Soft Errors

Low Alpha
Low Alpha
All Resources
All Resources

Using packaging material with sufficiently low alpha emissions affords the simplest solution to problems caused by soft errors and does not present any integration or compatibility issues. Asking your supplier if they use RadLo is the only way you’ll know that the best low alpha material available is used in your products.

  • Industry Needs

Soft errors are caused by alpha particles that penetrate transistor junctions of semiconductor devices. While soft errors are not permanent in nature, they can cause device malfunctions. This leads to performance issues and can be a serious problem in devices used in critical applications.


View Larger ImageAlpha Particles

In the past, cosmic rays and other environmental sources were the primary cause of soft errors in semiconductor devices. However, as device geometries have decreased and design complexities have increased, alpha emissions from semiconductor packaging materials such as wafer bumps (below right) have become a greater concern. This is because at more advanced nodes, lower alpha-emitting packaging materials are needed(see illustration below left).

Alpha Emissions Limit
View Larger ImageAlpha emissions limit chart
Wafer Bumping Issues
View Larger ImageWafer bumping issues small info graphic

Our rigorously tested high-quality materials do not affect device performance or behavior and meet your low alpha packaging needs.