Patent ID: 9543282
Date: 2017-01-10
CPC Classifications: H01L

Claim:
1. A proximity sensor comprising: a first substrate having a first surface, a pad located on the first surface of the substrate; a processor die having a pad, the processor die coupled to the first surface of the first substrate; conductive connectors coupling the pad of the first substrate to the pad of the processor die; encapsulation material around portions of the processor die; a second substrate located over the processor die; a third substrate located over the processor die; a light-emitting diode die secured to a surface of the second substrate; a light-receiving diode die secured to a surface of the third substrate; a cap located around side surfaces of the light-emitting diode die and the light-receiving diode die, the cap having sidewalls and an innerwall, the innerwall optically separating the light-emitting diode die from the light-receiving diode die; and adhesive material coupled to the innerwall of the cap and the sidewalls of the cap, the adhesive material coupling the innerwall of the cap to the encapsulation material between the first and second substrates and coupling the sidewalls of the cap to the first surface of the first substrate.