Patent ID: 9040352
Filing Date: 2015-05-26
Classification: B60C,H01L

Abstract:
1. A method comprising: providing a second semiconductor device embodied within a packaged semiconductor device assembly, wherein the second semiconductor device comprises a first and second major surface; forming an encapsulated region over the second major surface of the second semiconductor device using an encapsulant; forming a cavity region in the encapsulant over a first portion of the second major surface of the second semiconductor device using a film-assisted molding technique, wherein a mold used for the film-assisted molding technique defines a gel stop feature along a wall of the cavity region, the gel stop feature comprises a gel level set feature and a gel overflow reservoir feature, wherein the gel stop feature is configured to permit silicone gel rising to a level above the gel level set feature to flow over the gel level set feature into the gel overflow reservoir feature; the first portion of the second major surface of the second semiconductor device is exposed in the cavity region; and affixing a first semiconductor device on at least a portion of the first portion of the second major surface of the second semiconductor device, wherein the first semiconductor device is located entirely within the cavity region.