Humidity Control & Dry Cabinet Solutions for Electronics Manufacturing

The Ultimate Guide to Low Humidity Storage for Moisture Sensitive Devices

Why Is Humidity Control Critical in Electronics Manufacturing?

Humidity is one of the most underestimated risks in electronics manufacturing and storage environments. Moisture absorption in electronic components can lead to oxidation, corrosion, micro-cracks, and catastrophic failures during reflow soldering processes.

When moisture-sensitive components absorb ambient humidity, trapped water vapor expands rapidly under high temperatures. This expansion can cause internal delamination — commonly known as the “popcorn effect” in PCB assemblies.

Common Moisture-Related Failures in Electronics

• PCB delamination
• Cracking of IC packages
• Increased defect rates
• Shortened product shelf life

For manufacturers operating SMT lines, maintaining low humidity storage is not optional — it is essential for yield protection and long-term reliability.

What Is a Dry Cabinet?

A dry cabinet is a low humidity storage system designed to maintain controlled relative humidity (RH) levels to protect moisture-sensitive components.

Modern ultra low humidity dry cabinets can maintain environments as low as 1% RH, providing reliable protection for:

• Printed Circuit Boards (PCBs)
• Moisture Sensitive Devices (MSDs)
• Semiconductor components
• Optical assemblies
• Aerospace electronics

Unlike temporary solutions such as silica gel, dry cabinets provide continuous and automated humidity control.