LED Pressure Welding
May 15, 2021
The purpose of pressure welding is to lead the electrode to the LED chip to complete the connection of the inner and outer leads of the product.
The pressure welding process of LED has two types: gold wire ball bonding and aluminum wire bonding. The process of aluminum wire bonding is to first press the first point on the electrode of the LED chip, then pull the aluminum wire onto the corresponding bracket, press the second point and then tear the aluminum wire. The gold wire ball bonding process burns a ball before pressing the first point, and the rest of the process is similar.
Pressure welding is a key link in the LED packaging technology. The main things that need to be monitored in the process are the shape of the pressure-welded gold wire (aluminum wire), the shape of the solder joint, and the tensile force.
