EMC Considerations in PCB Design and Layout


This one-day seminar covers Electromagnetic Compatibility (EMC) considerations for digital printed circuit board design & layout.  The seminar is intended for PCB design and layout personnel as well as engineers interested in PCB layout.  Layout and routing techniques aimed at minimizing both radiated and conducted emissions are discussed.  Multilayer boards are emphasized.  Topics covered include: clock routing,  PCB partitioning, decoupling, transmission lines, characteristics of ground planes, and layer stack-up.
 
 


Outline

 

Introduction / Basic EMC Theory


Controlling Radiated Emission
---Common-Mode
---Differential-Mode
The PCB Review Process
Basic Principles of EMC
Skin Effect
Partitioning
---Component Placement
---Clock Location
---I/O Area

Board Routing

Clock Routing
Guard Traces
Crosstalk
Transmission Lines
---Microstrip
---Stripline
---Asymmetric Stripline

Decoupling Methods

Decoupling Problems
Use of Multiple Capacitors
Use of Distributed Capacitance
Capacitor Mounting
Power Plane Isolation

Ground Planes & Layer Stack Up

Characteristic of Ground Planes
Ground Plane Current Distribution
Slots in Ground/Power Planes
Layer Stack-Up Considerations
Examples of Typical Layer Stack-Ups


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Henry Ott Consultants
48 Baker Road Livingston, NJ 07039
Phone: 973-992-1793,   FAX: 973-533-1442
e-mail: h.ott@att.net

March 26, 2002