关键词: 金属模板, 激光切割, 表面贴装

Abstract: Solder printing stencils are widely used in surface mounting technology of printed circuit boards and ceramic boards, in which laser cutting is always applied to process printing stencils. Due to the large heating effect of green laser, metal stencils would be distorted which is caused by heat stress during processing, making metal stencils cannot meet solder printing. Negative influence of heating effect of green laser can be reduced via reasonable parameter optimization. As a result, relative flat metal stencil with low roughness notch is obtained, which can satisfy demands of high quality solder printing.

Key words: metalstencil, lasercutting, surfacemounting