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ACCELERATED RELIABILITY TRAINING
The famous How-To Seminars on Accelerated Reliability that teachers, engineers, and managers have been speaking about.
Hobbs Engineering was established in 1978 by Dr. Gregg K. Hobbs, who holds 14 patents for various inventions that test the durability of product design. Over the past 30 years, he has gathered a select group of specialists in the various aspects of Accelerated Reliability, who provide training seminars for companies as varied as Boeing, Johnson & Johnson, Raytheon, Hewlett-Packard, Apple, John Deere, Airbus, Otis Elevator, Cadillac, and all branches of the U.S. Department of Defense.
Dr. Hobbs invented and continues to enhance HALT (Highly Accelerated Life Tests) and HASS (Highly Accelerated Stress Screens). These techniques use severe conditions (including vibration, freezing and extreme heating) to test for weaknesses in design. The breakdowns and parts failures that will occur after several years in average conditions, happen in a matter of minutes or even seconds using HALT and HASS, so designers and manufacturers can find problems and fix them quickly.
What's the difference between HALT and HASS?
HALT are run during the design phase of a program to find design weaknesses and eliminate them. Any stress that exposes design weaknesses that would show up in the normal environments is suitable even if these stresses do not occur in the normal environments to which the product will be exposed. This is due to the crossover effect.
HASS are run during production in order to find process problems such as poor solder joints. Again, time compression techniques and the cross over effect are employed to speed the process and to reduce costs. Tests called Safety of Screen are run to prove that the HASS profiles leave enough life in the product.
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