Good signal integrity means that the signal can respond with correct timing and voltage level values when needed, when we are clone a PCB Board, Conversely, when the signal cannot respond normally, a signal integrity problem occurs. Signal integrity problems can cause or directly lead to signal distortion, timing errors, incorrect data, address and control lines, system malfunctions, and even system crashes.
Signal integrity problems are not caused by a single factor which can be solved by pcb board reverse engineering, but in board-level design. Caused by a variety of factors. IC switching speed, incorrect layout of termination components, or incorrect PCB board rewiring of high-speed signals can all cause signal integrity problems. The main signal integrity issues include: delay, reflection, synchronous switching noise, oscillation, ground bounce, crosstalk, etc.