The plated through-hole is covered by an LPI solder mask layer from one or both sides of the PCB. There are no other processes besides this, just cover/cover the through-hole with LPI solder mask during the printing of the solder mask layer.
No additional fees required
Helps prevent solder leakage in SMT process
Helps prevent dust or liquids during use
The through-hole may not be fully covered/covered
Not suitable for through-hole plugs in BGA area
Limit via holes, preferably less than 0.3mm and maximum 0.5mm.
mobile phone: 86-15113315665
Contact: Chen Changhai
mobile phone: 86-18676922028
E-mall: haibo_fpcba1668@163.com
Address: 3rd Floor, Building 2, Fuxing Industrial Park, Building B, Chuangye 1st Road, Jiangbian Community, Songgang Street, Bao'an District, Shenzhen