Half Plated Holes Pcb Board

Product name: half plated holes pcb board  CharacteristicLayer count:4 Board thickness:1.2mm Base materials:FR4 S1141 Finished size: 144*132mm Surface finish: HASLLF Line width/line space: 6/6mil Minimum hole: 0.30mm Solder resist color: Sensitive green Cu thickness: inner layer 1 OZ outer layer 1 OZSpecifications:the four edges of the board have metallized half hole design,Website:http://www.allpcbwin.com, the aperture of the finished boards is small and the hole space is small. Half hole boards is generally used in bluetooth module and security monitoring module.in the process of the manufacturing PCB, it needs to design special procedure to ensure the half hole of the boards to be metalized, and without metal burrfor the production process is more longer, so generally the lead time of this kind of board will be extended for 1-2 daysthe boards with half hole design can't do gold plating finish, but you could choose ENIG , HASL and HASL LF