Life test is an electrical stress test that typically employs voltage and/or temperature to accelerate the appearance of wear-out reliability failures in a device. The objective of life testing is to evaluate whether failures caused by wear-out are likely to occur during the product lifetime and thus to estimate compliance of the device with the long-term reliability requirements
The general specification for hybrid microcircuits (MIL-PRF-38534) details the qualification and testing requirements for non-hermetic packages for military and space applications, and the MIL-PRF-38535 proposed class Y monolithic microcircuits for non-hermetic space level.
Is an electrical stress test that typically employs voltage and/or temperature to accelerate the appearance of latent reliability defects in a device. The objective of burn-in is to eliminate all potential failure likely to occur at the early phase of the product life time (also called Infant Mortality Failure). It can easily be observed in a typical reliability bath tub curve as shown below.
These diodes have been designed for harsh environment space applications such as inner Solar System exploration probes. More specifically these diodes are being tested to be the blocking diodes of the solar panels for the Bepi Colombo mission.
Solutions offered by Alter Technology Laboratories
COTS and PEMS Qualification
Upscreening / Upgrading
Evaluation of New Products
Engineering and Consultancy
Parts Procurement Management
During the Evaluation phase, components/technologies can be expensively characterized and margins determined.
If the evaluation is successful we can then proceed with Qualification, on components produced strictly as defined in the final PID (Process Identification Document) and from a given lot (actually, the first production lot).
Once qualified, the component is listed in the QPL (Qualified Part List).
Environmental testing provides a useful tool for evaluation, qualification and screening of EEE components for high-reliability applications.
Various types of stresses can be applied to the products in a controlled manner thus allowing to accelerate the appearance of latent defects and consequently to assess the ability of the products to meet project requirements