Patent ID: 11862469
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 0:
1. A method of forming a package structure, comprising:
forming a first package structure, comprising:
forming a redistribution layer (RDL) structure;
bonding a die to the RDL structure, wherein the RDL structure is electrically connected to the die;
forming a through via on the RDL structure and laterally aside the die;
forming an encapsulant to laterally encapsulate the through via and the die;
forming a protection layer over the encapsulant and the die; and
forming a cap on the through via and laterally aside the protection layer, wherein the cap has a top surface higher than a top surface of the encapsulant and lower than a top surface of the protection layer;

removing the cap from the first package structure; and
connecting the first package structure to a second package structure.