An Experimental Study of TMAH Etching Silicon for MEMS

In the process of Micro-Electrical-Mechanical System (MEMS), the anisotropic wet chemical etching rate of the silicon wafer is very important for fabricating MEMS to determine the fabricating method, processing and etching time. The etching rates of the silicon wafer in the TMAH solution with the different temperature are obtained in this paper. The micro-fabrication technology and micro-fabrication process are also discussed. In the same time, all experimental data are put forward in details.