Patent ID: 9130080
Filing Date: 2015-09-08
Classification: H01L

Abstract:
1. An encapsulation of backside illumination photosensitive device, comprising: a circuit sub-mount; a backside illumination photosensitive device, comprising: an interconnection layer located on the circuit sub-mount; a photosensitive device array, wherein the interconnection layer is located between the photosensitive device array and the circuit sub-mount; a plurality of conductive terminals located between the interconnection layer and the circuit sub-mount to electrically connect the interconnection layer and the circuit sub-mount; a heat dissipation structure located under the interconnection layer, wherein the heat dissipation structure and the photosensitive device array are respectively located at two opposite sides of the interconnection layer; and a circuit board, wherein the circuit sub-mount is disposed on the circuit board, and the circuit sub-mount further comprises a plurality of conductive through holes disposed corresponding to the conductive terminals and a plurality of conductive structures located in the conductive through holes, each of the conductive terminals is electrically connected to one of the conductive structures, and the interconnection layer is electrically connected to the circuit board through the conductive terminals and the conductive structures, wherein the interconnection layer includes a dielectric layer, a plurality of metal layers and a plurality of inter-layered via plugs, wherein the metal layers and the inter-layered via plugs are generally made of a light-shielding conductive material.