Does a Differential Pair Need a Return Plane?

A differential pair is any two transmission lines. When each transmission line has a return plane, its pretty clear how the differential impedance is related to the geometry. But what if there is no... [more]

From Smart Factory Automation to Digital Twin Standard: Ushering a New Era for Design and Manufacturing

The new IPC Digital Twin standard (IPC-2551) defines an interoperable framework in which thousands of applications from multiple sources work seamlessly together, providing the opportunity for... [more]

How to Fight Magnetic Noise Gremlins

Have you ever had a noise-sensitive circuit and tried to find the noise source? Even after you completely encased sensitive portions in all sorts of shielding, you still had noise? It’s very... [more]

The New SEMI SMT-ELS Standards Suite for SMT and PCBA Lines

With an estimated 80,000 SMTP lines in use standards are a lifeline for line operators and equipment and software developers worldwide. SEMI is developing a suite of standards for SMT and PCBA... [more]