Product Finishing Liquid photo-imageable solder mask ( LPI) Peelable solder mask Conductive Carbon Ink Hot Air Solder Leveled finish ( HASL) , with thickness of 80 to 1, 000 microinches ( 2.0-25 micron) ....
YCF is a world leader in the manufacture of printed circuit board. Beijing Yichangfa Electronic Co, Ltd, was founded in 1995, which has developed into the largest eclectronic manafacture service ....