Patent ID: 11961777
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A method of forming a package structure, comprising:
mounting a first die and a second die on a carrier;
forming a buffer material to conformally cover the first die and the second die;
forming an encapsulant material layer on the buffer material; and
performing a first planarization process to remove the encapsulant material layer and the buffer material over the first die and the second die, so as to form a first encapsulant and a buffer layer in a single process,
wherein the buffer layer extends continuously from a sidewall of the second die to cover a sidewall of the first die adjacent to the second die and further covers a corner of the second die, a top surface of a passivation layer of the second die, and a sidewall of a connector of the second die.