Patent ID: 11967581
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A package structure, comprising:
a lower substrate;
substrate connection terminals on the lower substrate;
a semiconductor package on the substrate connection terminals, the semiconductor package including a package substrate and an encapsulant covering the package substrate; and
a first underfill and a second underfill between the lower substrate and the semiconductor package,
wherein the first underfill includes:
a first inner portion overlapping the semiconductor package in a vertical direction, the first inner portion covering at least one of the substrate connection terminals, and
a first outer portion not overlapping the semiconductor package in the vertical direction, the first outer portion covering at least a portion of a side surface of the semiconductor package, and

wherein the second underfill includes:
a second inner portion overlapping the semiconductor package in the vertical direction, the second inner portion covering a greater number of the substrate connection terminals than a number of the substrate connection terminals covered by the first inner portion, and
a second outer portion not overlapping the semiconductor package in the vertical direction.