HDI
Description:High density circuits demand high accuracy from production. If you use SMD components and fine line (track <125µm, drill <=0,2mm), we speak of HDI PCBs. HDI stands for High Dens
Sequential Build Up
Description:Production of a multilayer printed circuit board in several lamination sequences. Especially multiple burried vias in high density boards (HDI) require the SBU technol
Leakage current resistance
By moisture or impurities between two points on the, in principle insulating, PCB base material, a measurable current flow is measurable if a correspondingly high voltage i
IPC
Description:IPC is an international trade association that represents all branches of electronics manufacturing industry. The mission statement reads Association Connecting Electronics Industries
FED
Description:The Fachverband Elektronik-Design (FED) is a trade association of electronics manufacturing industry. Their members are from Germany, Austria and Switzerland. FED translates IPC stand
Underwriters Laboratories
Description:Underwriters Laboratories (UL) is a saftey consulting and certification company. They develop product standards and perform product safety tests.
The UL marking
Pitch
In printed circuit boards pitch is the center-to-center distance of drill holes, BGA pads or component connectors. If grids are smaller than 0.7mm or copper structures smaller than 150µm the bo