Title: Ultrathin temperature stable type multilayer ceramic capacitor dielectric material and its sintering process
Application Number: 03147880 Application Date: 2003.06.27
Publication Number: 1461023 Publication Date: 2003.12.10
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C04B35/468,C04B35/64,H01G4/12
Applicant(s) Name: Tsinhua Univ. Address: 100084
Inventor(s) Name: Wang Xiaohui, Chen Renzheng
Attorney & Agent:
Abstract:
     The present invention discloses a superfine temp.-stabilized multi-layer ceramic capacitor dielectric material and its sintering process. The material contains main component BaTiO3 and secondary additive CaO, CaTiO3, BaO, SiO2, SrO, MnO2, MgO, Co2O3, Co3O4, Fe2O3 and Y2O3 and one kind of more than one kind of rare earth oxide. Said invention adopts "two-stage" type microcrystalline control technique sintering process and utilizes the above-mentioned materials to obtain the temp.-stabilized type (including XTR and X5R) MLCC antireduction dielectric material with excellent performance. The invention is suitable for producing multi-layer ceramic capacitor with large capacity and superthin dielectric layer.
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