Electronically-Controlled Squishable-Composite Switch - "Squitch"

A method and apparatus for making analog and digital electronics which includes a composite including a squishable material doped with conductive particles. A microelectromechanical systems (MEMS) device has a channel made from the composite, where the channel forms a primary conduction path for the device. Upon applied voltage, capacitive actuators squeeze the composite, causing it to become conductive. The squishable device includes a control electrode, and a composite electrically and mechanically connected to two terminal electrodes. By applying a voltage to the control electrode relative to a first terminal electrode, an electric field is developed between the control electrode and the first terminal electrode. This electric field results in an attractive force between the control electrode and the first terminal electrode, which compresses the composite and enables electric control of the electron conduction from the first terminal electrode through the channel to the second terminal electrode.

Researchers

Annie Wang / Trisha Andrew / Apoorva Murarka / Jeffrey Grossman / Frank Yaul / Sarah Paydavosi / Farnaz Niroui / Vladimir Bulovic / Jeffrey Lang

Departments: MIT.nano, Department of Materials Science and Engineering, Dept of Electrical Engineering & Computer Science, Office of the Vice President for Research
Technology Areas: Chemicals & Materials: Composites / Energy & Distribution: Electrochemical Devices
Impact Areas: Connected World

  • electronically controlled squishable composite switch
    United States of America | Granted | 8,933,496
  • electronically controlled squishable composite switch
    United States of America | Granted | 9,419,147

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