Patent ID: 9613830
Date: 2017-04-04
CPC Classifications: H01L

Claim:
1. A method of making a semiconductor device, comprising: providing a temporary carrier comprising a semiconductor die mounting site; forming a first portion of a conductive interconnect over the temporary carrier in a periphery of the semiconductor die mounting site; forming an etch stop layer over the first portion of the conductive interconnect; forming a second portion of the conductive interconnect over the etch stop layer and over the first portion of the conductive interconnect; mounting a semiconductor die at the semiconductor die mounting site; encapsulating the conductive interconnect and semiconductor die with a mold compound; exposing a first end of the conductive interconnect on the second portion of the conductive interconnect; forming a build-up interconnect structure to connect semiconductor die and the first ends of the conductive interconnect; removing the temporary carrier to expose a second end of the conductive interconnect on the second portion of the conductive interconnect opposite the first end of the conductive interconnect; and etching the first portion of the conductive interconnect to expose the etch stop layer.