Patent ID: 11869775
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A semiconductor package comprising:
a redistribution substrate;
a wafer level package on the redistribution substrate;
a connection substrate on the redistribution substrate, the connection substrate including a substrate hole therein, the wafer level package being in the substrate hole;
a molding layer on the connection substrate and the wafer level package;
an upper redistribution layer on the molding layer;
a conductive structure in the connection substrate, the conductive structure vertically extending from the redistribution substrate toward the upper redistribution layer; and
an upper package on the upper redistribution layer,
wherein the wafer level package comprises a semiconductor chip and an external connection member between the semiconductor chip and the redistribution substrate,
wherein the semiconductor chip includes a substrate, a front-end-of-line structure on the substrate, and a back-end-of-line structure on the front-end-of-line structure,
wherein the back-end-of-line structure includes:
a plurality of metal layers stacked on the front-end-of-line structure, an uppermost metal layer of the metal layers including a pad therein;
a redistribution line on the pad, the redistribution line being configured to electrically connect the pad and the external connection member; and
a first dielectric layer between the uppermost metal layer and the redistribution line; and
an upper dielectric layer on the redistribution line,

wherein the external connection member includes an under-bump pattern connected to the redistribution line through an opening of the upper dielectric layer,
wherein the under-bump pattern includes a first sidewall and a second sidewall that are opposite to each other,
wherein the first sidewall is in contact with the opening of the upper dielectric layer, and
wherein the second sidewall is spaced apart from the upper dielectric layer.