Integrated quartz MEMS tuning fork resonator/oscillator
First Claim
1. A piezoelectric quartz tuning fork resonator formed of a quartz plate with a pair of tines projecting from of a mounting portion of said quartz plate, each of the pair of times having top and bottom major surfaces, each of the pair of tines having a middle electrode and two outer electrodes disposed on the top and bottom major surfaces of each of said pair of tines, the pairs of tunes also having side surfaces disposed essentially orthogonally to the top and bottom major surfaces thereof, the side surfaces of said tines having no electrodes disposed thereon, the electrodes on the top and bottom major surfaces of the pair of tines being interconnected such that the outer electrode on the top major surface of a first one of said pair of tines is connected to the outer electrode on the bottom major surface of said first one of said pair of tines by means of a first conductive via penetrating said quartz plate, said first conductive via also being interconnected with the middle electrodes on the top and bottom major surfaces of a second one of said pair of tines, the electrodes on the top and bottom major surfaces of the pair of tines being further interconnected such that the outer electrode on the top major surface of the second one of said pair of tines is connected to the outer electrode on the bottom major surface of said second one of said pair of tines by means of a second conductive via penetrating said quartz plate, said second conductive via also being interconnected with the middle electrodes on the top and bottom major surfaces of the first one of said pair of tines.
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Accused Products
Abstract
A piezoelectric quartz tuning fork resonator having a pair of tines formed from a common quartz plate, with a middle electrode and two outer electrodes being disposed at or on top and bottom surfaces of each of the pair of tines and interconnected such that the outer electrodes at or on the top and bottom surfaces of a first one of the pair of tines are connected in common with the middle electrodes on the top and bottom surfaces of a second one of the pair of tines and further interconnected such that the outer electrodes at or on the top and bottom surfaces of the second one of the pair of tines are connected in common with the middle electrodes on the top and bottom surfaces of the first one of the pair of tines.
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Citations
9 Claims
- 1. A piezoelectric quartz tuning fork resonator formed of a quartz plate with a pair of tines projecting from of a mounting portion of said quartz plate, each of the pair of times having top and bottom major surfaces, each of the pair of tines having a middle electrode and two outer electrodes disposed on the top and bottom major surfaces of each of said pair of tines, the pairs of tunes also having side surfaces disposed essentially orthogonally to the top and bottom major surfaces thereof, the side surfaces of said tines having no electrodes disposed thereon, the electrodes on the top and bottom major surfaces of the pair of tines being interconnected such that the outer electrode on the top major surface of a first one of said pair of tines is connected to the outer electrode on the bottom major surface of said first one of said pair of tines by means of a first conductive via penetrating said quartz plate, said first conductive via also being interconnected with the middle electrodes on the top and bottom major surfaces of a second one of said pair of tines, the electrodes on the top and bottom major surfaces of the pair of tines being further interconnected such that the outer electrode on the top major surface of the second one of said pair of tines is connected to the outer electrode on the bottom major surface of said second one of said pair of tines by means of a second conductive via penetrating said quartz plate, said second conductive via also being interconnected with the middle electrodes on the top and bottom major surfaces of the first one of said pair of tines.
Specification