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:
Jun. 04, 2019
Filed:
May. 23, 2018
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;
Seiji Fujita, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Nagaokakyo-Shi, Kyoto-Fu, JP;
Abstract
A multilayer ceramic substrate that includes a laminated structure including a surface layer portion located on a surface of the laminated structure and an inner layer portion located on the inner side of the laminated structure, the surface layer portion including a first layer adjacent to the inner layer portion, the inner layer portion including a second layer adjacent to the first layer. The thermal expansion coefficient of the first layer is lower than the thermal expansion coefficient of the second layer, a first glass contained in the first layer and a second glass contained in the second layer each contain 40% or more by weight MO (where M represents at least one selected from the group consisting of Ca, Mg, Sr, and Ba), and the difference in softening points between the first glass and the second glass is 60° C. or lower.