Secondary Drilling in PCB Manufacturing: The Key to Achieving Micron-Level Hole Positioning Accuracy Introduction: Why Micron-Level Accuracy Has Become a Decisive Factor    In modern PCB manufacturing, the margin for positional error has narrowed to a scale that would have been considered impractical just two decades ago. As multilayer stack-ups exceed 20, 30, or even 50 layers, and as interconnec...

The Final Correction: Ensuring Yield and Reliability Through Secondary Drilling in PCB Production Introduction    In modern printed circuit board (PCB) production, yield and reliability are no longer achieved solely through advanced materials or high-speed imaging technologies. Instead, they increasingly depend on subtle corrective processes that refine what earlier stages could not perfect. Among...

Tenting in PCB Manufacturing: The Essential Process for Via Protection and Solder Mask Integrity 1. Introduction to Tenting in PCB Manufacturing    Printed Circuit Boards (PCBs) form the backbone of modern electronic devices, enabling the interconnection of electronic components while maintaining signal integrity and structural stability. As electronics continue to shrink in size while increasing...

The Cost-Effective Guardian: The Role of Tenting in Ensuring Basic PCB Reliability 1: Understanding the Fundamentals of T-enting 1.1 What Tenting Means in PCB Manufacturing — T-enting as a Fundamental Protective Step    Tenting refers to the practice of covering a via with dry film photoresist during the imaging process so that the copper annular ring and the hole opening are both isolated from su...