Patent ID: 7663095
Filing Date: 2010-02-16
Classification: G01J,H01L

Abstract:
1. A photodetector comprising: a photodetector die mounted on a substrate; an infrared filter positioned over and spaced away a distance from said photodetector die, said infrared filter blocking light in an infrared region of the optical spectrum while allowing light in a visible region of the optical spectrum to reach said photodetector die, said infrared filter comprising a layer of material having a light-receiving top surface and a bottom surface opposite said top surface and facing said photodetector die; an encapsulating layer surrounding said photodetector die and said substrate, said infrared filter being completely embedded in said encapsulating layer, said encapsulating layer being transparent to light in said visible region and to light in said infrared region, all of said top surface and all of said bottom surface of said infrared filter are in contact with and surrounded by said encapsulating layer, and at least a portion of said encapsulating layer is between said photodetector die and said infrared filters; at least one spacer positioned between said substrate and said infrared filter to provide said distance between said infrared filter and said photodetector die; and at least one opening in said infrared filter to allow said at least a portion of said encapsulating layer to flow therethrough to said photodetector die during molding of said photodetector.