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Medical electrode including an iridium oxide surface and methods of fabrication

  • US 8,996,129 B2
  • Filed: 01/31/2007
  • Issued: 03/31/2015
  • Est. Priority Date: 01/31/2007
  • Status: Active Grant
First Claim
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1. A method for fabricating an implantable medical electrode, the method comprising:

  • mechanically roughening a surface of a substrate; and

    applying a film of iridium oxide over the roughened surface using direct current magnetron sputtering in a sputtering atmosphere comprising oxygen and argon, wherein a sputtering deposition rate is between approximately 100 angstroms/minute and approximately 2500 angstroms/minute, and wherein the film has a microstructure exhibiting a columnar growth pattern.

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