Patent ID: 6797631
Filing Date: 2004-09-28
Classification: B81B,B81C,G01N

Abstract:
A method for fabricating a high-sensitive micro cantilever sensor comprising:a step of preparing a silicon substrate and fabricating a lower substrate by forming a cavity of predetermined thickness on an upper surface of the silicon substrate; a step of preparing an SOI (Silicon on Insulator) substrate and fabricating an upper substrate by forming one or two piezoelectric cells on an upper surface of the SOI substrate; a step of attaching the lower substrate and the upper substrate so that the surface of lower substrate on which the cavity is formed and the surface of the upper substrate on which the piezoelectric cell is formed are contacted to each other; a step of removing the silicon layer of the upper substrate until an etch stopping layer is exposed; and a step of depositing a metal layer on the etch stopping layer, and forming a sensing layer on the metal layer.