The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2008
Filed:
Jun. 12, 2006
John A. Higgins, Westlake Village, CA (US);
John A. Higgins, Westlake Village, CA (US);
Teledyne Licensing, LLC, Thousand Oaks, CA (US);
Abstract
A variable IC capacitor includes a semiconductor layer doped to contain mobile charge carriers. Capacitor electrodes Cand Care disposed adjacent to each other on the layer's surface, gate electrodes Gand Gare disposed on opposite sides of Cand C, and source and sink electrodes are disposed on opposite sides of Gand G. Potentials are applied to the electrodes as needed to inject and then confine a finite charge into the region under Cand C. A drive voltage V applied between Cand Ccauses the charge packet to move back and forth beneath them, such that the effective capacitance C seen by drive voltage V is given by C=Q/V, where Q is the magnitude of the charge packet.