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:
Jul. 25, 2000
Filed:
Jan. 25, 1999
Muneyuki Daidai, Toyama, JP;
Toshiaki Sugimura, Tonami, JP;
Abstract
A surface mounting type piezoelectric component includes an insulating substrate, an external electrode disposed on the insulating substrate, and a piezoelectric element including an electrode. The piezoelectric element is fixed to the insulating substrate and the electrode of the piezoelectric element is connected to the external electrode. A metal cap is fixed to the insulating substrate via an adhesive agent and covers the piezoelectric element. A glass transition temperature of the adhesive agent in a cured state is about 120 degrees centigrade or more. A difference between absolute values of a thermal-expansion-coefficient of the metal cap and of the insulating substrate is about 8 ppm/degrees centigrade or less.