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:
Feb. 13, 1979
Filed:
Aug. 05, 1977
Applicant:
Inventor:
Jean-Georges Michel, Neuchatel, CH;
Assignee:
Ebauches S.A., Neuchatel, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310353 ; 310367 ; 310368 ;
Abstract
Piezoelectric microresonators with suspension arms, oscillating according to a vibration resulting from the superposition of a principal extensional mode of oscillation, of a first shear coupled mode of oscillation and of a second extensional coupled mode of oscillation. The suspension arms are attached to the active part of the resonator in a place which is the intersection of a nodal plane of the vibration resulting of the superposition of the principal mode and of the first coupled mode of oscillation. The other end of the arms is fixed on a stiff support in a location which coincide with a node of their vibration.