The product feature will introduce some parameters of laser pointer .
Found to affect the welding quality of the other claims of the reasons for the changes due to further improve the reliability of welding quality. At room temperature or under special conditions, welding, welding equipment installation simple. For example, the laser through the electromagnetic field, the beam does not shift; laser in a vacuum, air and a gas welding environment can, and can be glass or transparent material of the beam welding. The chip of this kind of laser pointer has the long lifetime.
Today, lasers have been widely used in solar cell production, such as pulsed Nd: YAG laser or a Nd: YVO4 laser for solar cell edge isolation. In solar cell production, through the silicon laser drilling, laser cutting, laser scribing to achieve electrical connection back, these methods was also considered feasible laser treatment. To implement this method, you need to use a high peak power and good beam quality of pulsed lasers. The carton package of laser pointer can protect laser pointer well.
Although the high-power semiconductor lasers can not achieve these parameters, but using a millimeter-focus compact continuous light source, high-power semiconductor lasers still has its advantages. The following description will focus on solar cell production in the field of laser applications, describes how it is implemented welding, recrystallization or drying function. All these applications have their thing in common - a few square millimeters in area could reach the target within the thermal value. In the production of PV modules, a single solar cells connected with each other through the solder electrical connections. Solder, the solder must reach a certain degree with the same time good electrical conductivity. The carton of laser pointer should be a little larger than laser pointer .
Heat input and its uncertain application of mechanical stress generated during the industry rarely used Kolben welding, but also tend to use induction brazing, hot air welding or brazing and other micro-flame soldering methods. For solar cells thinner (<200μm), in its production process, inexpensive silicon solar cell wafer handling its demands for higher and higher, should be reduced as much as possible in the treated Cheng Zhongjing round scrap rate and thermal stress. High-power semiconductor lasers for welding has many advantages, but these advantages for solar cell electrical connection is essential. This is a non-contact method is through space and time on the definition of heat input and to ensure that the solar cell itself to achieve the minimum thermal stress.
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