[PCB Exposure] Application of UV LED Technology in PCB Exposure

With the advent of UV LEDs, UVLED technology began to gradually apply in various industries, UV LED curing technology has brought about changes in PCB exposure, because there are many advantages such as low energy consumption, high performance, environmental protection, etc. UV LEDs, UV LED Technology is applied to the field of PCB exposure. In PCB exposure, the light source characteristics of the exposure light directly affect the quality of the exposure and the effect of exposure. The application of UV LED in PCB exposure is mainly to use ultraviolet exposure Ultraviolet light reacts to the sensor -sensitive dry film to generate reaction. The energy consumption of traditional lamps in PCB exposure is very high, and the service life is very short, only 800 hours, and the lamp tube needs to be preheated before each use. The actual effective working time of the PCB exposure tube is less than 800 Hour. The traditional mercury lamp will produce a lot of heat and infrared rays during the use of glowing, and it is easy to destroy the coating, so there is a certain distance in the process of use, so as to reduce the efficiency of its use efficiency. The application of UV LED in PCB exposure, compared with traditional mercury lamps, has the advantages of high luminescence, long life, and low energy consumption, which has greatly interested in domestic and foreign exposure machine manufacturers and make them develop and develop them. Taking advantage of the new UV LED technology. Although the light power of a single UV LED is not high, in practical applications, its light sources can achieve very high ultraviolet light intensity through special optical treatment and structural combination. It can be used in PCB exposure. The use of scanning exposure methods can effectively reduce the size area of the UV LED light source, and then solve the heat dissipation problem of UV LED. The application of UV LED in PCB exposure has many advantages such as uniform distribution, stability, and decrease in equipment costs, and the performance of various performances is higher than the traditional exposure process, so it can meet the PCB exposure process.