NotesUESTC/硬件开发笔记/Altium Designer/Altium Designer必要设置.md

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# Altium Designer必要设置
一、Altium Designer的层叠设置
如下图所示,在设计(Design)选项中可以找到Layer Stack Manager其描述如下图所示
<img src="E:\技术武器库\技术开发笔记\硬件开发笔记\Altium Designer\Image\PCB_LayerStackSetting.jpg" style="zoom: 33%;" />
| 层次描述 | 作用 | 注解 |
| ------------ | ------------------------------------------------------------ | ------------------------------------------------------- |
| Top Overlay | Top Overlay是指PCB板顶部的覆盖层通常包括PCB板的标识、标志、文字、线条和图形等信息。<br/>Top Overlay层通常是由PCB设计师在设计软件中添加的用于标识和说明PCB板上各个元件、电路和功能的位置和用途。 | 一般是需要在最顶层或者最底层。 |
| Dielectric | 这个层是绝缘层,用于不同层之间绝缘 | |
| Signal & Gnd | 信号层或者地层 | 上图稚晖君把GND放在第三层如果有射频可以考虑放在第二层 |