Patent ID: 9236522
Filing Date: 2016-01-12
CPC Classification: G01J,H01L

Claim Text:
1. A semiconductor device, comprising: a substrate having an upper surface; a cap wafer including a support structure supported by the substrate and a cap layer extending from the support structure and spaced vertically apart from the substrate, the cap layer including a lower surface and an opposite upper surface; an absorber extending from the upper surface of the substrate and located between the substrate and the cap layer; and a lens layer supported by the cap layer, the lens layer including a plurality of grooves and an opening located over the absorber and vertically spaced apart from the absorber by a cavity, the cavity is defined between the upper surface of the substrate and the lower surface of the cap layer, wherein the lens layer is located generally above the opposite upper surface of the cap layer, and wherein a portion of the cap layer extends within the opening.