Hi, I have fabricated array of mico cantilevers using aluminum. dimension are length=300um, width=200um, height=2um.(air gap3-4um) i am using sacrificial material and washing it away to free the cantilever. But most of the cantilevers have collapsed. I have also calculated the bending due to its own weight and i am getting answer in nanometers. Is this happening because of the E(Al)=70GPa or dimension is too large and collapsing due to its ownweight? Or am i making calculation mistake? I would really appreciate if you guys could answer my question. Thanks Ramesh syracuse university.