Table of Contents
Introduction
Proper storage conditions and shelf life management are crucial for maintaining the quality and performance of Printed Circuit Boards (PCBs). This guide provides detailed information on the recommended storage conditions, handling procedures, and shelf life for different types of PCBs.
Storage Conditions
1. Temperature and Humidity
Temperature: 20-24°C;
Humidity: 40-60%;
Sealed Package: All boards must be stored in a sealed package to prevent moisture absorption.
2. Unsealed Production Time
Boards should be put into production within 48 hours after unsealing to avoid degradation.
Special Considerations for HDI Boards
1. Datecode Management
3 Months: HDI boards with a datecode exceeding 3 months need to be baked at 125°C for 4 hours before use.
6 Months: HDI boards with a datecode exceeding 6 months are not recommended for use.
2. Unsealed Production Time
HDI boards should be put into production within 48 hours after unsealing. Otherwise, they need to be baked at 125°C for 4 hours before use.
Shelf Life and Acceptance Criterion
The following table outlines the shelf life and acceptance criteria for various PCB finishes:
Conclusion
Adhering to these storage conditions and shelf life guidelines ensures the reliability and performance of your PCBs. Proper handling and timely production are essential to maintain the quality of both standard and HDI boards.
