Patent ID: 11948863
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A package structure, comprising:
a first die and a second die;
a first through via laterally aside the first die;
a second through via laterally aside the second die;
a first adhesion promoter layer laterally surrounding the first through via;
a second adhesion promoter layer laterally surrounding the second through via;
a first encapsulant laterally encapsulating the first die, the first adhesion promoter layer and the first through via;
a second encapsulant laterally encapsulating the second die, the second adhesion promoter layer and the second through via;
an oxide layer sandwiched between the first through via and the first encapsulant;
a first redistribution layer (RDL) structure between the first die and the second die and electrically connected to the first through via, the second through via, and the first die;
a first polymer layer under the first through via;
a second polymer layer of the first RDL structure under the second through via; and
a second RDL structure on the second die, the second encapsulant, the second through via, and the second adhesion promoter layer,
wherein the second through via extends through the second adhesion promoter layer and the second polymer layer,
wherein a bottom portion of the second encapsulant is sandwiched between the second adhesion promoter layer and the second polymer layer.