IMD Versus SMD
IMD (Integrated Mounted Device)LED were recently introduced to the market, as a technology between SMD (Surface Mount Device) and COB (Chip On Board) LEDs, it has advantages and disadvantages, we did see many customers bring their modules with dead pixels to repair.
Difference of IMD and SMD modules
IMD modules have LED chips mounted on the PCB board, without masks.
SMD modules have masks to cover the solder pins
Repairing IMD modules
It's pretty much the same way as do SMD modules, solder, heat gun are used, the important things to attention is:
The IMD LEDs have 8 pins, and the pins are totally under the chip, which are not direcly exposed to heat gun air, to solder and desolder requires higher temperature;
There are 8 pins, the solder plate must be clean and flat to ensure the chips stay on the board at heat air flow;
Temprature and timing of the heat gun is key to repair
Our Methods
With years experience and innovation, we have developed an efficeint way to repair the IMD modules with cold solder, missing pixels, deam modules, ...
We pre heat the PCB board to a certain temprature;
We heat both surface of the PCB board;
We use innovative jigs at operation;
Our technology works on any modules with hidden solder pins.
If you have such modules with IMD LEDs or SMD1515 less, contact us, jeff.mrled@gmail.com, we are here to help.