The present invention relates to a method for making an array of metal balls. The method includes the step of generating a first pattern on a metal foil which includes a plurality of foil projections. The method also includes the step of generating a second pattern on a carrier substrate. The second...http://www.google.es/patents/US6000603?utm_source=gb-gplus-sharePatente US6000603 - Patterned array of metal balls and methods of making
Patterned array of metal balls and methods of making
