Patent ID: 11916040
Assignee: SHANGHAI INTEGRATED CIRCUIT EQUIPMENT & MATERIALS INDUSTRY INNOVATION CENTER CO., LTD
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A bonding method according to the bonding cavity structure of claim 1, comprising:
step S01: picking up the two wafers by a robot arm and placing on the upper carrier and the lower carrier respectively;
step S02: moving all the integrated arms from waiting positions until the closed space is formed by all the integrated arms closed together with the upper carrier and the lower carrier;
step S03: opening the gas nozzles located on the side of the wafers to perform the bonding process, and opening the vacuum nozzles located on the other side of the wafers, a high-speed airflow is generated between the two wafers, so as to produce the low pressure of Bernoulli effect, which generates the tension forces on the two wafers;
step S04: after completing the bonding process, the integrated arms are opened and returned back to the waiting position;
step S05: separating the upper carrier and the lower carrier, and the wafers bonded are taken out by the robot arm.