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High K dielectric compositions with fine grain size

  • US 5,155,072 A
  • Filed: 06/29/1990
  • Issued: 10/13/1992
  • Est. Priority Date: 06/29/1990
  • Status: Expired due to Fees
First Claim
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1. A composition for forming a densified dielectric body having a Curie Temperature below 25°

  • C., a dielectric constant of at least 10,000 and grain size of 5 microns or less, the composition compirising;

    (a) finely divided particles of modified barium titanate; and

    (b) an admixture of (1) oxides of calcium, and titanium, precursors thereof, or calcium titanate and (2) manganese oxide, precursors thereof, barium manganate or calcium manganate;

    the admixture comprising in wt. % of the composition;

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