Intel details 22-nm process tuned for SoCs


— 1:00 PM on December 11, 2012

Intel has been cranking out desktop and mobile processors based on 22-nm tri-gate transistors for some time now. The company's Atom SoCs continue to be built using older 32-nm process technology, though. SoCs can require a mix of low-power, high-speed, and high-voltage transistors, making them somewhat more complex than traditional CPUs. At the International Electron Devices Meeting yesterday, Intel presented a paper detailing its plans for 22-nm SoCs.

The paper is highly technical and hasn't been published online, but EE Times has a good summary of the particulars. Intel's 22-nm SoC process includes several transistor types in addition to multi-layer interconnects, precision resistors, high-density capacitors, and spiral inductors. Chips built using the process should be suitable for mobile devices like smartphones and tablets, and Intel Director of Process Architecture and Integration Mark Bohr claims high-volume production will begin next year.

According to Bohr, the process gives Intel "a significant lead over [its] competitors." Sounds like he's particularly proud of the process' low leakage power, which should be especially desirable for mobile applications. Bohr also says the performance of Intel's 3D SoC transistors should be higher than that of competing solutions.

The 22-nm SoC process is likely to be used first for Silvermont, an architectural refresh of the Atom CPU core due out next year. The process reportedly scales down to 14 nm, as well, although there doesn't appear to be an official timeframe for that transistor shrink.

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