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Guide to Meeting the Standards for Moisture Sensitive Components in Electronic Manufacturing Environments

Posted on Dec 01, 2014

Introduction

Much has been written on the subject of electrostatic discharge (ESD) and moisture and their destructive impact on sensitive electronic devices. With today’s ever-increasing densities and shrinking package sizes, damage is caused by even lower potentials and less moisture than ever before. It’s time to take a renewed look at the issues and consider better ways to monitor and document the environment in the electronics manufacturing industry.

Moisture is in the air we breathe and is a necessary and somewhat unavoidable fact of life. We run humidifiers to add moisture in dry conditions and dehumidifiers in wet conditions to maintain a healthy, comfortable environment. Too much of either – too wet or too dry – can be unhealthy and uncomfortable. While the proper amount of moisture in the air is critical to good health, it can be a serious hazard in an electronics manufacturing environment. This guide will explain the issues surrounding moisture in the electronic manufacturing environment and provide a deeper understanding of the systems used to measure moisture content, typically relative humidity (RH). In addition, the guide will offer practical approaches to preventing the devastating effects of over or under-exposure to humidity.

Table of contents

  • Introduction
  • The Benefits of Moisture
  • The Drawbacks of Moisture
  • Standards for Electronics Manufacturing
  • Best Practices for Component Storage
  • RH and Temperature Measurement Systems
  • Glossary
  • References

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