XFdtd supports TVS diodes in ESD testing simulations.

Transient EM/circuit co-simulation overcomes the limitations of using specialized solvers in isolation, enabling engineers to analyze device protection measures and more effectively eliminate ESD events.

Remcom announces an update to XFdtd® 3D EM Simulation Software, with transient EM/circuit co-simulation for electrostatic discharge (ESD) testing and support for transient voltage suppressor (TVS) diodes and spark gaps. XFdtd contains a number of features for simulating the ESD testing process, allowing engineers to pinpoint components susceptible to ESD damage and optimize ESD mitigation prior to trial-and-error testing on a physical prototype. Building on these capabilities, the new release supports the import of TVS diode netlist files and inclusion of their nonlinear behavior in a finite-difference time-domain (FDTD) simulation.

TVS components are critical to the protection of sensitive PC board components, and the ideal simulation method combines a transient nonlinear circuit solver with a full-wave electromagnetic solver. XFdtd simulates non-destructive testing using a virtual prototype that includes the physical layout of the TVS components to enhance accuracy, simultaneously capturing all electromagnetic phenomena from the 3D CAD geometry as well as the complex nonlinear behavior of the circuit model in a single time-domain simulation. Various diode placements can be simulated to determine a successful circuit layout and strengthen the ESD protection of the final device.

Transient EM/circuit co-simulation overcomes the limitations of using specialized solvers in isolation, enabling engineers to analyze device protection measures and more effectively eliminate ESD events. By resolving ESD vulnerabilities earlier in the design process, certification setbacks can be avoided.

For more information on the latest release of XFdtd, please visit Remcom’s website. XFdtd users without an active Remcom Professional Support contract can upgrade to the latest version by contacting sales.

About Remcom: Remcom provides innovative electromagnetic simulation and wireless propagation software for commercial users and U.S. government sponsors. Remcom’s complementary products work together to provide complete end-to-end design and analysis of complex devices in real world scenarios, simplifying EM analysis for a wide variety of applications including antenna design and placement, 5G MIMO, outdoor and indoor mmWave planning, mobile device design, biomedical, microwave, automotive radar, and more. Remcom is committed to its customers’ unique needs, offering flexible licensing options for installations of all sizes as well as custom engineered solutions.

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