Next Generation SMT LED for Automotive Signalling and Forward Lighting FunctionsMichael Zitzlsperger, JoachimReill
Abstract
LEDs meanwhile are established in automotiveexterior lighting applications, including fullLEDheadlamps.ItnowbecomesimportanttooptimizetheLEDs’functionalityforawiderusageinfunctionsandopticalsystems.FurthermoreachievinghighsystemreliabilitybytheuseofdifferentPCBsubstratematerialsenablesahighflexibility.ThispaperwilldiscusstechnicalsolutionsonLEDleveltofulfiltheseimportantfactors,withfocusonRth,thermallymatchingpackageandPCB,smalloutlinedimensionswithminimalpackageheightandahighcontrastratio of lightemitting and adjacentarea. |