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US 2017/0323885 A1Published application
High quality varactor
OwnerWallace Shepherd Pittsinventor
Life of this patent
Estimating the term…
Abstract
Various examples are provided for varactors (variable capacitors). Described are both simple and complex forms of variable capacitors and improvements thereof. The varactor can be sufficiently small (narrow) to be isolated on a chip as a single or plurality of devices. Devices may be expanded using multiple varactors. In addition, various varactors can further be improved by the inclusion of a thin material to reduce the resistance of the varactor device. Diodes may also be implemented using the disclosed forms.
Claims19
A varactor, comprising:
- a first conductive electrode;
- a semiconductor formed over the conductive electrode;
- an insulator formed over the semiconductor;
- and
- a second conductive electrode formed over the insulator.
2 more elements
A varactor, comprising:
- a semiconductor formed over a first insulator or a base conductive electrode;
- a second insulator formed over the semiconductor;
- and
- a second conductive electrode formed over the insulator.
1 more element
A varactor, comprising:
- a conductive electrode;
- a thin material formed over the conductive electrode;
- the thin material configured to reduce the series resistance of the varactor;
- and
- a semiconductor formed over the thin material.
2 more elements
Dependencies are inferred from the claim text.