PCB is an indispensable component of modern electronic products. Before PCBA SMT processing, baking PCB is a very important process step.

The main purpose of baking

Remove moisture

PCB materials are usually hygroscopic and easily absorb moisture in the air during transportation and storage. Excessive moisture may cause "board explosion" during high-temperature soldering and damage the circuit board. Baking can effectively remove moisture from the PCB.

Prevent delamination

PCB may delaminate at high temperatures, especially in multilayer boards. Baking can effectively reduce this risk and ensure the structural stability of the board.

Improve welding quality

When soldering a PCB containing water, the moisture will turn into steam. If it is not baked in advance, when the PCB enters the soldering process, it will cause soldering defects such as pores and tin beads, which may easily lead to loose solder joints and affect the reliability of electrical connections. By pre-baking, the risk of solder bubbles can be reduced.

Baking process parameters

Temperature: usually set between 100°C and 125°C, and the temperature may be adjusted depending on the PCB material.

Time: Generally, the baking time is 4 to 8 hours, but the specific time also depends on the thickness and material properties of the PCB.

Environment: Baking should be carried out in a dust-free and dry environment to prevent external contamination.

Effects of Baking

Preventing Welding Defects

Effectively reduce problems caused by moisture during welding and improve product consistency and reliability.

Extending the Life of Boards

Reduce damage caused by thermal stress and extend the life of PCBs.

Improving Production Efficiency

The baked PCB is more stable in production, reducing the production of defective products and improving overall production efficiency.

PCB baking is an indispensable step in PCBA production. It not only ensures product quality and reliability, but also improves production efficiency. Understanding the role of baking and correctly executing

PCBAMake is a high-quality PCBA SMT processing factory equipped with advanced PCB baking equipment to ensure that we can provide you with high-quality circuit boards. Our professional process effectively removes moisture, prevents welding defects, and improves product reliability and service life. Choosing us means choosing quality and peace of mind.