PCB-TIPS

Plated Half Holes

Plated half holes(castellated holes)are holes that made off the edge of the boards plated with copper using a specialized process.

 
 

Plated half holes are available in both standard PCB and advanced PCB. For standard PCB service, the minimum diameter of castellated holes is 0.6 mm. If you need smaller castellated holes please ask our sale to offer advanced PCB service. And the minimum distance between two Plated half holes is 0.55 mm.

 
 

So how to manufacture the Plated half holes? The plating is protected from mechanical damaging by setting back the copper shell. Therefore the plated half-holes can be milled precisely and improve the process reliability strongly.