Patent ID: 7851246

Claim:
A method of making a semiconductor device, comprising: providing a semiconductor wafer containing a plurality of semiconductor die each having an optically active region; forming a passivation layer over an entire surface of the semiconductor wafer, the passivation layer having a clear portion for passage of light to the optically active region of the semiconductor die; mounting a glass wafer over an entire surface of the passivation layer; singulating the semiconductor wafer into individual semiconductor die each with a portion of the glass wafer and clear portion of the passivation layer; mounting the semiconductor die to a carrier with separation between the semiconductor die; depositing encapsulant over the carrier within the separation to form an expansion region around a periphery of the semiconductor die; forming a first via through the expansion region, glass wafer, and passivation layer; forming a second via through the glass wafer and passivation layer to a contact pad on the semiconductor die; and filling the first and second vias with conductive material.