EMC/Shielding/Grounding Techniques for Chip & PCB Layout - Web Classroom

Course 140

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Summary

This seminar discusses techniques for identifying the sources of unwanted coupling and radiation, and systematic approaches for their minimization. The class offers approximately one day's worth of material, but is typically offered in five 90-minute sessions (9:00am to 10:30am Pacific time) via web-classroom. Each daily session is a live online event but the recording can be made available on demand and online to support students requiring a more convenient viewing time. For on demand students, simply register online or by contacting the office and you will receive the login details for 30 day access to the recording. Please feel free to contact us by email if you need more information - info@besserassociates.com.

This course is intended for registered individual students only. Please contact us for group rates at info@besserassociates.com or 650-949-3300. Recording, copying, or re-transmission of classroom material is prohibited.

Students will receive a signed Certificate of Completion on request.

Learning objectives

Upon completing the course you will be able to:

  • Define electromagnetic compatibility.
  • Identify sources of coupling and radiation.
  • Discuss and simulate the effectiveness of various shielding strategies.

Target Audience

Product and package design engineers of all expertise levels will benefit from this course. A basic engineering background (BSEE or equivalent) is required.

Outline

Day One

Electomagnetic Compatibility
 • Definition of EMC • Ground definitions • Measuring Radiation - large scale (test box) and localized (probes)
Coupling and Radiation
 • Differential and common mode connections • Coupling control techniques • Crosstalk between microstrip vs other lines • Radiation vs. loop area • Isolation techniques
Shielding
 • Shielding effectiveness and wave impedance; shield materials • Effects of slots and holes in shield • Multiple small or fewer large holes? • Transfer impedance as the effectiveness parameter
Grounding
 • Current distribution between shield and ground plane • Coupling through common ground inductance • Shared vias • Ground plane discontinuities and inductance effects • Choking off ground currents, filtering the power lines
Experimental/Numerical Techniques of Problem Solving
Case Studies