Welcome to Well-Tech - one of the leading manufacturers and suppliers of PCB products in China. Our factory is engaged in PCB manufacturing and offering customized high stability multilayer pcb with immersion silver and rohs compliant at competitive price. High reliability, strong diversity and expert advice are our characteristics. Please contact us if you have inquiry.
Immersion silver: Immersion silver deposition of Ag thickness between 3u’’ to 8u’’. Finishing is Lead Free and with RoHS compliant. Excellent flatness, suitable apply to complex SMD, Fine Pitch BGA, Press Fit and Multisolder. It can be stored up to 1 year. The advantage is the low thermal stress during the production process. The disadvantage is the difficulty for reprocessing.
Material /Laminate: IT180A (Tg180)
Board thickness: 2.0mm
Copper weight: 1/1/1/1/1/1oz
Finishing: Immersion silver
The affect of surface treatment on soldering as below,