Patent ID: 11923309
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A semiconductor package, comprising:
a package substrate;
a redistribution substrate on the package substrate, the redistribution substrate including a photosensitive polymer layer and a plurality of redistribution patterns in the photosensitive polymer layer;
a first semiconductor chip on the redistribution substrate;
a second semiconductor chip on the redistribution substrate and spaced apart from the first semiconductor chip, the second semiconductor chip including a plurality of vertically stacked memory chips;
a plurality of first connection terminals between the redistribution substrate and the first semiconductor chip and between the redistribution substrate and the second semiconductor chip;
a plurality of second connection terminals connecting the package substrate to the redistribution substrate;
a molding layer on the redistribution substrate, the molding layer at least partially covering the first semiconductor chip and the second semiconductor chip; and
a thermal radiation structure on the package substrate, the thermal radiation structure covering or overlying the redistribution substrate, the first semiconductor chip, and the second semiconductor chip,
wherein each of the redistribution patterns includes:
a line part that extends along one direction in a dielectric layer; and
a via part that penetrates the dielectric layer and is connected to the line part,

wherein the line part of each of the redistribution patterns includes a substantially planar top surface, a nonplanar bottom surface, and a first and second rounded edges between the nonplanar bottom surface and opposite first and second sidewalls of the line part,
wherein the line part of each of the redistribution patterns includes a central portion and first and second edge portions on opposite sides of the central portion, and
wherein the line part of each of the redistribution patterns has a first thickness as a minimum thickness at the central portion and a second thickness as a maximum thickness at the first and second edge portions.