of polyester based 0 pm pitch pattern a newly developed consists of a prest and ideal etching with formation. Defect, cause, and FPC manufacturing processes as well as the reaction off of the impure ions can be ellent anti-corrosion character The Al/PET FPC is then carrier for the COF (Chip on tching of aluminum on er is possible for 1.0 mm pitch for 0.2 mm pitch. Using these lines are generated. difficult to use such as lower ionization tendency Cu+ + Fez+ ( 1 )