Kevin M Gaffney

Address:

7444 Shenandoah Ln N, Osseo, MN 55311

VIN:

4T1BB46K37U007297

Make:

TOYOTA

Model:

CAMRY

Year:

2007

US Patent:

7837743, Nov 23, 2010

Filed:

Sep 24, 2007

Appl. No.:

11/860221

Inventors:

Kevin M. Gaffney - Dayton MN, US
Kurt J. Casby - Grant MN, US
John D. Norton - New Brighton MN, US
Angela M Rodgers - Minneapolis MN, US
Karen J Hulting - Plymouth MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

H01G 9/04
H01G 9/145

US Classification:

29 2503, 361528

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.