Disappearing polarization hetero-superjunction acoustic switch (diphas)
AssigneeGeorgia Tech Research Corporation
InventorWilliam Alan Doolittle
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Abstract
An exemplary embodiment of the present disclosure provides a disappearing polarization hetero-superjunction acoustic switch (DiPHAS), comprising a disappearing polarization dopant nitride bulk semiconductor superjunction, a first electrode, a second electrode, and a piezoelectric acoustic transducer. The first electrode can be coupled to a first side of the superjunction. The second electrode can be coupled to the second side of the superjunction. The piezoelectric acoustic transducer can be configured to impart acoustic signals to the superjunction. Actuation of the transducer can cause a flow of electrical current from the first electrode, through the superjunction, and to the second electrode.
Claims28
A disappearing polarization hetero-superjunction acoustic switch (DiPHAS) comprising:
- a superjunction;
- a first electrode coupled to the superjunction;
- and
- a second electrode coupled to the superjunction;
- wherein:
- imparting acoustic signals to the superjunction causes a change in a flow of electrical current from the first electrode, through the superjunction, and to the second electrode.
A disappearing polarization hetero-superjunction acoustic switch (DiPHAS) comprising:
- a superjunction;
- a piezoelectric acoustic transducer configured to impart acoustic signals to the superjunction;
- and
- a controller configured to:
- apply a drive signal to the piezoelectric acoustic transducer;
- and
- generate a preload signal to cause a static strain preload on the superjunction;
- wherein:
- actuation of the piezoelectric acoustic transducer causes a change in a flow of electrical current through the superjunction.
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A disappearing polarization hetero-superjunction acoustic switch (DiPHAS) comprising:
- a superjunction;
- a piezoelectric acoustic transducer;
- and
- a controller configured to transition the superjunction between:
- a zero net polarization gradient where there is no flow of electrical current through the superjunction;
- and
- a non-zero net polarization gradient where there is a flow of electrical current through the superjunction via actuation of the piezoelectric acoustic transducer to impart acoustic signals to the superjunction.
Dependencies are inferred from the claim text.