The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 2018
Filed:
Dec. 01, 2015
National Taipei University of Technology, Taipei, TW;
Sea-Fue Wang, Taipei, TW;
Chun-Wei Chang, Taipei, TW;
Jue-Wei Weng, Taipei, TW;
Jian-Hua Li, Taipei, TW;
Yuan-Cheng Lai, Taipei, TW;
NATIONAL TAIPEI UNIVERSITY OF TECHNOLOGY, Taipei, TW;
Abstract
A ceramic capacitor dielectric material includes BaTiO, BaZrO, SrTiO, MgCO, SiO, and at least one compound selected from transition element and rare earth element. The amount of the BaTiOin the ceramic capacitor dielectric material is 40-80 mol %; the amount of the BaZrOis 20-40 mol %; and the amount of the SrTiOis smaller than or equal to 20 mol %. The permittivity of the ceramic capacitor dielectric material is larger than 350, and the dielectric loss is lower than 0.5%. Moreover, the resistivity can reach 10Ω-cm under room temperature, and further reach 10Ω-cm at 125° C. Besides that, the performance of the capacitance change rate of the ceramic capacitor dielectric material under DC bias is excellent, thus the ceramic capacitor dielectric material can fulfill the X7T dielectric properties of EIA.