Stripping flat cables

Details Stripping flat cables Stripping flat cables

2006-05-16

2006-05-16

Elve, M. Alexandra (Department: 1725)

Electric heating

Metal heating

By arc

C219S121680

Reexamination Certificate

active

07045739

ABSTRACT:
The invention pertains to a process for stripping conductor traces (2) of extruded or laminated flat cables (1), so-called FFCs, using laser beams (4).The invention is characterized in that a beam of a CO2laser or an Nd:YAG laser (4) is used in a first step, and an excimer laser or a frequency-multiplied Nd:YAG laser is used in a second step, in that the CO2laser 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) (2), said layer being removed in the second step by the beam of the excimer laser or frequency-multiplied Nd:YAG laser.

REFERENCES:
patent: 4931616 (1990-06-01), Usui et al.
patent: 6509547 (2003-01-01), Bernstein et al.

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