What are the differences between LED solder paste and ordinary solder paste?

LEDSpecialized solder paste, as the name suggests, is specifically used inLEDSolder paste in the industry. People in the electronics industry should all know that solder paste is an indispensable soldering material in the production process of electronic devices. Most of the component patches are soldered out with solder paste. SoLEDWhat are the differences in performance between solder paste and ordinary solder paste? Now, the solder paste manufacturer will share it with everyone.

LEDThe difference between solder paste and ordinary solder paste:

1Tin powder particlesLEDThe printing of chips is usually of high density and narrow spacing, and the opening size of the template is relatively small. Small-particle alloy powder should be selected; otherwise, it will affect the printability and demolding property.

2Thermal conductivity: Taken into considerationLEDThe chips are relatively small. Additionally, they are usually densely printed in a small area or use high powerLEDWhen the chip is unfolded for packaging, heat dissipation becomes a challenge at this point. IfLEDThe thermal energy formed cannot be conducted to the substrate in real time, which will also cause light attenuation. ThereforeLEDThere are relatively high requirements for heat dissipation performance.

3Electrical conductivity: Generally speakingLEDAll the light strips are powered by constant voltage power supplies (DC switching power supplies), and it is necessary to maintain the stability of the voltage. The reason why the conductivity of the solder joints must be extremely excellent is that otherwise it will cause unstable voltage. YesLEDThe lamp generates an impact.

LEDSolder pasteThere are also some other differences determined by various application scenarios, such as thixotropy, solder paste viscosity, etc. And the above requirements areLEDNecessary. BasicallyLEDThe biggest difference between solder paste and ordinary solder paste. Of course, ordinary solder paste does have these characteristics, butLEDThese several properties of solder paste are more prominent and its performance is relatively higher.