Placing of a decoupling capacitor at the top of your PCB with the MCU or at the bottom.

Which is more better and why, placing of a decoupling capacitor at the top of your PCB with the MCU or at the bottom. @PCB & Analog
5 Replies
electro_coco
electro_coco2mo ago
Placing them close in better with wide tracks short lengthed You can place them on bottom as well in same situation
electro_coco
electro_coco2mo ago
I prefer top mostly but sometimes bottom is ok
Chimmuanya Okere
It won't affect the signal voltage if placed far
electro_coco
electro_coco2mo ago
It will effect if far decoupling caps are local power storage for the mcu farther the power storage more noise injected
Joseph Ogbonna
Joseph Ogbonna2mo ago
Place your your cap as close as possible. If it fits at the top or bottom fine. But let it not be far from each other.
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