Patents Examined by Niki H Ngyuen
  • Patent number: 11063083
    Abstract: A method for manufacturing light-shielded cameras includes forming a plurality of camera dies by dicing a camera wafer stack including (a) an image sensor wafer having a plurality of image sensors, (b) a cover glass bonded to the image sensor wafer, and (c) a lens wafer bonded to the cover glass and having a plurality of lenses, to form a plurality of camera dies. The method further includes, prior to the step of dicing, (i) from a first side of the image sensor wafer facing away from the cover glass and at least partly covered by an opaque layer, pre-cutting a sensor-cover wafer stack that includes the image sensor wafer and the cover glass, and (ii) depositing an opaque material in the pre-cuts. The method also includes, after the step of dicing, applying an opaque coating to second-side surfaces, of the camera dies, formed by the step of dicing.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: July 13, 2021
    Assignee: OmniVision Technologies, Inc.
    Inventors: Teng-Sheng Chen, Wei-Ping Chen, Ying Chung, Chen-Yu Hung