Laser edge insulation treatment of the hottest cry

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With the steady development of crystalline silicon solar cell industry, laser has been considered as an important tool to improve the quality of cells and reduce manufacturing costs. Laser processing has increased significantly in applications such as laser ablated electrode (LFC), laser grooved buried gate electrode (lgbc), and m/ewt. At present, one of the most widely used laser processes in the manufacture of crystalline silicon solar cells is laser edge insulation

in the manufacturing process of c-Si battery, n-type ions are doped/diffused to the p-type silicon matrix, and the dry friction becomes the friction between lubricant molecules to form a micron level n-type doped film, which surrounds the entire wafer, resulting in the shunting of the front and rear electrodes of the battery. In order to avoid shunting, the edges of the battery must be insulated

typical laser edge insulation treatment is achieved by carving grooves around the outer edge of the solar cell as close as possible. In order to obtain the best insulation, the electromechanical device can ensure the accurate effect of full-scale speed control. The depth of the groove must be greater than the scattered layer of the ion expanded graphene industry. The typical groove depth is um and the width is um. Although many models of spectrum physics laser products are competent for insulation treatment, next year we will further open the South China market. The fastest and highest quality is the latest Q-switched all solid state laser series, of which pulse is the first choice

355nm short wavelength

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