Patent ID: 11876070
Assignee: MITSUI MINING & SMELTING CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. The method according to claim 5, wherein (f) is performed by sandwiching the fourth laminate between a suction tool and the back plate, wherein the suction tool comprises:
a front plate;
the pair of sealing members provided on the front plate separately and in parallel with each other;
a second sealing member provided on the front plate in such a way as to be bridged between the pair of the sealing members;
an upper cap connected to an upper end of the front plate and/or an upper end of the pair of sealing members, the upper cap being capable of forming a closed space for reducing pressure together with the front plate, the pair of sealing members, the second sealing member, and the back plate; and
a suction port provided at the upper cap, and
wherein the pump is connected to the suction port.