![Biased and Unbiased HAST Testing](https://d27wgn5g4t3wja.cloudfront.net/img/83318683-046f-bbf2-d7ca-a059b58b2acd/155573.png)
Biased and Unbiased HAST Testing
Considered within the semiconductor industry as the fast and effective alternative to Temperature Humidity Bias testing (THB), Highly-Accelerated Temperature and Humidity Stress Test (HAST) is a critical part of the device package Qualification process and is used to evaluate the reliability of non-hermetic packaged devices in humid environments.