公开(公告)号：US10322437B2

公开(公告)日：2019-06-18

申请号：US15221087

申请日：2016-07-27

Applicant: OLYMPUS CORPORATION

Inventor： Hiroshi Ito ,  Koichi Shiotani

IPC: H01L41/083 ,  H01L41/047 ,  H01L41/09 ,  B06B1/06 ,  H01L41/277 ,  B06B3/00 ,  A61B17/32 ,  H01L23/00 ,  A61B18/00 ,  A61N7/00

Abstract: A stacked ultrasound vibration device is provided with a plurality of piezoelectric bodies between two mass materials, in which brazing materials with an elastic constant smaller than elastic constants of the two mass materials and the plurality of piezoelectric bodies are used to bond the plurality of piezoelectric bodies as similar material bonding portions by a first metal bonding layer with a first thickness and to bond the plurality of piezoelectric bodies and the mass materials as dissimilar material bonding portions by a second metal bonding layer with a second thickness thicker than the first thickness.

公开(公告)号：US09831412B2

公开(公告)日：2017-11-28

申请号：US14611361

申请日：2015-02-02

Applicant: OLYMPUS CORPORATION

Inventor： Hiroshi Ito

IPC: H01L41/047 ,  H01L41/09 ,  B06B1/06 ,  A61B17/32 ,  A61N7/00 ,  H01L41/083 ,  H01L41/277 ,  A61B17/28 ,  A61B17/285 ,  A61B17/29 ,  A61B18/00

CPC classification number: H01L41/0471 ,  A61B17/282 ,  A61B17/285 ,  A61B17/320092 ,  A61B2017/2925 ,  A61B2018/00607 ,  A61N7/00 ,  B06B1/0611 ,  H01L41/0477 ,  H01L41/083 ,  H01L41/0833 ,  H01L41/277 ,  Y10T29/42

Abstract: An ultrasound vibration device is provided with a stacked transducer in which a plurality of piezoelectric single crystal element layers are stacked between two metal blocks. Since each of the two metal blocks and the plurality of piezoelectric single crystal element layers is fusion-bonded relative to a stack direction by bonding metal having a melting point corresponding to half a Curie point of the plurality of piezoelectric single crystal element layers or below, it is possible to use non-lead material, reduce a processing cost and realize inexpensiveness.