Why burn-in test of assemblies?

Reasons and requirements for the load limit test in the assembly of components

Why Burn-in testing?

The purpose of burn-in testing (also called limit load testing) is to test components, assemblies, or complete devices under sustained extreme conditions prior to the start of mass production and to identify parts that may fail prematurely (before their rated life).

The purpose of a rapid load test (also called burn-in test) is to determine the limit load of components, assemblies or complete devices in continuous operation. At CrossTEQ, the load capacity is tested during the burn-in test under extreme conditions, such as high operating frequency or current voltage for 48 hours without interruption.

The goal of burn-in testing is to identify parts that could fail prematurely (before rated life) prior to the start of mass production.




Test requirements and exam instructions for Burn-In Test at CrossTEQ.


Qualification

CrossTEQ ensures that personnel are properly trained in performing Burn-In Tests. Only regularly trained production personnel may perform burn-in testing (and functional testing as well as factory acceptance testing).

Test environment and precautions

CrossTEQ quality personnel (production manager and production engineering manager) maintain and implement work instructions, test environment guidelines, and any precautions for functional testing (especially for electrostatic sensitive equipment!).

Testing software

The test application software guides the tester through the various test steps and executes the automated test section where possible. The test application documents and creates digital test reports, which the tester must sign.

Reports

Deviations/defects are to be noted on the test report. Any corrective actions and the following regression tests shall be described in detail upon request of the test application software.

As per the supply agreement, CrossTEQ shall archive reports as part of the Device History Record (DHR). Each report must be traceable to the component by part identification number and serial number.  

Responsibility

Only after testing is successful, assembly of the assembly or device is completed. Our quality personnel perform the Quality Assurance (QA) buyoff for product release and confirm proper manufacturing, testing and reporting by electronic signature before delivery to the customer.

CrossTEQ applications and examples for limit load tests

Frequent acquisition of dark field images and generation of drift images with X-ray therapy imager

In this burn-in test, CrossTEQ tests a fully assembled radiotherapy imager over a 48-hour period. Dark field images are acquired and drift images are generated at regular intervals.

The aim is to detect early component failures and reduce the potential for errors in the field. The images are evaluated by the test software, which generates the test report based on them. After a one-minute waiting period to warm up the imager, the first two images are requested and processed. The drift image and the average drift value are displayed.

At CrossTEQ, we specialize in the demanding quality assurance of electrostatic sensitive assemblies and devices.

We assemble, test and adjust complex assemblies and highly sensitive microelectronics with permanently highest precision and reliability.

You might also be interested in

Odoo – Beispiel 3 für drei Spalten

Function testing of components and assemblies

Systematic testing of the basic function of all electronic components and their interaction.

CrossTEQ application example: Acquiring test images with radiation therapy imager 

Odoo – Beispiel 3 für drei Spalten

Finale Factory Acceptance Test (FAT)

To validate equipment operation and ensure that order specifications and customer quality and functional requirements have been met. 

Application example at CrossTEQ:
Final acceptance test (X-ray test) for the acquisition of X-ray test images with radiotherapy imagers

CrossTEQ AG, Frau Hanna Eberli December 1, 2022
Share this post
Our blogs
Archive