Flexible Print Circuit Board

The electronic industry has been booming in recent years, which benefits the computerization and miniaturization of automatic instruments and meters, computer equipments and household electronical products. As a result, the closely related flexible connective element-FPC has also been developed fully. Different from the traditional mutual connection, FPC has been extensively applied in various fields. The advantages are listed as following:
	Flexibility It can be bent, folded and deformed freely. Its coil radius is small and it can be moved freely along X,Y,Z axis separately .
	Occupy small space Since it is light and thin,it makes best use of the narrow space in the instruments. (average thickness 1.1-0.am)
	Light weight Its weight is very light because the design of FPC is not based on mechanical strength but current load.
	Good seal capability The flexible board could be designed for low- tensile seal enduring the adverse environment.
	Steady transmission The wiring pattern and the conductor distance can be freely designed according to electric parameters. Once the pattern is finalized, parameters of R.L.C is steady accordingly.
	Easy assembly The property of terminal is good enough to be fixed to any equipment by soldering, inserting, riveting and gluing. Manual mistakes in traditional wiring are avoided.
	Good insulation We selected the materials with good insulation property, such as polyimide, polyester, etc. Usually, the wiring is covered, so the insulation is greatly strengthened.       Polyimide Polyester Technical indicator Polyimide Polyester Min aperture（mm） 0.3 0.3 Min line wide（mm） 0.08 0.08 Min pitch（mm） 0.08 0.08 Overall accuracy（mm） ±0.05 ±0.05 Welding 280℃ >10s 120℃ >10s Peel strength 1.2kg/cm2 1.0kg/cm2 Temperature -200℃-+300℃ -80℃-+120℃ Surface resistance（Ω） 1.0×1011 1.0×1011 Curve of resistance IPC Standard IPC Standard Chemical Resistance IPC Standard IPC Standard Material Item PI PET Base material um 12.5、25、50、75、125 25、50、75、100 Cover film  um 12.5、50、75 25、50 Cu  um 18、35、50、70 Cu material ED Red for the common specifications