A method for fabricating a metal member having a plurality or multitude of fine holes comprises forming a repeatedly usable master which includes a conductive substrate and non-conductive portions used to form the fine holes and fixedly deposited on the conductive substrate, subjecting the master to...http://www.google.ca/patents/US5462648?utm_source=gb-gplus-sharePatent US5462648 - Method for fabricating a metal member having a plurality of fine holes