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:
May. 08, 2001
Filed:
Mar. 15, 1999
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 4/108 ;
U.S. Cl.
CPC ...
H01L 4/108 ;
Abstract
A monolithic piezoelectric transformer includes a piezoelectric substrate and input electrodes which include internal electrodes disposed in the piezoelectric substrate alternately and between piezoelectric ceramic layers and external electrodes provided on the corresponding upper and lower surfaces of the piezoelectric substrate. The length of the external electrodes is about 50% of an overall length L of the piezoelectric substrate. The length of the internal electrodes is longer than approximately 50% of the overall length L.