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(anodization)     (Aluminum Anodic Oxide,AAO)   LED      LED       .  LED  //        .      LED     LED    . ,        AAO    (heat spread) . , AAO        DBC(direct bonding copper) (seed layer)     .     AAO    1.18~1.45 kgf/cm  peel strength  .Abstract: A lot of various researches have been going on to use heat spreader for LED module. Nano porous aluminumanodic oxide (AAO) applied LED, which is produced from anodization, is easy and economically advantageous.Convensional LED module is consist of aluminum/adhesive/copper circuit. The polymer adhesive in this module is usedas heat spreader. However the thermal emission of LED component is degraded because of low heat conductivity ofpolymer and also reliability of LED component is reduced. Therefore, AAO in this work was applied to heat spreaderof LED module which has higher heat conductivity compare to polymer. Bonding strength between AAO and coppercircuit was improved with Ti/Cu seed layer by copper sputtering process (DBC) before the bonding. And this coppercircuit has been fabricated by electro plating method. Peel strength of AAO and copper circuit in this work showed rangebetween 1.18~1.45 kgf/cm with anodizing process which is very suitable for high power LED application.Keywords: LED module, heat spreader, AAO, anodizing process, peel strength

Peel strengths of the Composite Structure of Metal and Metal Oxide Laminate