Method of manufacturing piezoelectric resonator components
Patent 4445256 Issued on May 1, 1984. Estimated Expiration Date: 
February 3, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 3, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3634787 3766616 Process for manufacturing piezoelectric resonators and resonators resulting from such process Temperature compensation by positioning of plural piezoelectric vibrators in an electronic wristwatch Patent #: 4219754 InventorsAssigneeApplicationNo. 06/345283 filed on 02/03/1982US Classes:29/25.35, PIEZOELECTRIC DEVICE MAKING174/50.54, With mounting means for a device within envelope174/535, Details of mount310/320, Piezoelectric slab having different resonant frequencies at different areas310/340, Encapsulated or coated310/348With mounting or support meansExaminersPrimary: Hall, Carl E.Attorney, Agent or FirmInternational ClassesH03H 9/05 (20060101)H03H 3/04 (20060101) H03H 3/00 (20060101) H03H 3/02 (20060101) H03H 9/10 (20060101) Foreign Application Priority Data1979-07-05 CHAbstractAn electronic component comprising at least one piezoelectric resonator and a process for mass production thereof include the superpositioning of n (nࣙ1) layers having one or several cut outs defining m (mࣙ1) resonating elements. Such layers are separated by n-1 intermediate layers in which are provided openings forming frames for the resonating elements. Two terminal layers providing covers in which are arranged blind cavities corresponding to the frames cover the assembly. The resonating elements are provided with electrodes and the layers are fixed to one another by welding together of metallization layers. The component may be used as an individual resonator or as a multiple channel filter. | |
