Electronic map tracing

Goals

The objectives of the training Electronic map tracing :

Upon completion of this training course, participants will be able to take into account all key EMC parameters for the layout of electronic circuit boards.

The goal of this training course is to:
• Be able to avoid recurring placement and routing errors
• Be able to analyze different types of coupling
• Master the routing of ground planes, power supplies, and sensitive traces
• Understand where and how to place protection and filtering components
• Understand the routing of impedance-controlled high-speed connections

Session dates:
• from 25/05/2027 to 27/07/2027 - Lyon
• from 14 /12/2027 to 16 /12/2027 - Vélizy
Contact : +33 04 76 49 76 76 | formation@sopemea.fr

Financial details:
• Financial assistance options based on your status (Company, Employee, Job Seeker) through your OPCO, France Travail, or any other funding agency
• Not eligible for the Professional Training Account (CPF)

Program

1/ Introduction
• EMC characterisation of equipment
• Common mode/differential mode
• Representation of a sinusoidal/trapezoidal signal
• Time-frequency analogy
• Evolution of printed circuits
• Management and planning of a printed circuit


2/ Masses and power supplies
• Common impedance coupling
• Impedance of a ground plane
• Return of HF currents
• Slot in a ground plane
• Impedance of a printed circuit board track
• Star power supply
• Analogue power distribution
• Multilayer decoupling
• Power mesh
• Maximum track current
• Power supply noise
• Capacitor impedance
• Multilayer decoupling
• Ground plane/power plane
• Flex
• Mixed analogue/digital boards
• Galvanic isolation
• Connecting 0V to the chassis


3/ Sensitive tracks
• Principle of capacitive coupling between board and chassis
• Total capacitance between card and ground plane
• Parasitic capacitance of tracks
• Guard ring
• Mechanical and thermal effect on voltage reference
• Optimal distribution of CIP layers
• Routing of sensitive tracks
• Shorten the sensitive side
• Component layout
• Example layout
• Track-to-track coupling
• Screen track
• Crosstalk in backplanes
• What is a field?
• Induced voltage in loops
• Reducing the surface area of loops


4/ Electronics radiation
• Radiation from a small loop
• The two types of electronics radiation
• Clock layout
• Controlling vertical paths
• Radiation from card edges / Backplane
• Layout and tracing of tracks
• Origin of common mode current


5/ Input/output protection
• Capacitive filtering of inputs/outputs
• Errors to avoid
• Filter layout and routing
• Input-output crosstalk filters
• Routing of differential links


6/ Transmission lines
• Definitions
• Impulse reflection line
• Signal shapes
• The eye diagram
• Eye open and closed
• Line topologies
• When should a line be adapted?
• Differential links
• Propagation speed and delay
• Greek delay
• Calculation of characteristic impedance
• RF Calc
• Stub effect
• Distributed impedance matching
• Backplane problem


7/ Influence of manufacturing
• Manufacturing tolerance
• Increased copper losses due to roughness
• Tropicalisation and circuit protection