Patents by Inventor Gengjiang WU

Gengjiang WU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Bulk acoustic wave resonator and bulk acoustic wave filter
    Patent number: 11411548
    Abstract: A bulk acoustic wave resonator and a bulk acoustic wave filter are provided. The bulk acoustic wave resonator includes: a piezoelectric layer; an electrode layer located at both sides of the piezoelectric layer; and an electrode edge frame structure located at an edge of the electrode layer and located at one side of the electrode layer away from the piezoelectric layer. The electrode edge frame structure includes a laminated structure, the laminated structure includes an edge convex layer and a passivation layer laminated in a longitudinal direction, and the passivation layer is located at one side of the edge convex layer away from the piezoelectric layer; in a transverse direction, the laminated structure includes a cantilever member and a convex structure connected with each other; a cantilever gap is arranged between the cantilever member and at least one of the piezoelectric layer and the electrode layer.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: August 9, 2022
    Assignee: Newsonic Technologies
    Inventor: Gengjiang Wu
  • BULK ACOUSTIC WAVE RESONATOR AND BULK ACOUSTIC WAVE FILTER
    Publication number: 20220131520
    Abstract: A bulk acoustic wave resonator and a bulk acoustic wave filter are provided. The bulk acoustic wave resonator includes: a piezoelectric layer; an electrode layer located at both sides of the piezoelectric layer; and an electrode edge frame structure located at an edge of the electrode layer and located at one side of the electrode layer away from the piezoelectric layer. The electrode edge frame structure includes a laminated structure, the laminated structure includes an edge convex layer and a passivation layer laminated in a longitudinal direction, and the passivation layer is located at one side of the edge convex layer away from the piezoelectric layer; in a transverse direction, the laminated structure includes a cantilever member and a convex structure connected with each other; a cantilever gap is arranged between the cantilever member and at least one of the piezoelectric layer and the electrode layer.
    Type: Application
    Filed: January 11, 2022
    Publication date: April 28, 2022
    Inventor: Gengjiang WU