Patent ID: 9748203
Date: 2017-08-29
CPC Classifications: H01L

Claim:
1. An integrated circuit packaging system comprising: a package carrier; a first integrated circuit mounted to the package carrier; an underfill between the package carrier and the first integrated circuit; a circuit interposer mounted above the first integrated circuit and connected to the package carrier, wherein the circuit interposer is an integrated passive device or an active device; a second integrated circuit mounted above the circuit interposer; a conductive pillar formed to the circuit interposer adjacent to the second integrated circuit; and an encapsulation formed on the package carrier and the second integrated circuit, a non-active side of the second integrated circuit exposed from and coplanar with a horizontal surface of the encapsulation; and wherein a top surface of the conductive pillar is below a top surface of the second integrated circuit, and the top surface of the conductive pillar and the top surface of the second integrated circuit are exposed from the encapsulation.