Quality and Reliability in Solid-State Lighting

Quality and Reliability in Solid-State Lighting: Qua Vadis?

Vos, T. (Philips Lighting Research)
den Breeijen, P. (Philips Lighting Research)
van Driel, W.D. (TU Delft Electronic Components, Technology and Materials; Philips Lighting Research)

van Driel, Willem Dirk (editor)
Fan, Xuejun (editor)
Zhang, Guo Qi (editor)

2018

In the past 4 years we have witnessed a change in quality and reliability to make the marked introduction of solid-state lighting (SSL) successful. LED penetration levels have reached values of 10–30%, depending on the application. The number and variety of LED packages and, thus, associated LED-based products, have significantly increased in the past years. Consequently, new processes and new materials are introduced which will introduce a new series of new and unknown failure modes in SSL products. The understanding of these failure modes is better understood, and the number has grown to beyond 50. The fingerprint is changing to failures that are due to interactions between components. First exercises with system level acceleration tests are presented, but it is important to derive acceleration models for these tests. Advanced reliability prediction capabilities are needed including algorithms and tools that couple the multi-physic and multiscale behavior of the SSL failure modes. The shift toward services will force the lighting industry to develop these capabilities in order to better address lifetime and reliability. Connected lighting will bring big data from live connections that can be used to determine the degradation level of the system. Both trends, service and connected, will bring yet another huge change in mind-set in the lighting industry when in concerns reliability: detailed understanding of failure mechanisms, usage scenarios, technology, and design will come together.

LEDs
Failure modes
LED penetration
Acceleration
Services

http://resolver.tudelft.nl/uuid:613c2bb6-3f69-44c7-b8ad-868684db785e

https://doi.org/10.1007/978-3-319-58175-0_1

Springer, Cham

2021-05-28

978-3-319-58174-3

Solid State Lighting Reliability Part 2: Components to Systems (1)

Solid State Lighting Technology and Application Series, 2196-4203, 3

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Institutional Repository

book chapter

© 2018 T. Vos, P. den Breeijen, W.D. van Driel