Signal transmission occurs at the moment when the signal state changes, such as rise or fall time. The signal passes a fixed time from the driving end to the receiving end. If the transmission time is less than 1/2 of the rise or fall time, the reflected signal from the receiving end will reach the driving end before the signal changes state. Conversely, the reflected signal will reach the drive end after the signal changes state. If the reflected signal is strong, the superimposed waveform may change the logic state. The following is about 12 Layer Taconic High Frequency Board related, I hope to help you better understand 12-Layer Taconic High Frequency PCB.
