集成电路（版图）中的 pitch 是什么含义？什么意思？

Pitch跨距，脚距，垫距，线距，中距Pitch纯粹是指板面两“单元”其中心间之距离，PCB业美式表达常用mil-pitch，即指两焊垫中心线跨距mil而言。中距Pitch与间距Spacing不同，后者通常是指两导体间“隔离板面”，是面积宽度而非长度。

pitch=line+space

minmum line or space determines photo &etch's capability. Different pitch, photo characteristic is different, different pitch, etch bais is different.

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