请教几个电源走线的问题
时间：10-02
整理：3721RD
点击：
1.电源线VDD和GND要不要各用一层金属走?
2.电源线用顶层金属走好还是METAL1走好?
3.直接用guardring走线有没有要注意的地方?
谢谢各位指教！
2.电源线用顶层金属走好还是METAL1走好?
3.直接用guardring走线有没有要注意的地方?
谢谢各位指教！
恩，同问
VDD 和 GND最好分开在不同的层
一般信号线走表层，VCC GND在内层
IC layout
same supply plane, between VDD and GND more capacitor is good for noise BYPASS.
1, So same layer is good.
2, More layers are good for IR drop.
3, Your guarding metal is hot, general my guarding is cool (without return current)