PCB Design - Advanced Routing TechniquesWhich of the following is the correct way to define a guard trace in a PCB layout tool?ADraw a trace overlapping the sensitive signal and assign it to the signal netBDraw a trace around the sensitive signal and assign it to the power netCDraw a trace around the sensitive signal and assign it to the ground netDDraw a trace disconnected from any net around the signalCheck Answer
Step-by-Step SolutionSolution:Step 1: Understand guard trace assignmentGuard traces must be connected to ground to shield signals effectively.Step 2: Check trace placement and net assignmentDrawing around the signal and assigning to ground is correct; power or floating is wrong.Final Answer:Draw a trace around the sensitive signal and assign it to the ground net -> Option CQuick Check:Guard trace = ground net trace around signal [OK]Quick Trick: Guard trace must be grounded and surround the signal trace [OK]Common Mistakes:MISTAKESAssigning guard trace to power netOverlapping guard trace on signal traceLeaving guard trace unconnected
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