Impedance Issues

Article Abstract Controlled impedance is the backbone of high-speed PCB signal integrity. Uncontrolled or out-of-tolerance pcb impedance issues frequently trigger signal reflection, overshoot, undershoot, ringing, closed eye diagrams, and even intermittent system crashes or data transmission errors. These anomalies stem from three core dimensions: design calculation errors, substrate material dielectric constant deviation, and PCB manufacturing process drift….