... and fabrication of piezoelectric MEMS inkjet (1st version-InkjetVer1) done in our STD Lab, the computer simulation and validation of inkjet have been investigated, and then the 2nd version (InkjetVer2) ... background of piezoelectricity, types of piezoelectric MEMS inkjet head and general principle of numerical simulation 1.1 Piezoelectricity 1.1.1 Piezoelectric effect All polar crystals show piezoelectricity, ... voltage of 9V-21V and frequency above 15 kHz 37 CHAPTER FABRICATION AND CHARACTERIZATION OF PIEZOELECTRIC MEMS INKJET PRINT HEAD Abstract This report describes the fabrication and characterization of...