Insights From Leading Edge

IFTLE 249 Merger Mania or Simple Economics? ; Wide Band Gap Semiconductors and Advanced Cooling

Merger Mania or Economics 101?

SST has recently shared an article by IC Insights entitled “Tsunami of M&A deals underway in the semiconductor industry in 2015.” [link]

While IFTLE certainly agrees with their conclusion, that mergers are occurring on a larger scale and more rapidly than in the recent past, we do not agree with their characterization “…It would be hard to characterize the huge wave of semiconductor mergers and acquisitions occurring in 2015 as anything but M&A mania, or even madness.”

As IFTLE has been preaching for some time now Economics 101 tells us that this is the natural evolution of any industry. As was explained in IFTLE 241 “Simply Obeying the Laws of Economics” [link] all industries go through cycles or stages as they mature and most of our industry is now in late stage 3 or early stage 4. IBM saw what was going on, assessed their position and got out.

A major part of these later stages is consolidation (or M&A deals). Our industry has always gone through boom or bust cycles, the difference this time is we are further along the industry maturity pathway. Actually economics also tells us that as this massive consolidation occurs those that remain will actually see less of the boom-or-bust cycles because the industry as it matures will stabilize. Those that understand this understand that we are getting ever closer to the “acquire or be acquired” phase in the electronics business and they are making their moves. Those that don’t….well they won’t be around to much longer. Still confused? Try:



That said, IFTLE certainly agrees with the closing statement of the IC Insights article “…the increasing number of mergers and acquisitions, leading to fewer major IC manufacturers and suppliers, is one of major changes in the supply base that illustrates the maturing of the industry… The strong movement to the fab-lite business model, and the declining capex as a percent of sales ratio, all promise to dramatically reshape the semiconductor industry landscape over the next five years.”

Wide Band Gap Semiconductors Require Advanced Cooling Solutions

While much of our industry is maturing (as discussed above) new segments are always evolving. Wide bandgap semiconductors is such a new semiconductor segment.

Wide bandgap (WBG) semiconductor materials allow power electronic components to be smaller, faster, more reliable, and more efficient than their silicon based counterparts. These capabilities make it possible to reduce weight, volume, and life-cycle costs in a wide range of power applications. WBG semiconductors have great potential as enabling materials in high-density power applications, satellite communications, and high-frequency and high-power radar making them the darlings of the defense industry.

high bandgap

WBG materials have the potential to:

Reduce energy losses: Eliminate up to 90% of the power losses that currently occur during AC-to-DC and DC-to-AC conversion.

Higher-voltage operation: Handle voltages more than 10X higher than Si based devices, greatly enhancing performance in high-power applications.

Higher-temperature operation: Operate at temperatures over 300°C (twice the max temp of Si-based devices).

Higher frequency operation: Operates at frequencies at least 10 times higher than Si-based devices, making possible new applications, such as radio frequency (RF) amplifiers. [link]

WBG Thermal Challenge being addressed by DARPA

While WBG materials are rapidly gaining acceptance in numerous applications, one of the challenges that remains to be addressed to fully exploit the promise of WBG semiconductors is thermal management . Alternative cooling solutions will be required to withstand the high temperatures of WBG devices.

bar cohenDARPA has been addressing this issue since 2013 under their MTO ICECool program headed up by Dr. Avram Bar-Cohen. Bar-Cohen, recently recognized by IEEE with the IEEE CPMT field award (the highest level packaging award available in the IEEE) is regarded as one of the world experts in thermal management issues.

The ICECool program has many of the countries key aerospace companies such as BAE, Boeing, HRL, Lockheed Martin, Northrup Grumman and Raytheon, developing solutions for this WBG thermal problem.

The key vs previous thermal solutions (see figure below) is to remove heat at the chip as close to the transistor heat generation as possible.


Click to view full size.

Although I cannot share the specifics with you here (ITARS restrictions), I can say that significant advances are being made in several of the ICECool programs that should allow WBG semiconductors to make major impact on our microelectronics future.

For all the latest in 3DIC and other advanced packaging, stay linked to IFTLE…


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