Patent ID: 9520364
Filing Date: 2016-12-13
CPC Classification: H01L

Claim Text:
1. A method of making a semiconductor device, comprising: providing a plurality of semiconductor die within a wafer, wherein each semiconductor die comprises an active surface and a backside opposite the active surface; forming a build-up interconnect structure that extends over the active surface of each of the plurality of semiconductor die within the wafer; forming a unique identifying mark for each of the plurality of semiconductor die as part of a layer within the build-up interconnect structure while simultaneously forming the layer of the build-up interconnect structure, wherein the layer of the build-up interconnect structure comprises both the unique identifying marks for each of the plurality of semiconductor die and functionality for the semiconductor device, wherein each unique identifying mark conveys a unique identity of its respective semiconductor die; and singulating the plurality of semiconductor die into a plurality of semiconductor devices.