Patents Assigned to Micro Crystal SA
  • Small piezoelectric resonator
    Patent number: 11146239
    Abstract: The invention relates to a piezoelectric resonator, which comprises a base and at least two vibrating arms (3) extending from the base, at least two grooves (4a, 4b) being formed opposite each other on part of the length of the arms and on upper and lower faces of the arms. The depth of the groove on the upper face is less than 30% of the total thickness of each arm and the depth of the groove on the lower face is more than 50% of the total thickness of each arm, or reversely.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: October 12, 2021
    Assignee: Micro Crystal SA
    Inventors: Silvio Dalla Piazza, Felix Staub
  • SMALL PIEZOELECTRIC RESONATOR
    Publication number: 20190103854
    Abstract: The invention relates to a piezoelectric resonator, which comprises a base and at least two vibrating arms (3) extending from the base, at least two grooves (4a, 4b) being formed opposite each other on part of the length of the arms and on upper and lower faces of the arms. The depth of the groove on the upper face is less than 30% of the total thickness of each arm and the depth of the groove on the lower face is more than 50% of the total thickness of each arm, or reversely.
    Type: Application
    Filed: September 20, 2018
    Publication date: April 4, 2019
    Applicant: Micro Crystal SA
    Inventors: Silvio Dalla Piazza, Felix Staub