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Fabrication and Experiment of Piezoelectric Micro Cantilever Applicable to Thrombolysis
백건훈(Kun Hoon Baek),서영태(Young-Tai Seo),방용승(Yong-Seung Bang),김종만(Jong-Man Kim),김성현(Sung Hyun Kim),김용권(Yong-Kweon Kim) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.11
This paper describes a resonant driving piezoelectric micro cantilever practicable to ultrasound thrombolysis device for the treatment of ischemic stroke. The proposed piezoelectric cantilever was designed to be a unimorph structure of Si/SiO₂/Ti/Pt/PZT/Pt, and fabricated by top-down sequence etching process. The red blood cell (RBC) lysis experiment was carried out to confirm the usability of the proposed cantilever. Total 87.76% of RBCs were ruptured using the ultrasound generated by up-down actuations of the fabricated cantilever with AC voltage having the frequency of 19.36 ㎑ and the magnitude of 30 V<SUB>p-p</SUB>.