Patent 10165954 was granted and assigned to Salutron, Inc. on January, 2019 by the United States Patent and Trademark Office.
An integrated sensor module includes one or more packaged light source semiconductor devices and one or more packaged light detector semiconductor devices mounted to a top surface of a substrate. A pre-molded cover structure includes a portion molded from an opaque molding compound and a further portion molded from a light transmissive molding compound. For each of the packaged light source and light detector semiconductor devices, the pre-molded cover structure includes a pre-molded cavity covered by a window formed of the light transmissive molding compound. The pre-molded cover structure is attached to the substrate such that each of the packaged light source and light detector semiconductor devices fits within a respective cavity, and such that a barrier formed of the opaque molding compound is positioned between each packaged light source semiconductor device and light detector semiconductor device. The module can also include additional sensors and/or electrodes for use by sensors.