PCB lamination machine

The PCB lamination machine is a key device in the printed circuit board manufacturing process, used to tightly combine multiple layers of copper foils, prepregs, and insulating materials into a complete circuit board structure. Here is a detailed introduction to the PCB lamination machine:

Main Types and Features
Hydraulic Lamination Machine: It applies pressure through a hydraulic system, with a maximum pressure of up to 500 tons. It has the advantage of stable pressure, suitable for laminating heavy copper boards (＞3oz) and multi - layer boards, and is often used in the production of consumer electronics boards. However, it takes up a large area and has high energy consumption, consuming about 30 kWh per hour.
Vacuum Lamination Machine: Its core technology is to evacuate to - 90kPa, which can effectively eliminate inter - layer bubbles and improve lamination quality. After a factory used it, the delamination rate dropped from 8% to 1%. It is suitable for high - frequency and high - speed boards, HDI boards, and other products with high requirements for flatness.
Servo Lamination Machine: It uses a servo motor to adjust the pressure in real - time, with an accuracy of up to ±0.5%. It supports multi - stage pressure curves and can be precisely adjusted according to different lamination process requirements. After a high - end carrier board factory adopted it, the yield of 0.1mm micro - hole copper filling increased by 25%.
Autoclave: It is mainly used for special processes such as metallized hole lamination and ceramic substrate packaging. The working temperature can reach 300℃, and the pressure is maintained at 10 - 15MPa. It is suitable for aerospace - grade multi - layer boards and other products with extremely high requirements for the lamination process.

Key Components
Heating System: Usually, it adopts the hot - oil circulation heating method. For example, the lamination machine of Lianjie Machinery Co., Ltd. uses hot - oil as the medium and heats it through a hot - oil boiler to achieve uniform heating. The heating temperature accuracy is a key indicator. The industry standard is ±1℃, and high - end equipment can reach ±0.5℃.
Pressure System: It includes the hydraulic system, servo motor system, etc., used to provide stable and accurate pressure. The hydraulic system can provide greater pressure, while the servo motor system can achieve more precise pressure control and adjustment. Pressure uniformity is also important. Generally, pressure sensors are placed at the four corners of the platen, and the deviation should be ＜5%.
Vacuum System: For the vacuum lamination machine, the vacuum system is a key component. Its function is to extract the air in the lamination chamber to form a vacuum environment. The vacuum - holding ability is an important parameter. A leakage rate ≤ 5Pa/min is the standard for vacuum lamination machines.
Control System: It mostly adopts a programmable control method, such as PLC control, equipped with a computer and a color screen, used to precisely control parameters such as pressure, temperature, and vacuum degree, monitor the lamination process in real - time, and perform data recording and analysis.