Current Position Homepage Online Q&A 你好，能帮忙解释一下为什么我们在别家做出来的PCB总是有点弯弯的吗？板子是2层板，铜厚是2盎司的，尺寸是500*600mm左右，焊盘是喷锡的。

你好，能帮忙解释一下为什么我们在别家做出来的PCB总是有点弯弯的吗？板子是2层板，铜厚是2盎司的，尺寸是500*600mm左右，焊盘是喷锡的。

叶子 2276 211 2023-10-19

Answer by Customer Service

你好，

根据我们的经验分析，PCB板弯板翘有以下原因：

1，PCB原材料---覆铜板品质不过关。现在市面上很多不知名的板材品牌，请特别注意。

2，PCB设计成了阴阳铜，即一面铜面积多，另外一面铜面积少，两面铜面积相差过大。

3，异型结构的PCB，拼版设计不合理，贴片过回流焊后出现板弯板翘。

4，元件太重，插件焊接后出现板弯。

以上是常见的PCB板翘形成问题，具体情况可以咨询我们工程师。

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