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InterviewSolution
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Why Power Stripes Routed In The Top Metal Layers? |
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Answer» Power routes generally conduct a lot of current. In order to REDUCE EFFECT of IR drop, we need to MAKE these routes LESS resistive. Top metal layers are thicker and OFFER lesser resistance. This helps to reduce IR drop. Power routes generally conduct a lot of current. In order to reduce effect of IR drop, we need to make these routes less resistive. Top metal layers are thicker and offer lesser resistance. This helps to reduce IR drop. |
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