Patents by Inventor Rafael Jose Guevara

Rafael Jose Guevara 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).

  • Publication number: 20230317662
    Abstract: An electronic device includes a substrate, a semiconductor die, and a molded package structure that encloses a portion of the semiconductor die and extends to a portion of the substrate. A sensor surface extends along a side of the semiconductor die, and conductive terminals extend outward from the side and have ends soldered to conductive features of the substrate. The side of the semiconductor die is spaced apart from the substrate and the conductive terminals forming a cage structure that laterally surrounds the sensor surface. The molded package structure has a cavity that extends between the sensor surface and the substrate, and the cavity extends in an interior of a cage structure formed by the conductive terminals.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 5, 2023
    Inventors: Rafael Jose Guevara, Laura May Antionette Dela Paz Clemente, Amin Sijelmassi, Kashyap Mohan
  • Publication number: 20230299031
    Abstract: A semiconductor die includes a substrate including a semiconductor surface including circuitry electrically connected to die bond pads that include a first die bond pad exposed by a passivation layer, a top dielectric layer over the passivation layer, and a metal layer electrically connected to the first die bond pad. A pillar is on the metal layer over the first die bond pad, and a solder cap is on a top side of the pillar. The solder cap includes an essentially vertical sidewall portion generally beginning at a top corner edge of the pillar.
    Type: Application
    Filed: March 15, 2022
    Publication date: September 21, 2023
    Inventor: Rafael Jose Guevara
  • Publication number: 20230137996
    Abstract: A semiconductor package includes a semiconductor die having a device side, a conductive layer coupled to the device side, a conductive pillar coupled to the conductive layer, the conductive pillar having an upper portion and a base portion, the upper portion having a wider diameter than the base portion and the conductive pillar either having a mushroom shape or having sloped sides on the base portion extending away from the upper portion to the conductive layer, a polyimide layer coupled to the conductive layer and surrounding the conductive pillar, a solder layer coupled to the conductive pillar, wherein the polyimide layer does not extend between a top surface of the conductive pillar and the solder layer, and a conductive terminal coupled to the solder layer and exposed to a surface of the semiconductor package, the device side of the semiconductor die facing the conductive terminal.
    Type: Application
    Filed: October 29, 2021
    Publication date: May 4, 2023
    Inventors: Christlyn Faith Arias, Rafael Jose Guevara