What are the COB LED welding processes?

COB (Chip-on-Board) LED represents an LED packaging technology in which multiple LED chips are mounted on a single circuit board, enabling high brightness and compact design. Soldering is a critical step in the COB LED manufacturing process, and there are different soldering processes depending on the specific requirements and constraints of the application. Here are some common soldering processes used for COB LEDs:

Reflow Soldering: This is a common process used to solder COB LEDs to their circuit boards. In reflow soldering, solder paste is first applied to the PCB pads, and then the COB LED is placed on top of the solder paste. The PCB with the LEDs is then heated in a reflow oven to melt the solder paste and create a strong bond between the LEDs and the PCB.

Wave Soldering: Wave soldering is another method used to solder COB LEDs. In wave soldering, a PCB with a COB LED is passed through a wave of molten solder that wets the exposed copper pads and creates a bond between the LED and the PCB.

Hand soldering: For small-scale production, COB LEDs can be connected to the PCB by hand soldering. In this process, operators apply solder paste or flux to PCB pads, then manually place COB LEDs on the pads before heating the solder with a soldering iron.

Thermocompression: Thermocompression is a process that involves heating a pair of metal rods and pressing them against a solder joint, melting the solder and forming a bond. This process is especially useful for soldering small components, including COB LEDs.

In general, the soldering process of COB LEDs requires careful control of temperature and soldering time to avoid damage to the LEDs or PCB. Manufacturers typically follow strict quality control procedures to ensure that the soldering process is optimized for the specific LED package and application.

Shenzhen Aihongyang Lighting Co., Ltd. is a high-tech energy-saving company specializing in the production of COB LED planar light sources. The company has 6 automated production lines with a daily output of 400K. The main advantageous products are LED lighting matrix packaging and LED lighting lamps. The company relies on LED With many years of experience in LED application in the electronic packaging industry, we have a production team developed by experts, masters and senior engineers. Products and services, dedicated to the application of LED T5, T8, T10 fluorescent lamps, LED ceiling lamps, LED bulb lamps, LED spotlights, LED downlights and other lamps; dedicated to LED light sources and products with low light decay and long life services. Continuous innovation in LED application products. The enterprise adheres to the principle of "integrity and sustainability", treats products with monographs, treats customers with sincerity, and acts as a model of honest management with the determination to build a century-old enterprise. Realize the perfect combination of the company's planar light source and traditional lamps, and contribute high-quality and low-cost products to the LED industry.