Patent ID: 11923340
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. A semiconductor package, comprising:
a first package substrate;
a second package substrate disposed on the first package substrate;
a connecting bump and an underfill disposed between the first package substrate and the second package substrate;
a base chip disposed on the second package substrate, the base chip comprising a base substrate, a through-silicon via (TSV) extending through the base substrate, and a connecting bump electrically connected to the TSV, the connecting bump being electrically connected to the second package substrate;
a first semiconductor chip disposed on the base chip, the first semiconductor chip comprising a first semiconductor substrate, a first TSV extending through the first semiconductor substrate, and a first connecting bump electrically connected to the first TSV, the first connecting bump being electrically connected to the base chip;
a plurality of second semiconductor chips disposed on the first semiconductor chip;
an inner mold layer surrounding a side surface of the base chip, a side surface of the first semiconductor chip and a side surface of the plurality of second semiconductor chips;
a main semiconductor chip disposed on the second package substrate while being spaced apart from the base chip, the first semiconductor chip and the plurality of second semiconductor chips;
a first outer mold layer interposed between the second package substrate and the base chip and between the second package substrate and the main semiconductor chip while surrounding the side surface of the base chip, the first outer mold layer comprising a first base material and a first filler; and
a second outer mold layer covering the first outer mold layer and the inner mold layer while being spaced apart from the base chip, the second outer mold layer comprising a second base material and a second filler,
wherein a viscosity of the first base material is lower than a viscosity of the second base material,
wherein a size of the first filler is smaller than a size of the second filler,
wherein an under surface of the first outer mold layer is in contact with the package substrate,
wherein an upper surface of the first outer mold layer is in contact with an under surface of the second outer mold layer,
wherein an outer side surface of the first outer mold layer and an outer side surface of the second outer mold layer are coplanar, and
wherein the outer side surface of the first outer mold layer and an outer side surface of the package substrate are coplanar.