SEMICONDUCTOR OPTICAL SENSOR

摘要

A semiconductor optical sensor includes a plurality of sensing units and to senses an incident optical signal to generate an electrical signal. One of the sensing units includes a substrate, an optical sensing element, a lens and an optical shielding element. The optical sensing element, whose material is different from that of the substrate, converts the incident optical signal into the electrical signal. The lens, whose material includes the same as that of the substrate, guides the incident optical signal to the optical sensing element by changing the propagation path of the incident optical signal. The optical shielding element, which surrounds the optical sensing element, alters the propagation path or propagation distance of the incident optical signal after the incident optical signal passes through the lens such that the incident optical signal will not reach an optical sensing element of an adjacent sensing unit.

主权项

1. A semiconductor optical sensor comprising a plurality of sensing units, the semiconductor optical sensor converting an incident optical signal into an electric signal and one of the sensing units comprising:
a substrate; an optical sensing element using a different material with that of the substrate and converting the incident optical signal into the electric signal; a lens including a same material with that of the substrate and changing a propagation path of the incident optical signal to guide the incident optical signal to the optical sensing element; and an optical shielding element surrounding the optical sensing element and changing the propagation path of the incident optical signal or a propagation distance of the incident optical signal such that the incident optical signal does not further propagate to another sensing unit adjacent to the sensing unit impinged by the incident optical signal.