Title:
A method for manufacturing the high temperature ultrasonic wave transducer which uses the lithium niobate crystal soldered by gold and indium
Document Type and Number:
Japanese Patent JP6181644
Kind Code:
B2
Abstract:
A process for manufacturing a high-temperature ultrasonic transducer, said transducer comprising a steel or metal top electrode, a piezoelectric converter, a steel or metal support ensuring the interface between the converter and the propagation medium of the acoustic waves, a first joint between the support and the piezoelectric crystal, and a second joint between the converter and the top electrode, comprises, to produce said gold-and-indium-based joints, a brazing and diffusing operation comprising the following steps: a first step of increasing temperature to a first temperature comprised between about 150° C. and about 400° C. and of maintaining this first temperature for a first length of time corresponding to a first plateau; and a second step of increasing temperature to a second temperature comprised between about 400° C. and about 1000° C. and of maintaining this second temperature for a second length of time corresponding to a second plateau.
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Inventors:
Luillier, Christian
Application Number:
JP2014517729A
Publication Date:
August 16, 2017
Filing Date:
June 29, 2012
Export Citation:
Assignee:
Comicilia Arenergy Atomic Eo Energy Alternatives
International Classes:
H04R31/00; H01L41/09; H01L41/113; H01L41/187; H01L41/29; H01L41/313
Domestic Patent References:
| JP52066386A | ||||
| JP55151899A | ||||
| JP2007165385A |
Attorney, Agent or Firm:
Takahisa Kimura
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