In order to solve the problems of difficult machining of ceramic-based micro-hotplate MEMS devices and failure lithography stripping of Pt film using conventional positive photoresist
Al N ceramic is as a substrate for the micro-hotplate sensor array and the laser micromachining technology is employed to realize the thermal isolation etching
the etched beam width in the thermal isolation structure is about 0. 2 mm. In addition
a flexible mechanical lift-off method is also proposed to solve the difficult lithography stripping of Pt film with an inverseechelon indentation using conventional positive photoresist. This method can realize a 10 μm line width of lithography stripping of Pt film on ceramic-based substrate. Moreover
ANSYS software is explored to design the senor array and simulate its thermal structure.
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Fabrication of clinical gas sensor using MEMS process [J] . Yun-Su Lee,Kap-Duk Song,Jeung-Soo Huh,Wan-Young Chung,Duk-Dong Lee. Sensors & Actuators: B. Chemical . 2005 (1)