Optical sensor device manufacturing method

Abstract

A method of manufacturing optical sensor devices comprises: arranging a plurality of light-receiving elements and a plurality of light-emitting elements on a temporary substrate with predetermined intervals between each element; forming an opaque material on the temporary substrate to cover the plurality of light-receiving elements and the plurality of light-emitting elements; removing a portion of the opaque material and forming a circuit layer over the opaque material to electrically connect the plurality of light-emitting elements and the plurality of light-receiving elements; forming a plurality of contact pads on the circuit layer to establish an electrical connection with the circuit layer; performing a dicing process at predetermined positions to singulate each optical sensor device; and removing the temporary substrate.

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