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, 2014
Filed:
Sep. 23, 2009
Paul Ronald Stribley, Plymouth, GB;
Soon Tat Kong, Sibu Sarawak, MY;
David John Verity, Plymouth, GB;
Paul Ronald Stribley, Plymouth, GB;
Soon Tat Kong, Sibu Sarawak, MY;
David John Verity, Plymouth, GB;
Abstract
A capacitor has first and second conducting plates and a dielectric region between the plates, wherein the dielectric region comprises two dielectric materials for each of which the variation of capacitance with voltage can be approximated by a polynomial having a linear coefficient and a quadratic coefficient, and wherein the quadratic coefficients of the two dielectric materials are of opposite sign. The capacitor comprises for example a first capacitor () and a second capacitor () that one connected in an anti-parallel manner. The insulating layer () of the first capacitor comprises silicon nitride and the insulating layer () of the second capacitor comprises silicon dioxide.