Patent ID: 11929265
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 1:
2. A semiconductor manufacturing apparatus comprising
a tool performing joining by ultrasonic vibration while applying a load to a metal terminal, wherein
the tool includes a plurality of protrusions arranged on a pressing surface in a rectangular shape at a tip end portion facing the metal terminal along a first direction and a second direction that is a direction intersecting the first direction,
intervals between the plurality of protrusions are equal in the first direction of the pressing surface, and are larger on an inner peripheral side than on an outer peripheral side of the pressing surface in the second direction, and
widths of the plurality of protrusions in the second direction are larger on the outer peripheral side than on the inner peripheral side of the pressing surface in the second direction.