Alumina insulation for coating implantable components and other microminiature devices

  • US 6,043,437 A
  • Filed: 12/19/1997
  • Issued: 03/28/2000
  • Est. Priority Date: 12/20/1996
  • Status: Expired due to Term
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First Claim
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1. A biocompatible, insulative coating applied to a component, said insulative coating comprising a layer of alumina, zirconia, magnesium oxide, or alloys of alumina, zirconia or magnesium oxide, deposited on said component so as to form an insulative and protective coating that is less than about 25 microns thick, said coating, as applied, exhibiting insulative properties that maintain electrical leakage through said coating to less than about 1 μ

  • a/cm2, whereby said component with said coating applied thereto is implantable;

    wherein said component comprises a hybrid circuit having a substrate and at least one electrical component mounted on said substrate.

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