TECH TIPS
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Test & Inspection
Boost Product Reliability with Environmental Stress Screening
Environmental stress screening is a series of intensified tests to identify potential manufacturing flaws.
![environmental stress screening](https://www.qualitymag.com/ext/resources/Issues/June2013/Test/QM0613-FT3-TestB-p1SL.jpg?t=1370368307&width=1080)
![environmental stress screening](https://www.qualitymag.com/ext/resources/Issues/June2013/Test/QM0613-FT3-TestB-p2SL.jpg?t=1370368381&width=1080)
This shows the vibration table in the vertical position in the background. The slip table is in the foreground. It is a metal plate on a granite table which has lubricating oil continuously pumped between the plate and the granite to minimize friction. Source: Trace Laboratories
![environmental stress screening](https://www.qualitymag.com/ext/resources/Issues/June2013/Test/QM0613-FT3-TestB-p3SL.jpg?t=1370368425&width=1080)
The use of HALT testing can significantly reduce the random failure rate of a product during its useful life. These are images of a HALT chamber. Source: Trace Laboratories
![environmental stress screening](https://www.qualitymag.com/ext/resources/Issues/June2013/Test/QM0613-FT3-TestB-p4SL.jpg?t=1370368452&width=1080)
![environmental stress screening](https://www.qualitymag.com/ext/resources/Issues/June2013/Test/QM0613-FT3-TestB-p5SL.jpg?t=1370368492&width=1080)
A photo of a thermal cycling chamber appears here. Typical volume of these chambers is 9 cubic feet. Source: Trace Laboratories
![environmental stress screening](https://www.qualitymag.com/ext/resources/Issues/June2013/Test/QM0613-FT3-TestB-p6SL.jpg?t=1370368545&width=1080)
This is a typical thermal shock chamber. The typical volume of the chamber is 1.8 cubic feet. Source: Trace Laboratories