Patent ID: 7495325
Filing Date: 2009-02-24
Classification: H01L

Abstract:
1. A low-profile optical sensor package, comprising: a leadframe having a die pad and interconnect leads electrically isolated from and surrounding the die pad, the die pad having an opening centrally located with respect to a surface area of the die pad; a semiconductor die mounted to the die pad, the semiconductor die having an optically active surface facing the die pad and aligned to the opening; a barrier layer disposed around the opening and connecting the semiconductor die and die pad; an encapsulant covering a portion of the semiconductor die and leadframe, wherein the barrier layer isolates the encapsulant from the optically active surface of the semiconductor die; and a light-transmitting cover disposed across the opening in the die pad; wherein the low-profile optical sensor package has a thickness of less than 0.7 millimeters.