Yelo Limited, a leading employer in the STEM (Science, Technology, Engineering and Mathematics) sector in Northern Ireland has signed up to the STEM Charter to demonstrate its commitment to improving gender balance in the workplace.
Yelo Limited, a leading employer in the STEM (Science, Technology, Engineering and Mathematics) sector in Northern Ireland has signed up to the STEM Charter to demonstrate its commitment to improving gender balance in the workplace.
Carrickfergus based manufacturing company Yelo has donated £5,000 of matched funding to a humanitarian aid organisation to help with its work with refugees.
The cost of production burn-in ovens can initially seem like a significant expenditure but in the long term it can reduce warranty costs and help device makers maintain a positive company reputation to win repeat orders. The challenge of production burn-in is to achieve a high throughput of devices with accurate measurements at the lowest possible cost.
An overview of burn-in
To be commercially successful, optoelectronic devices need to be reliable. However devices fail due to defects which arise during the manufacturing process. Burn-in involves running components under a continuous period of operation under controlled conditions to identify infant mortalities (devices that fail very early in their use), and to stabilize operating parameters thus ensuring that every device shipped is up to standard. Manufacturers/suppliers of laser diodes must consistently provide quantitative assurances (test data) to prove the reliability of their devices. Having this reliability data is essential to device makers in winning repeat orders and can justify a premium on price.
In the previous article we looked at some of the key failure mechanisms for laser diodes. In this article we aim to uncover some of the more technical and specific aspects of the device that need to be taken into consideration at design level.