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High reliability RF switch based on phase-change material

  • US 10,461,253 B1
  • Filed: 08/14/2018
  • Issued: 10/29/2019
  • Est. Priority Date: 08/14/2018
  • Status: Active Grant
First Claim
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1. A radio frequency (RF) switch comprising:

  • a heating element;

    a thermally resistive material adjacent to first and second sides of said heating element;

    a heat valve under said heating element;

    a heat spreader under said heat valve and over a substrate;

    a nugget comprising a thermally conductive and electrically insulating material situated on top of said heating element;

    a phase-change material having an active segment situated approximately over said nugget and passive segments situated approximately under input/output contacts of said RF switch.

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