Here at UNIPOWER we use HASS or "Highly Accelerated Stress Screening" during the production process to improve the quality of our products. The purpose of HASS is to shake out manufacturing and component defects before shipment to our customers. It is an important element of our Quality Process and an integral part of the production process.
UNIPOWER has been using HASS successfully for over 17 years and has developed a significant amount of expertise in determining the best screening profiles specific to high-density power supplies and systems.
The HASS Profiles designed and used by the company include low temperature, or -15 degrees Centigrade turn on and power cycling, rapid temperature rise while under power to +55 degrees Centigrade, high temperature turn on and power cycling, and two 7 minute vibration cycles at different temperatures. The most used profile runs 30 minutes.
The ultimate goal is to find out problems long before our customers find them and HASS is a much better screen than the typical 4, 8, 12 or 24 hour burn-in process used by most power supply manufacturers today.
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