Patent ID: 9142695
Filing Date: 2015-09-22
Classification: G01N,H01L

Abstract:
1. A packaged sensor assembly, comprising: a first substrate that comprises opposing front and back surfaces; one or more detectors formed on or in the front surface; a plurality of contact pads formed at the front surface which are electrically coupled to the one or more detectors; a second substrate mounted to the front surface to define a cavity between the second substrate and the front surface, wherein the second substrate includes a first opening extending from the cavity through the second substrate; a trench formed into the front surface of the first substrate extending toward but not reaching the back surface; and a plurality of conductive traces each extending from one of the contact pads and into the trench; an insulation material covering upper surfaces of the plurality of conductive traces except for contact portions of the upper surfaces of the conductive traces in the trench; a third substrate having one or more circuit layers and a plurality of contact pads electrically coupled to the one or more circuit layers; electrical connectors each electrically connecting one of the contact portions of one of the conductive traces and one of the contact pads of the third substrate.