公开(公告)号：US11691214B2

公开(公告)日：2023-07-04

申请号：US17503343

申请日：2021-10-17

Applicant: SHINKAWA LTD.

Inventor： Hiroshi Munakata ,  Yuhei Ito ,  John Ditri ,  Moe Tehrani

IPC: B23K20/10 ,  B23K20/00 ,  B23K101/40

CPC classification number: B23K20/10 ,  B23K20/004 ,  B23K2101/40

Abstract: An ultrasound horn is provided which vibrates a bonding tool, attached at a tip, in a plurality of directions with a simple structure. There is provided an ultrasound horn having: a longitudinal vibration generator; a horn portion; and a torsional vibration generator. The torsional vibration generator includes a body including a polygonal pillar portion, second layered elements in which a plurality of second piezoelectric elements are layered, and which are attached to side surfaces of the polygonal pillar portion, weights, and a pressure application ring which applies a pressure by pressing the second piezoelectric elements against the polygonal pillar portion via the weights.