Patent ID: 11923314
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A semiconductor package comprising:
a connection structure comprising a redistribution layer and an insulating layer on the redistribution layer, and comprising a first face and a second face opposite to each other;
a molding layer on the first face of the connection structure, the molding layer comprising an opening that overlaps at least a part of the redistribution layer;
a semiconductor chip in the opening;
a chip pad on the semiconductor chip, wherein the chip pad is electrically connected to the redistribution layer;
a core layer comprising a core insulating layer, and a penetration via that penetrates the core insulating layer and is electrically connected to the redistribution layer, on a side face of the semiconductor chip;
a first under bump metal layer and second under bump metal layers connected to the redistribution layer, wherein the first under bump metal layer and the second under bump metal layers are on the second face of the connection structure;
a passivation layer on at least a part of respective side faces of the first under bump metal layer and the second under bump metal layers, and comprising a trench extending in a first direction between ones of the second under bump metal layers adjacent to each other;
a solder ball on the first under bump metal layer;
a surface mounting element electrically connected to the second under bump metal layers by a connection member and overlapping the trench; and
an underfill material layer that is between the passivation layer and the surface mounting element, and is in the trench,
wherein the trench comprises a first trench extending in the first direction, and second and third trenches each connected to the first trench and spaced apart from each other in the first direction,
wherein the first trench comprises first to third sub-trenches having respective first to third widths in a second direction that intersects the first direction and is a length direction of the connection structure,
wherein the second sub-trench is between the first sub-trench and the third sub-trench, and the second width is wider than the first width and smaller than the third width, and
wherein the respective second and third widths of the second and third trenches in the second direction are wider than a width of the surface mounting element in the second direction.