Patent ID: 8143608

Claim:
An optical proximity sensor, comprising: an infrared light emitter mounted atop a first substrate; a light detector mounted atop a second substrate, and an integrated circuit mounted atop a third substrate and encapsulated by an overmolding material, the integrated circuit comprising light emitter driving and light detecting circuits, the third substrate further comprising at least first and second sets of wire bond pads electrically connected to the integrated circuit and not covered by the overmolding material; wherein the first and second substrates are mounted atop the overmolding compound, the light emitter is electrically connected to the light emitter driving circuit through the first set of wire bond pads, the light detector is electrically connected to the light detecting circuit through the second set of wire bond pads, a first molded infrared light pass component is disposed over and covers the light emitter, a second molded infrared light pass component is disposed over and covers the light detector, and a molded infrared light cut component is disposed between and over portions of the third substrate and the first and second infrared light pass components.