Researchers at the Paul Scherrer Institute PSI have been improving the resolution of a process known as photolithography. They hope to use their technique to help advance the miniaturization of computer chips. Researchers at the Paul Scherrer Institute PSI have been improving the resolution of a process known as photolithography. They hope to use their technique to help advance the miniaturization of computer chips. Nanophysics Nanomaterials Phys.org – latest science and technology news stories