경북대학교 산학협력단;KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
发明人:
ROH, YONG RAE,노용래,SHIN, EUN HEE,신은희,LEE, SU SUNG,이수성
申请号：
KR1020120019289
公开号：
KR1020130097552A
申请日:
2012.02.24
申请国别(地区):
KR
年份:
2013
代理人:
摘要：
PURPOSE: A multi-layer activeness material type ultrasonic transducer and a manufacturing method thereof are provided to etch a board layer of a part where a piezoelectric element is positioned in a flexible printed circuit board and to bind the piezoelectric element to a metal layer immediately, thereby improving the performance and simplifying the process, by decreasing the impedance and increasing the capacitance between the piezoelectric elements by laminating the piezoelectric element. CONSTITUTION: A manufacturing method of an ultrasonic transducer is comprised of the following steps: a board formation step (S100) forming a metal layer on a board layer； an exposure/development step (S200) for forming a desired pattern circuit on the board layer and the metal layer； an etching step (S300) which partially etches the board layer and the metal layer for forming the circuit； a protective layer laminating step (S400) laminating a protective layer on the metal layer which is exposed for the protection of the metal layer； a surface treatment step (S500) which surface-treats the exposed metal layer； and a piezoelectric element binding step (130) which binds a piezoelectric element on the surface-treated metal layer. [Reference numerals] (AA) Start； (BB) End； (S100) Board formation step forming a metal layer on a board layer； (S200) Exposure/development step exposing the metal and board layers to lights and developing them to gain a desired pattern circuit on them； (S300) Etching step partially etching the board layer and the metal layer for forming the circuit； (S400) Protective layer laminating step laminating a protective layer on the metal layer which is exposed； (S500) Surface treatment step treating the surface of the exposed metal layer； (S600) Piezoelectric element binding step binding a piezoelectric element on the surface-treated metal layer본 발명의 실시예에 따른 초음파 트랜스듀서는, 유연성 인쇄회로기판의 적어도 일면에 압전소자가 적층되는 초음파 트랜스듀서로서, 유연성 인쇄회로기판은, 기판층； 및 기판층의 적어도 어느 일면에 마련되는 금속층；을 포함하며
