoC development.
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Why was SoC a difficult business?
The economics described in the 2000 report help explain why growing sales did not necessarily make SoC attractive. Mitsubishi expected its SoC sales to rise from $636 million in 1998 to $1.2 billion by fiscal 2001, but expected SoC profit margins of just 1% to 2%. For microcontroller products, the expected margin was 10% to 12%. These were Mitsubishi’s reported expectations, not audited results or a VSIS-specific profit statement.
| Measure | Reported figure | Qualification |
|---|---|---|
| Mitsubishi SoC sales | $636 million in 1998; expected to reach $1.2 billion by fiscal 2001 | Mitsubishi expectations reported in 2000; not VSIS revenue |
| Expected SoC profit | 1%–2% | Mitsubishi expectation reported in 2000 |
| Expected microcontroller profit | 10%–12% | Mitsubishi expectation reported in 2000 |
Several forces squeezed returns: SoC development was expensive, customers resisted paying large premiums for integration, and intense competition pressed prices down. The report pointed to consumer products such as DVD players, digital cameras, set-top boxes, and hard-disk drives, where manufacturers had little room for costly components. It also noted that companies often underestimated development costs. In some cases, multi-chip packaging was being considered instead of integrating every function onto one die.
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The technical challenge was substantial as well. Masamichi Ogura, then group president of Fujitsu’s Electronic Devices Group, said, “To be honest, from a technology and manufacturing standpoint, system-on-chip is quite a difficult task.” Integration can simplify a system, but it does not erase the costs and risks of designing and manufacturing a complex chip.
What role did intellectual property play?
VSIS was intended to strengthen Mitsubishi’s pool of reusable IP, an important input to SoC design. The report characterized Mitsubishi’s IP portfolio as relatively weak compared with competitors and said it had been slow to license outside IP. Mitsubishi licensed the ARM TDMI core in 1999, after ARM had already become widely adopted in mobile phones and ASICs.
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VSIS announced a 1998 license for a multimedia DSP core from Bops, but the report said it was unclear whether that core reached silicon. Mitsubishi also licensed DSP Group’s TeakLite DSP core and maintained its own proprietary DSP core. The company said it would continue developing and acquiring IP to meet customer requirements. These examples show the distinction between securing a license and establishing that a particular core made it into a production chip.
Was VSIS part of a wider U.S. retreat?
Yes, the closure followed broader Mitsubishi semiconductor restructuring in the United States. The Register reported in October 1998 that Mitsubishi planned to close Mitsubishi Electronics America and Mitsubishi Semiconductor America operations, folding semiconductor design work into Mitsubishi Electronics America’s semiconductor marketing operation. The VSIS transfer came amid those changes.
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That historical retrenchment should not be confused with Mitsubishi Electric’s separate North American reorganization in 2026. In its official announcement, the company said Mitsubishi Electric US would continue to handle semiconductor-device business. The 2026 release describes that later reorganization.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What the closure does—and does not—show
VSIS’s story is an example of how a semiconductor company could see demand and revenue growth without seeing comparable profitability. Reusable IP and tighter integration offered technical and commercial possibilities, but did not automatically overcome high development costs, customer price resistance, or low-margin end markets. Mitsubishi’s explanation emphasized the speed of market and customer changes; semiconductor analyst Michito Kimura of IDC Japan offered a broader judgment: “For Japanese companies, system-on-chip is a horrible business.”
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The public account does not establish VSIS’s audited finances, a closure charge, its full employee count, or a complete list of its IP that reached production. Nor does it provide a definitive account of staff changes. Those gaps make it impossible to treat the closure as proof that every VSIS project failed or to quantify the venture’s financial losses.
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