Bypass Capacitor and Decoupling Capacitor Application in Cloning PCB Board Gerber File

When Cloning PCB Board Gerber File, both analog devices and digital devices need these types of capacitors, and both need to connect a capacitor close to their power supply pins. This capacitor value is usually 0.1µF. Another type of capacitor is required on the power supply side of the PCB board cloning, usually the value of this capacitor is about 10µF.

The location of these capacitors is shown in above Figure. The capacitance range is 1/10 to 10 times the recommended value. But the pin must be short and as close as possible to the device (for 0.1µF capacitor) or the power supply (for 10µF capacitor).

Adding bypass or decoupling capacitors on the circuit board and the location of these capacitors on the board are common sense for digital and analog circuit board reverse engineering. But interestingly, the reasons are different.