MEMS switching/logic. The premise was that you could have a mechanical switch that was actuated electrostatically, and just stayed where you put it due to magic

MEMS switching/logic. The premise was that you could have a mechanical switch that was actuated electrostatically, and just stayed where you put it due to magic, consuming no power, until you altered the state electrostatically again. You could implement logic that functioned with effectively no static power consumption, but capable of passing gigahertz signals. To get an idea why it didn't pan out, here's a PDF[1] from Analog Devices for the ADGM1144 SP4T MEMS based switch ($50 in quantity, $72.88 for one from Digikey). [1] https://www.analog.com/media/en/technical-documentation/data-sheets/adgm1144.pdf https://www.analog.com/media/en/technical-documentation/data... [2] https://www.digikey.com/en/products/detail/analog-devices-inc/ADGM1144BCCZ-RL7/16895779 https://www.digikey.com/en/products/detail/analog-devices-in...