![[Pasted image 20241217122423.png]] # PCB Trace Width Calculators 1. https://www.elektroda.com/calculators/trace-width-calculator-external 2. https://www.digikey.com/en/resources/conversion-calculators/conversion-calculator-pcb-trace-width # Calculate PCB Trace Width – ATM Quick Take | Digi-Key Electronics https://youtu.be/Ay_-QSouxa8 # What Do You Know About Copper Weight? | PCB Knowledge https://youtu.be/8duCjDoajqE - Copper Weight is some weight of copper rolled to a uniform thickness of area 1ft x 1ft - e.g. a 1ft x 1ft x 1oz piece of copper will have a foil thickness of 1.37 mils or 0.0348 mm - Standard copper weights are 1-3 oz/ft2 - High Current designs need thicker copper weights. - High Signal Integrity need thinner copper weights to minimize inductive effects - Exceeding 3oz is considered "heavy copper" - designed for high current loads & thermal management - Heavy copper has different design rules - Increased minimum track spacing - Signal Degradation and Overheating can result from too much or too little copper - Ensure vias are big enough to carry high currents to minimize resistive losses - Heavy copper has higher surface tension, which affects solder mask adhesion - Leads to shorts & corrosion - Solder mask needs to be thicker to match.