Patent ID: 9117810
Filing Date: 2015-08-25
Classification: H01L,Y10T

Abstract:
1. A method, comprising: etching a first depth into a first face of a conductive substrate to form a plurality of first cavities, the first depth being less than an initial thickness of the conductive substrate; etching a plurality of second cavities a second depth into a second face of the conductive substrate, each of the plurality of second cavities being offset from the first cavities such that webs are formed between adjacent first and second cavities, the second depth being less than the initial thickness of the conductive substrate; fixing semiconductor dice to the first face of the conductive substrate between two adjacent first cavities, respectively; electrically coupling each of the semiconductor die to bond pads on the first face of the conductive substrate; forming a molding compound layer over the first face of the conductive substrate that covers the plurality of semiconductor dice; and etching the second face of the conductive substrate between the plurality of second cavities and exposing the molding compound layer.