High Frequency PCBs Keyboard keypad thick copper plate processing
Layers | 1-40layers |
Copper Thickness | 0.5-10OZ |
Material | FR4(Shengyi China,ITEQ,KB A+,HZ), HI-TG, FR06,Rogers, Taconic, Argon, Nalco, lsola and so on |
Solder Mask | Green, Yellow, White, Blue, Black, Red |
Finished Surface | Conventional HASL, Lead Free HASL, Immersion Gold, Immersion TIN, Immersion Silver, Hard Gold, OSP. |
Silkscreen Color | White, Black |
Minimum line width/gap | 3. 5/4mil(Laser drill) |
Minimum hole size | 0.15mm(mechanical drill)/4mil(Laser drill) |
Minimum Annlar Ring | 4mil |
Min Solder Mask Bridge | 0.08mm |
Plugging Vias capability | 0.2-0.8mm |