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:
Apr. 19, 2011
Filed:
Oct. 29, 2008
Hong Wang, Xi'an, CN;
Huanfu Zhou, Xi'an, CN;
Xi Yao, Xi'an, CN;
Ruey-tzeng Chang, Kaohsiung, TW;
Huey-ru Chen, Kaohsiung, TW;
Chung-kai Wen, Taipei Hsien, TW;
Hong Wang, Xi'an, CN;
Huanfu Zhou, Xi'an, CN;
Xi Yao, Xi'an, CN;
Ruey-Tzeng Chang, Kaohsiung, TW;
Huey-Ru Chen, Kaohsiung, TW;
Chung-Kai Wen, Taipei Hsien, TW;
Walsin Technology Corporation, Taipei, TW;
Abstract
A method for manufacturing microwave dielectric ceramics has the steps of: mixing multiple A-metal compounds and sintering multiple A-metal compounds between 1350˜1450° C. for 2˜4 hr to make a first component Ba(NbMn)O; mixing and sintering multiple B-metal compounds to make a second component BaNbO; and mixing the first component Ba(NbMn)O, the second component BaNbOand at least one sintering aid to make a third component (1−x)Ba(NbMn)O-xBaNbO; wherein x, y, z and k are molar fractions and 0≦x<1, 0<y≦0.3, 0≦z≦0.3, 0≦k≦0.1; and the at least one sintering aid is 0.3˜3 wt %. The microwave dielectric ceramics of (1−x)Ba(NbMn)O-xBaNbOhave superior microwave properties, low sintering temperature, simple chemical composition and manufacturing requirements applicable to low temperature co-sintered ceramic systems so no re-tooling is required.