Patent ID: 9202770
Filing Date: 2015-12-01
Classification: B29B,B29C,H01L

Abstract:
1. A method for assembling a packaged semiconductor device, the method comprising: (a) positioning a partially-assembled packaged semiconductor device comprising an integrated circuit (IC) die within a mold cavity; (b) positioning a molding compound pellet within a pot, wherein the molding compound pellet comprises a first molding compound and a second molding compound different from the first molding compound; (c) pushing the second molding compound into a second volume of the mold cavity disposed on a second side of the IC die; and (d) pushing the first molding compound into a first volume of the mold cavity disposed on at least a first portion of a first side of the IC die, different from the second side, and after step (c) and before step (d), pushing a mixture of the first and second molding compounds from the first and second regions into a third volume of the mold cavity, wherein the molding compound pellet comprises (i) a first region comprising the first molding compound and (ii) a second region comprising the second molding compound and a recess, wherein the first region is located within the recess of the second region.