Скачать или смотреть How To Prevent PCB Failure Analysis and Testing | Sierra Circuits

Did you know that more than 25% of PCB failures occur due to ionic contamination? These contaminated PCBs are sent back to the manufacturer for revision. Additionally, ionic contamination may cause a catastrophic failure, leading to a substantial financial loss for a fabricator. PCB testing and analysis for ionic contamination is a widely discussed topic in the electronics manufacturing industry.

The testing phase of PCB manufacturing is one of the most important stages. Without testing your PCBs, there is a possibility that errors and problems have been overlooked during the production stage.

Key factors driving the need for PCB testing and analysis include failure identification, time saving, and cost reduction.

The PCB is tested at different stages during the manufacturing process. Sierra Circuits provides a Certificate for Compliance along with a final inspection checklist including dimensional requirements and measurements. Here are a few PCB tests specifically highlighted. PCB testing is performed in multiple phases.

The prepeg test provides information on the content of composite and resin, gel time and resin flow rate. It also provides information on resin quality and grade.

Ionic contamination testing can be summarized as an extractive analysis technique that allows the quantitative measurement of ionic contamination on electronic boards. These parameters are determined in purity per official regulations and verify the surface quality.

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