Via Filling in PCB Manufacturing: The Complete Guide to Materials, Methods, and Quality Control 1. Understanding Via Filling in PCB Manufacturing 1.1 Via Filling in PCB Manufacturing: Definition and Basic Concept    Via filling refers to the process of depositing conductive or non-conductive material into a via—typically a drilled hole used to form electrical or thermal connections between PCB lay...

Plugged Vias: A Key Process for Reliable and High-Density PCB Manufacturing Understanding Plugged Vias: Definition and Design Fundamentals 1.1 Definition of Plugged Vias    Plugged Vias refer to vias on a PCB that are intentionally filled with a specialized material such as epoxy resin or copper paste. This filling seals the via barrel and prevents solder or flux infiltration during assembly. Depe...

Understanding the Aesthetics and Engineering Behind the Blue Circuit Board     The Blue Circuit Board is not merely a product of visual preference—it is a combination of chemistry, light physics, and material science. At its core, a blue PCB is identical in electrical structure to other boards: it consists of copper traces laminated between dielectric layers, all protected by a solder mask. Howeve...

From ENIG to Hard Gold: Selecting the Right PCB Plating Process for Your Performance Needs 1. Definition and Fundamentals of the PCB Plating Process 1.1 What Is a PCB Plating Process    The PCB Plating Process is the controlled deposition of metallic layers on the surface or through the holes of a printed circuit board. This process creates conductive paths, enhances solderability, and protects co...