Glossary

Thermal shock

A thermal shock chamber is used to subject products to ultra-rapid temperature variations in order to test their resistance or service life.

CLIMATS thermal shock chambers are equipped with 2 test cabinets (one hot and one cold) – or 3 test cabinets (one hot, one ambient and one cold) – and a mobile gondola containing the products.

Burn-in

Burn-in is a sequence of thermal, climatic, electrical and/or mechanical stresses applied to an electronic component or board in production.
The aim of burn-in is to eliminate early-stage defects in an electronic component or board (intrinsic to the components or the consequences of the production process), by revealing failures in the factory rather than in operation.

There are two types of burn-in:

• • Burn-in, which involves subjecting materials to a constant hot temperature for a defined period of time.

• • HASS(Highly Accelerated Stress Screening) is the process of subjecting a component or electronic board to aggravated stress to eliminate its weaknesses and thus increase its reliability.

Environmental test chamber

An environmental test chamber is a volume in which different environmental conditions are recreated in order to test the resistance and/or reactions of products to these constraints.
The environmental test chamber can recreate hot, cold, humid or “seaside” (salt fog) atmospheres.
Combined with a vibrating pot, an environmental test chamber can generate vibration tests, combined with temperature tests.
The volume of an environmental test chamber can vary from 55 liters to 1400 liters, as standard, and to 100 ^m³ in special cases.

Environment simulation

The purpose of environmental simulation testing is to establish the ability of products or materials to operate within specified limits of temperature, pressure, humidity, mechanical stress, electrical stress or other environmental conditions. The ability to withstand certain combinations of these conditions, as well as storage or transport, is also assessed.