An optical module includes a carrier, a light source disposed on an upper side of the carrier, an optical sensor disposed on the upper side of the carrier, and a housing disposed on the upper side of the carrier over the light source and the optical sensor. The housing defines a first aperture exposing at least a portion of the light source and a second aperture exposing at least a portion of the optical sensor. An outer sidewall of the housing includes at least one singulation portion adjacent to the upper side of the carrier and perpendicular to the upper side of the carrier.