Patent ID: 11894287
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of forming a package structure, comprising:
bonding a first die and a second die onto an interposer;
dispensing an underfill layer between the first die and the second die;
forming a first encapsulant to laterally encapsulate the first die, the second die, and the underfill layer;
dispensing a thermal interface material (TIM) on the first die, the second die, the underfill layer, and the first encapsulant, wherein the TIM has an edge thickness greater than a center thickness of the TIM; and
mounting a lid on the TIM, wherein the TIM has a first concave top surface, the lid conformally covers the first concave top surface of the TIM, and the lid has a second concave top surface corresponding to the first concave top surface.