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. 21, 2009
Filed:
Apr. 16, 2007
Hideto Naruse, Ebina, JP;
Hideto Naruse, Ebina, JP;
Epson Toyocom Corporation, Tokyo, JP;
Abstract
A piezoelectric device includes: a package including a first recessed part provided on a first surface of the package, a second recessed part provided on a second surface of the package, and a penetrating part passing partially from the first recessed part through the second recessed part; a piezoelectric element housed in the first recessed part; a lid disposed on the upper side of the first recessed part; an IC chip disposed and fixed in the second recessed part of the package so as to block a part of the penetrating part; and a sealing part provided to the second recessed part. The IC chip and the sealing part close up the penetrating part and the lid seals the first recessed part air-tightly. A piezoelectric device is provided. The piezoelectric device realizes thickness reduction thereof without undergoing warpage and breakage of an IC chip or a package thereof.