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. 20, 2009
Filed:
May. 03, 2005
Tameharu Ohta, Takahama, JP;
Tameharu Ohta, Takahama, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
An angular rate sensor includes a sensor chip having an oscillator vibrating at a predetermined frequency and detecting an angular velocity applied to this oscillator around a predetermined rotation axis. A circuit chip, laminated with the sensor chip, has a circuit formed on a surface thereof to detect the angular velocity based on a signal obtained from the sensor chip. The sensor chip and the circuit chip are bonded with an adhesive film. A resonance frequency of the sensor chip is smaller than (½)times a driving frequency of the oscillator in a condition that adjustment is applied to at least one of configuration or elastic coefficient of the adhesive film.