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:
Nov. 23, 2010
Filed:
Sep. 24, 2007
Kevin M. Gaffney, Dayton, MN (US);
Kurt J. Casby, Grant, MN (US);
Joachim Hossick-schott, Minneapolis, MN (US);
John D. Norton, New Brighton, MN (US);
Angela M Rodgers, Minneapolis, MN (US);
Karen J Hulting, Plymouth, MN (US);
Kevin M. Gaffney, Dayton, MN (US);
Kurt J. Casby, Grant, MN (US);
Joachim Hossick-Schott, Minneapolis, MN (US);
John D. Norton, New Brighton, MN (US);
Angela M Rodgers, Minneapolis, MN (US);
Karen J Hulting, Plymouth, MN (US);
Medtronic, Inc., Minneapolis, MN (US);
Abstract
A high voltage capacitor anode for an implantable medical device is fabricated by sintering, anodizing and heat treating a pressed tantalum powder slug. The sintering may be performed at a temperature between approximately 1500° C. and approximately 1600° C. for a time between approximately 3 minutes and approximately 35 minutes; subsequent anodization may be performed by immersing the slug in an electrolyte at a temperature between approximately 15° C. and approximately 30° C. and then applying a voltage across the slug, the voltage being between approximately 175 Volts and approximately 375 Volts; subsequent heat treating may be performed at a temperature between approximately 400° C. and approximately 460° C. for a time between approximately 50 minutes and approximately 65 minutes. Following heat treating, the anode is reformed by a second anodization.