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:
Dec. 19, 2006
Filed:
Nov. 03, 2003
Clinton W. Schneider, Plymouth, MN (US);
R. Jason Hemphill, Pickens, SC (US);
Katherine E. Sudduth, Easley, SC (US);
Thomas V. Graham, Boulder, CO (US);
Thomas F. Strange, Easley, SC (US);
Clinton W. Schneider, Plymouth, MN (US);
R. Jason Hemphill, Pickens, SC (US);
Katherine E. Sudduth, Easley, SC (US);
Thomas V. Graham, Boulder, CO (US);
Thomas F. Strange, Easley, SC (US);
Pacesetter, Inc., Sunnyvale, CA (US);
Abstract
A method of producing an electrode for use in the manufacture of electrolytic capacitors for implantable cardioverter defibrillators comprises first coating the foil with a photoresist, second, applying a holographic image to the photoresist, third, removing a portion of the photoresist to expose a portion of the foil and create a pattern of photoresist on the foil and etching the foil. Alternatively, the method comprises applying an oxide or metal layer to the exposed foil surface, removing the pattern of photoresist to create a pattern of oxide or metal and etching the foil. The patterns of photoresist, oxide or metal all retard or prevent etching of the foil where the foil surface is covered. This results in a pattern of unetched foil with the remaining area being heavily etched. The resulting patterns stop crack propagation through the etched portions to yield foils with high gain and improved strength.