Reliability and robustness

HALT and HASS tests

Ensure the robustness and reliability of your products

HALT (Highly Accelerated Life Test) and HASS (Highly Accelerated Stress Screen) tests are essential tools for enhancing the robustness and reliability of your products, while reducing design and manufacturing defects. These advanced methodologies enable manufacturers of electronic and electrical equipment to offer their customers better-performing, more mature and more reliable products.

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Operator monitoring the equipment to be reliability tested

What are HALT and HASS tests?

HALT testing: Exploring the limits of your products

HALT testing involves subjecting your products to a series of thermal and mechanical tests right from the initial design phase. The aim is to quickly detect design weaknesses and identify potential defects that could arise during qualification or after marketing.

Key benefits of HALT testing:

Early identification of design weaknesses.
Improved equipment robustness.
Reduced development times.
Accelerated time to market.

HASS testing: Validate your manufacturing processes

HASS testing, carried out in production, allows you to subject all or part of your equipment to thermal and mechanical stresses with severity levels derived from the results obtained during HALT testing. These tests highlight defects related to manufacturing processes and variations in component supply.

Key benefits of HASS testing:

Elimination of latent manufacturing defects.
Validation of manufacturing processes.
Improved reliability of delivered products.

What sectors are involved in these trials?

Consumer electronics, telecoms/IoT and industry

Early detection of design faults and improved robustness of electronic equipment before it goes to market or production.

Automotive, rail and marine

Accelerated ageing tests to validate the reliability of embedded systems and components subject to severe vibration and thermal stress.

Aeronautics, space and defence

Enhanced reliability of critical equipment in extreme environments, with simulation of anticipated wear using combined stresses.

Medical

Improving the reliability of devices subjected to intensive or critical use, by identifying latent faults or faults linked to component supply.

Key stages in radio frequency testing

A comprehensive approach to the product life cycle

HALT and HASS tests have a direct impact on the three phases of your products' life cycle, as illustrated by the bathtub curve model:

Start-up phase: Detection and elimination of early defects, resulting from design or manufacturing.
Maturity phase: Stabilisation of the failure rate, limited to incidents of use.
Wear phase: Identification of any weaknesses linked to the age or wear of components.

Measurable benefits for your operations

By adopting a strategy based on HALT and HASS tests, you can benefit from the following advantages:

Improved product quality and reliability.
Reduced development costs and time-to-market.
Fewer service calls.
Improved customer satisfaction.
Optimised design margins.

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Our equipment and capabilities for HALT and HASS testing

Our workshop is equipped with the most advanced technology to carry out HALT and HASS tests on your products.

HALT/HASS system: TYPHOON 3.0
- Useful volume: 1140 dm3
- Temperature: from -100 to +200 °C
- VRT: up to 60 °C/min
- Vibrations:
  - Frequencies from 10 to 10,000 Hz
  - Maximum acceleration: 60 gRMS

Why choose Emitech for your HALT and HASS tests?

With decades of experience in analysing and optimising product reliability, Emitech is the ideal partner to help you implement HALT and HASS testing. Our experts work closely with your teams to ensure that your products undergo the test sequences required to optimise their reliability and robustness.

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Needs

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Ready to improve the reliability of your products and reduce early defects? Contact us today for a personalised quote and put your products on the road to excellence.

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