Skip to Content
Find More Like This
Return to Search

Contact method to allow benign failure in ceramic capacitor having self-clearing feature

United States Patent

June 26, 2012
View the Complete Patent at the US Patent & Trademark Office
A capacitor exhibiting a benign failure mode has a first electrode layer, a first ceramic dielectric layer deposited on a surface of the first electrode, and a second electrode layer disposed on the ceramic dielectric layer, wherein selected areas of the ceramic dielectric layer have additional dielectric material of sufficient thickness to exhibit a higher dielectric breakdown voltage than the remaining majority of the dielectric layer. The added thickness of the dielectric layer in selected areas allows lead connections to be made at the selected areas of greater dielectric thickness while substantially eliminating a risk of dielectric breakdown and failure at the lead connections, whereby the benign failure mode is preserved.
Myers; John D. (Kokomo, IN), Taylor; Ralph S. (Noblesville, IN)
Delphi Technologies, Inc. (Troy, MI)
12/ 469,087
May 20, 2009
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT The subject invention was made under a CRADA Number 0700801 between Delphi Automotive Systems LLC and UChicago Argonne, LLC, as operator of Argonne National Laboratory for the United States Department of Energy. The United States government has certain rights in this invention.