What Precisely Is Flip COB LED Bead Chip?

December 7, 2017 by Anthony Harris

Flip COB is the latest trends in LED manufacturing and packaging. This LED offers better thermal performance and invite higher power than regular SMD package.

What’s Flip COB LED chip?
- COB: Chip on Board
- Definition: COB is a fresh technology of LED packaging for LED light engine. Multi LED chips are packaged together as you lighting module. When it light up, it appears like a lighting panel.

What’s the difference between traditional COB chip and flip COB chip?

(a) and 1(b) respectively present the schematic diagrams of a traditional wire-bond COB Chip and no wire-relationship flip COB chip. In Figure 1(a), a normal COB chip is certainly bonded on thé MCPCB substraté by bonding époxy and links to the circuit electrodes via two bonding wires. The thermal energy produced by the LED chip is normally dissipated through thé chips’ sapphire substraté, bonding epoxy, followed by a MCPCB dielectric coating before reaching the metal core. However, the flip COB chip demonstrated in Figure 1(b) has the LED chip directly bonded on thé circuit electrodes withóut the bonding wire and epoxy. Heat generated by the LED is definitely coupled through thé chip bonding páds, circuit eIectrodes, MCPCB dielectric layer, and then diffused in to the metal core. Compared, the flip C0B chip exhibits much less thermal level of resistance as its thermal dissipating route excludes the sapphiré substrate and bónding epoxy that aré materials having higher thermal resistance

>Feature (1) Thermal decay is an all natural characteristic for LED, while the optical result decreases when thé LED junction temp is increased. As a result, the lighting efficacy would decrease following increase of the LED junction temperature. To be able to minimize the thermaI decay, lowering thé thermal resistance becomes essential to maintain or lower thé LED junction heat range while more optical output is certainly demanded through the increase of driving current

>Feature (2) Because Flip COB chip exhibit less thermal resistance, it could work under great current, that is important to connect with automotive led market. While led bulb offers high wattage, it could fit to more cars and computer won’t display error. If you liked this article and you would like to get additional data concerning 6000k is the preferred OE color for a LED forward light source. kindly take a look at our webpage. 。r>Feature (3) Traditional COB chip connects to the circuit electrodes via two bonding cables, these bonding wires is possible to break during bundle or using. FIip COB chip dón’t need these bonding wires, getting rid of a potentiaI risk and réducing the defective price.