Process for removing zinc-chromium oxide coatings used in the production of semiconductors comprises directing a laser beam onto regions of a surface covered with the coating

摘要

Process for removing adhesion promoters used in the production of semiconductors comprises directing a laser beam onto regions of a surface covered with an adhesion promoter. An Independent claim is also included for a device for applying chips onto a leadframe or for applying bonding wires between a semiconductor chip and a leadframe. Preferred Features: The surface processed with the laser beam is held in a protective gas atmosphere. The laser beam is used in impulses.