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:
Jan. 26, 2021
Filed:
Mar. 13, 2018
Guangdong Fenghua Advanced Technology Holding Co., Ltd., Guangdong, CN;
Zhe Song, Guangdong, CN;
Yun Liu, Guangdong, CN;
Kun Huang, Guangdong, CN;
Luwei Fu, Guangdong, CN;
Zhenxiao Fu, Guangdong, CN;
Joanna Chu, Guangdong, CN;
Lasse Noren, Guangdong, CN;
Tao Chen, Guangdong, CN;
Shiwo Ta, Guangdong, CN;
GUANGDONG FENGHUA ADVANCED TECHNOLOGY HOLDING CO., LTD., Zhaoqing, CN;
Abstract
The present invention relates to a boroaluminosilicate mineral material, a low temperature co-fired ceramic composite material, a low temperature co-fired ceramic, a composite substrate and preparation methods thereof. A boroaluminosilicate mineral material for a low temperature co-fired ceramic, the boroaluminosilicate mineral material comprises the following components expressed in mass percentages of the following oxides: 0.41%-1.15% of Na2O, 14.15%-23.67% of K2O, 1.17%-4.10% of CaO, 0-2.56% of Al2O3, 13.19%-20.00% of BO, and 53.47%-67.17% of SiO. The aforementioned boroaluminosilicate mineral material is chemically stable; a low temperature co-fired ceramic prepared from it not only has excellent dielectric properties, but also has a low sintering temperature, a low thermal expansion coefficient, and high insulation resistance; it is also well-matched with the LTCC process and can be widely used in the field of LTCC package substrates.