Patents by Inventor Rodolfo E. Chang

Rodolfo E. Chang 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).

  • High-power acoustic device with improved performance
    Patent number: 10141245
    Abstract: The present disclosure relates to a high-power acoustic device with improved performance. The disclosed acoustic device includes a substrate, a die-attach material, and an acoustic die. The substrate includes a substrate body and a die pad on a top surface of the substrate body. The die-attach material is a sintered material and applied over the die pad. The acoustic die is coupled to the die pad via the die-attach material. Herein, the acoustic die includes a die body and a metallization structure, which is sandwiched between the die body and the die-attach material.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: November 27, 2018
    Assignee: Qorvo US, Inc.
    Inventors: Tarak A. Railkar, Ian Y. Yee, Jeffrey D. Galipeau, Jason Wu, Rodolfo E. Chang
  • HIGH-POWER ACOUSTIC DEVICE WITH IMPROVED PERFORMANCE
    Publication number: 20180061744
    Abstract: The present disclosure relates to a high-power acoustic device with improved performance. The disclosed acoustic device includes a substrate, a die-attach material, and an acoustic die. The substrate includes a substrate body and a die pad on a top surface of the substrate body. The die-attach material is a sintered material and applied over the die pad. The acoustic die is coupled to the die pad via the die-attach material. Herein, the acoustic die includes a die body and a metallization structure, which is sandwiched between the die body and the die-attach material.
    Type: Application
    Filed: August 24, 2017
    Publication date: March 1, 2018
    Inventors: Tarak A. Railkar, Ian Y. Yee, Jeffrey D. Galipeau, Jason Wu, Rodolfo E. Chang