PCBPrinted Circuit board. This term is usually applied to the completed product consisting a fiberglass core with copper traces n’ spaces on the outer surfaces.Trace and SpaceThe pattern applied to the layers of a PCB. Trace and space widths come from the design software and are contained in the “Ge
This article clears up confusion about different via structures in PCB fabrication and lists the pros and cons of each.
IPC4761-Type VII mean that the via need resin filled and copper cap, as the picture shown.A lower cost alternative to the blind via is a process that fills the thru-hole via sand via in the BGA pads with a resin that replicates the coefficient of thermal expansion of the epoxy used in the prep reg.
Multi-layer vs. Double-sided PCBsMulti-layer PCB (MLB) processThe simplest MLB starts with a double-sided core. This thin, inner-layer material has copper on both sides. The copper surface is prepped with a photosensitive material that can be exposed by the application of UV light, and the light is