Title :
LED encapsulation and integration with Film Assisted Molding technology
Author :
Lingen Wang ; van Weelden, Ton ; Yuan, Cadmus ; Jia Wei
Author_Institution :
Boschman Technol. B.V., Duiven, Netherlands
Abstract :
Single LED package based on encapsulated leadframe provides a common electrical and thermal path with dramatic reduction of its thermal resistance. The specific LED packaging technology consists of a silver plated copper leadframe overmolded with a reflective white compound. This paper presents low cost molding process to mold the leadframe with bleed/flash free. With single/double films lining of the molded parts, film assisted transfer molding technology(FAM) provides easy release of the compound from the mold and keeps specific surfaces clear from the molding compound. The LED module based on the leadframe encapsulation and LED system wafer level integration can be easily reached with low cost by FAM technology to keep certain LED surfaces and sensor clear.
Keywords :
copper; encapsulation; light emitting diodes; silver; thermal resistance; thin films; transfer moulding; wafer level packaging; Ag-Cu; LED encapsulation; encapsulated leadframe; film assisted molding technology; film assisted transfer molding technology; low cost molding process; reflective white compound; silver plated copper leadframe; single LED package; thermal resistance; wafer level integration; Compounds; Films; Heating; Lead; Light emitting diodes; Thermal resistance;
Conference_Titel :
Solid State Lighting (ChinaSSL), 2013 10th China International Forum on
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-2249-9
DOI :
10.1109/SSLCHINA.2013.7177321