CMOS NEMS for tunable RF switching

March 11, 2019 //By Julien Happich
CMOS NEMS for tunable RF switching
As well as announcing its first commercial product, a CMOS-based 2D motion detector leveraging nanometer-sized electromechanical systems (NEMS), UK-based startup Nanusens was showcasing nanoscale mechanical RF switches at Mobile World Congress.


Nanusens’ CEO Dr. Josep Montanyà holding a
CMOS wafer.

Although the company didn’t want to share its roadmap on NEMS RF switches, Nanusens’ CEO Dr. Josep Montanyà told eeNews Europe that since the devices were built with the same standard CMOS processes used for its NEMS sensors, it took advantage of every tape out to run split wafers and make progress on the RF front too.

The CEO boasted the NEMS RF switches would beat all incumbent solutions found in today’s smartphones on a cost and footprint basis, especially if co-designed with extra functionalities in CMOS, such as the necessary antenna tuner.


Close-up on the NEMS RF switches.

“We are still elaborating the specs and that’s why we are also exhibiting this capability at MWC for potential customers so they can tell us what they need” Montanyà said, pointing to a prototype switch running under a microscope. When made aware of Menlo Micro’s venture in the RF market with MEMS switches built on glass substrates, the CEO emphasized how using a standard CMOS process really simplified everything from a design perspective, lowering overall systems costs.

 

Related articles:

Nanusens pursues ear bud market with MEMS-in-CMOS

Nanusens moves to UK to exploit crowdfunding tax break

Nanusens raises €1 million via crowd funding

MEMS-based RF switch delivers over 10X performance gain


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