Abstract

FERNANDEZ LABRADA, Diego de los Ángeles; GUERRA BLANCO, Ernesto Alejandro; CASTRO FERNANDEZ, Miguel  and  CESPEDES FERNANDEZ, Alexander. Failure modes and failure mechanisms of LEDs used in lighting. Energética [online]. 2022, vol.43, n.3, pp. 90-98.  Epub Nov 07, 2022. ISSN 1815-5901.

Due to the increasing use of LEDs in lighting systems, the LEDs reliability evaluation is a vitally important issue in the lighting industry, and consequently, the understanding of their failure mechanisms and failure modes are also. Although the construction process of LEDs is similar to other microelectronic devices, there are materials and functional requirements that make their failure modes and mechanisms different. This paper presents a review of research on the failure mechanisms and failure modes of LEDs used in lighting systems. This paper provides a basis for understanding the reliability issues of LEDs, as even the reliability information provided by LED manufacturers is not sufficient for users of this technology.

Keywords : LEDs used in lighting; Reliability assessment; Failure mechanisms; Failure modes; Lighting sources.

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