Nanopore fabrication in silicon oxynitride membranes by heating Au-particles

We report the fabrication of nanopores in a silicon oxynitride (SiON) membrane by heating a silicon rich -silicon nitride (SiRN) membrane with a gold nanoparticle array deposited on its surface. The gold nanoparticle array was realized by photolithography and the membrane by wet -etching. The entire process is wafer scale. Nanopore through -holes of an average diameter of 150nm were produced in a -22 tun thick membrane. Membranes and nanopores were characterized by atomic force microscopy, scanning transmission electron microscopy, and x-ray photo -electron spectrocopy.