Patent ID: 7045739
Filing Date: 2006-05-16
Classification: H02G

Abstract:
1. Process for stripping conductor traces ( 2 ) of extruded or laminated flat cables, so-called FFCs ( 1 ), using laser beams, characterized in that a beam of a CO 2 laser or an Nd:YAG laser ( 4 ) is used in a first step, and an excimer laser or a frequency-multiplied Nd:YAG laser ( 7 ) is used in a second step, in that the CO 2 laser or Nd:YAG laser is allowed to act on the extrudate ( 3 ) of FFC ( 1 ) with an intensity and duration such that an extrudate layer ( 6 ) a few microns thick still remains in the area of the conductor trace(s), said layer being removed in the second step by the beam of the excimer laser or frequency-multiplied Nd:YAG laser ( 7 ).