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

Claim 16:
17. A method of forming a package structure, comprising:
forming a polymer layer;
forming a redistribution layer over the polymer layer;
attaching a die sandwiched between the polymer layer and the redistribution layer;
forming an adhesion promoter layer, an oxide layer, a through via, and an encapsulant sandwiched between the polymer layer and the redistribution layer, wherein
the encapsulant laterally encapsulates the die;
the through via extends through the encapsulant;
the adhesion promoter layer and the oxide layer are laterally sandwiched between the through via and the encapsulant,
wherein a bottom portion of the encapsulant is longitudinally sandwiched between the adhesion promoter layer and the polymer layer.