MEMS power switch startup raises $44m: Page 2 of 3

October 15, 2020 //By Nick Flaherty
MEMS power switch startup raises $44m
US startup Menlo Micro is raising $44m to take its MEMS switch into the power market.
are very linear to mmWave at 20Ghz and beyond and we have modelled above that for customers.”

“We entered the RF switching market first, that’s the low hanging fruit in test and measurement, aerospace and even in 5G infrastructure, as we can switch a lot of power. But we have also started engaging with multiple customers in relay and power distribution for the electrification of everything, in electric vehicles, aerospace, home energy distribution.

“The temperature range is a huge advantage,” he said. “With our 25W device at 20GHz the contact barely gets to 100C but we have characterised the device at over 200C and we have customers looking at temperatures in extreme heat and cold. That’s down to -45C at this point but applications go down lower for supercomputing.”

“In extreme temperatures you would have the drivers outside the package,” he said. These drivers are built in a 70V high voltage CMOS process. “Customers can add the driver into other devices – the only issue is making sure there’s a solid charge pump,” he said.

All of those attributes scale across the board.

“As we are developing the power products with the demo modules we will start seeing products in the next 12 to 24 months in areas such as high power wireless charging

“We build the devices in the Silex commercial fab as the expertise and equipment set mapped well there. We will scale this up over the next two to three years at that fab and we are planning the fab expansion for more capacity. In industrial IoT there a lot of opportunity the issue is to turn things on and off and that’s a big problem in the IoT. Switching lights or HVAC, that’s switching kW of power so that’s where we believe we have a real strong play long term.”

The round was led by 40 North Ventures alongside San Francisco-based Piva, Paladin Capital Group, Vertical Venture Partners,


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