The Industry 4.0 initiative targets the digitalization of design and manufacturing
processes. The aim of the Delphi4LED project is to trigger this transition in the
solid-state lighting industry by developing testing and modelling methodologies aimed
at multi-domain characterization of LED based products. The multi-domain model sums
up the following parts: the electrical and optical domain is based on semiconductor
physics, for the latter the key is the balance of diffusion and recombination effects
realistically representing the low-current and high-current decay of efficiency. The
geometry domain defines the thermal boundary and supposed to be temperature independent.
For the thermal domain compact modeling and model order reduction are discussed; the
suggested model is based on the one previously proposed in DELPHI project. Finally
a new JEDEC standard is proposed encompassing multiple thermal test environments for
a power LED which enable identifying case boundaries.
