Embedded piezoelectric resonator

Details Embedded piezoelectric resonator Embedded piezoelectric resonator

1998-08-03

2000-07-25

Ramirez, Nestor

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310351, 310348, 310345, H01L 4104

Patent

active

060939974

ABSTRACT:
A piezoelectric resonator (12) is embedded within an electrically insulating substrate assembly (36), such as a multilayer printed circuit board. Electrical conductors (22,24) extend from electrodes of the resonator (12) through holes (32) in upper and lower layers (26,29) of the substrate assembly (36) and connect to electrical traces (34). The lower layer (29) has a pocket which forms a cavity (38) within the substrate assembly (36) adapted to contain the piezoelectric resonator (12). The conductors (22,24) support the resonator (12) such that the resonator (12) does not contact the assembly (36). As the resonator is substantially larger than associated electrical components, embedding it within a substrate eliminates the size penalty that is normally required to mount a large piezoelectric resonator.

REFERENCES:
patent: 3566164 (1971-02-01), Boillat et al.
patent: 5030875 (1991-07-01), Knecht
patent: 5250870 (1993-10-01), Fenlon et al.
patent: 5747916 (1998-05-01), Sugimoto et al.
patent: 5880553 (1999-03-01), Okeshi et al.

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