LED heat way

LED heat way

According to different types of packaging technology, the heat dissipation methods also different from all kinds of cooling way, and LED light the way for roughly can:

Cooling way explains:

(1). From the air cooling

(2). Heat directly by the System circuit board export

(3). The heat through gold line is derived

(4). If the eutectic and Flip chip process, through the heat through holes to system is derived and circuit board

Generally speaking, the LED grain (Die) to a gold line, eutectic or flip chip way in the base board links (Substrate of LEDDie) to form a LED chips (chip) and then LED chips will be fixed in the way electricity board System (System circuitboard). Therefore, LED the way for possible heat directly from the air cooling, or the grain substrate by LED to the system to the atmospheric environment.

Circuit board And by system circuit board to heat the rate of atmospheric environment based on the design of the light lamps and lanterns or system. However, the current stage of the whole system bottlenecks, most of the heat happened in will heat transmission to the grain from LED base board to system mainly circuit board. This part of the cooling way: one for may directly by grain base board heat to the system board, in this cooling circuit in the way, and its LED grain substrate materials scattered ability of heat that for quite important parameters.

On the other hand, LED the heat produced in the metal wire through electrode will also be to system circuit boards, in general, use gold thread way by the heat, and electrode by metal line itself is the slender geometry and limited; Therefore, recently have namely Eutectic (Eutectic) or flip chip (Flipchip engagement way, the design sharply reduce the length of the wire, and increase the cross section area, so a wire, wire electrode by LED to system of circuit board cooling efficiency will improve.

Through the above explanation, that the cooling way heat substrate materials and the choice of mode in the encapsulation of the grain size of the LED hot on the management of scattered extremely important a ring, post will be LED to heat boards do outline.

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