High-speed metal-based optical microscanning devices with low production cost and simple fabrication process wre successfully fabricated by direct deposition of piezoelectric materials using the aerosol deposition method (ADM) onto the micro-structured metal scanner frame. Large optical scanning angle of 35° at high resonance frequency of 23.6 kHz was achieved in ambient air without vacuum package. The scanner is applicable to SVGA high-resolution display of 800 x 600 or more. This method is a powerful tool for realizing ceramic integration with metal components.
Aerosol deposition method (ADM) is a high performance technique for fabricating of piezoelectric 1-100- micron- thick film on various kinds of substrate. High deposition rate (over 30 micron/min for area 5 mm × 5 mm), low process temperature (less than 600 °C) as well as micropatterning of PZT during deposition (without etching) are very attractive for MEMS, and micro-TAS applications. In this presentation, the performance of a Si diaphragm driven by PZT thick film deposited by ADM was investigated from the point of view of applications for micro-diffuser. To find optimum conditions of diffuser, 4 ~ 60-micron-thick PZT films were directly deposited onto 10 ~ 140-micron-thick Si substrate. Displacement of 65-micron-thick Si diaphragm ( 6 mm × 6 mm) driven by 14-micron-thick PZT film was 1.2 micron at 40 V ac at non-resonance frequency and was 24 micron at resonance of 22.4 kHz driven by 8 V. The influence of liquid loads on resonance frequency shift and fluidic follow were investigated as the first report.
Using Aerosol Deposition Method it is possible directly deposited PZT 1~100-micron-thick films on different kinds of substrates. The mechanical, and piezoelectric properties of such piezoelectric films allowed applying it to the microactuator fabrication. In this presentation, 10-μm-thick PZT film was directly deposited on the stainless steel. After annealing and poling of PZT, the fatigue of such actuator was investigated applied bipolar electrical field of 30 kV/cm keeping actuator temperature at 100°C. After 109 cycles changing in the vibration amplitude was not observed, as well as the actuator tip’s shift. Applications of such actuator for preside positioning of hard disk drive are discussed.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.