Patent ID: 11942451
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of forming a semiconductor structure, comprising:
providing a functional die, a first dummy die and a second dummy die, the first dummy die being between the functional die and the second dummy die;
encapsulating the functional die, the first dummy die and the second dummy die by an insulating material;
forming a first alignment mark over the first dummy die and a second alignment mark over the second dummy die, wherein from a top view, a shape of the first alignment mark is different from a shape of the second alignment mark; and
cutting the insulating material along a sawing line between the first alignment mark and the second alignment mark, to separate the functional die and the first dummy die from the second dummy die.