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      <title>【经验分享】四层PCB画板叠层与布线避坑总结</title>
      <link>https://mybesteda.com/discuz/forum.php?mod=viewthread&amp;tid=243</link>
      <description><![CDATA[四层PCB画板叠层与布线避坑总结

先放一张示意图，方便对照下面的内容理解布线思路。



一、叠层建议
1. 常见四层板建议优先考虑 Top / GND / PWR / Bottom 或 Top / GND / GND / Bottom，根据电源种类和成本做取舍。
2. 高速信号尽量贴近完整参考平面走线，不要让关键 ...]]></description>
      <category>PCB画板讨论区</category>
      <author>Antenna</author>
      <pubDate>Thu, 09 Apr 2026 01:01:22 +0000</pubDate>
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