Sigrity 2023 software for simulation and signal integrity in high-frequency circuits. With the advancement of digital processing technology, the need for faster processing has grown increasingly, Prdzashgrhayy that necessarily needs to work faster circuits with higher processing speeds and higher frequencies are located. By increasing the speed signals for accurate speed up the signals on routes that are mounted on boards PCB or boards laminated issues and new problems arises in the case of Field, gripped engineers will be events such as interference, distortion and noise and signal integrity at high frequencies cause to be subject to threats.