Patent ID: 8686550

Claim:
A method for forming a packaged semiconductor device assembly, the method comprising: providing a lead frame comprising a plurality of leads and a device flag; affixing a semiconductor device die to the device flag, wherein the semiconductor device die comprises a first and second major surface, the first major surface is affixed to the device flag, and the second major surface provides a surface embodied within the packaged semiconductor device assembly, wherein the surface comprises a plurality of electrical contacts; forming an encapsulated region over a first portion of the surface using an encapsulant, wherein said forming the encapsulated region provides a cavity region over a second portion of the surface, a first subset of the plurality of electrical contacts is located on the second portion of the surface, and an interface between the encapsulant and the surface along an entire border of the cavity region comprises no electrical contacts; affixing a first semiconductor device on a portion of the second portion of the surface; and electrically coupling the first semiconductor device to one or more of the first subset of electrical contacts; and electrically coupling the semiconductor device die to one or more of the plurality of leads, wherein said electrically coupling comprises coupling one or more of a second subset of the plurality of the electrical contacts to corresponding leads, and said forming the encapsulated region comprises encapsulating the lead frame, electrical contacts of the semiconductor device die coupled to the lead frame, and a portion of the semiconductor device die excluding the second portion of the surface.