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:
Oct. 18, 2011
Filed:
Mar. 01, 2010
Tomoyuki Hasegawa, Saku, JP;
Takashi Nagatomo, Saku, JP;
Yoshinori Ide, Minami-Saku Gun, JP;
Tadashi Otagiri, Nagoya, JP;
Tomoyuki Hasegawa, Saku, JP;
Takashi Nagatomo, Saku, JP;
Yoshinori Ide, Minami-Saku Gun, JP;
Tadashi Otagiri, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Soshin Electric Co., Ltd., Saku-shi, JP;
Abstract
It is provided a ceramic multilayer substrate obtained by co-sintering a low dielectric constant layer made of an insulating material of a low dielectric constant and a high dielectric constant layer of a dielectric material of a high dielectric constant. The low dielectric constant layer includes a ceramic component of xBaO-yTiO-zZnO ('x', 'y' and “z” represent molar ratios, respectively, and satisfy the relationship: x+y+z=1; 0.09≦x≦0.20; 0.49≦y≦0.61; 0.19≦z≦0.42) and 1.0 to 5.0 weight parts of a glass component comprising boron oxide with respect to 100 weight parts of the ceramic component. The high dielectric layer is made of a barium titanate based dielectric material with CuO and BiOadded thereto.