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阿Q吧 > SMT,钢网厚度是怎么算出来的，我们使用的是芯片比较大，是6.5*6.5mm的，是贴在铜板上的，麻烦分析一下，谢

SMT,钢网厚度是怎么算出来的，我们使用的是芯片比较大，是6.5*6.5mm的，是贴在铜板上的，麻烦分析一下，谢

2025-03-31 06:18:54

推荐回答（1个）

回答1：

钢网开孔有两个原则：a，宽厚比大于1.5；b，面积比大于0.66
1.根据最小零件的宽度计算钢板的厚度；例如最小宽度是0.18mm，钢板厚度不能超过0.12mm
2.钢板厚度决定后根据面积比算开孔的尺寸；例如钢板厚度为0.1mm 开孔的尺寸不能小于0.25mm 0.25*0.25=0.0625 (0.25+0.25)*0.1*2=0.1 0.0625/0.1=0.625<0.66,

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