Study on thermal performance of high power LED employing aluminum filled epoxy composite as thermal interface material
Thermal behavior of LED with metal filled polymer matrix as TIM was investigated. Al was filled into DGEBA polymer matrix and applied as TIM for LED heat dissipation. Comparison of filler to polymer ratio showed that TIM performs best at 50wt% Al. Also found that cured TIM performs better thermal characteristics than uncured TIM. Optical properties are crucial to determine thermal behavior of the LEDs under test.
thermal interface material optical properties filler dispersion silane pre-treatment light emitting diode thermal transient measurement