Title: High k dielectric composition with fine crystal particle size
Application Number: 01137766 Application Date: 1992.03.05
Publication Number: 1392570 Publication Date: 2003.01.22
Approval Pub. Date: Granted Pub. Date: 2005.12.07
International Classifi-cation: H01B3/12,H01B3/00,H01G4/12,H01G4/30,C04B35/468
Applicant(s) Name: I.E. Du Pont De Nemours and Co. Address:
Inventor(s) Name: S.A. Bruno
Attorney & Agent: guo anxun
Abstract:
     A composite contains modified barium titanate particles and additive of Ca, Ti and Mn mixture. The modified barium titanate particles contains Zr, Zn and Nb distributed uniformly in all of the particles. The said composite can be produced into a dielectric layer with Curie temperature lower than 25 deg.C, dielectric constant being at least 10000 and size of crystal grains being 5 micrometer or even smaller, and suitable for multilayer electronic elements, such as circuits and condensers.
Time: 8