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Via Protection Design Guidelines 1.1

This document delves into via protection strategies in PCB production and recommends IPC-4761 Types V, VI, and VII to ensure long-term reliability. It provides advice against outdated tenting and plugging techniques, which can lead to issues like corrosion and via blow-out. Included are practical design recommendations, optimal hole size guidelines, and a clear emphasis on fully filled vias to enhance performance and durability.


NCAB Group is a leading global PCB supplier founded in 1993. Today, we have a local presence in 19 countries in Europe, Asia and North America and customers in approximately 45 countries worldwide. We produce PCBs for demanding customers. Our ongoing goal is to help our customers achieve the best possible time to market and competitive advantage by producing printed circuit boards in a sustainable way at the lowest total cost. Our mission is to provide PCBs with zero defects on time. Our vision is simple: To be the number one PCB producer—wherever we are. Although size provides the leverage that is important, being number one doesn’t necessarily mean being the biggest. In our case, number one also means being able to lead the market in terms of expertise, quality of service, sustainability, technology, etc.

NCAB Group is a leading global PCB supplier founded in 1993. Today, we have a local presence in 19 countries in Europe, Asia and North America and customers in approximately 45 countries worldwide. We produce PCBs for demanding customers. Our ongoing goal is to help our customers achieve the best possible time to market and competitive advantage by producing printed circuit boards in a sustainable way at the lowest total cost. Our mission is to provide PCBs with zero defects on time. Our vision is simple: To be the number one PCB producer—wherever we are. Although size provides the leverage that is important, being number one doesn’t necessarily mean being the biggest. In our case, number one also means being able to lead the market in terms of expertise, quality of service, sustainability, technology, etc.

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