In Reply to: Characterization of PCB posted by Sara on 06/05/03 at 2:42 AM:
The printed circuit boards can be classified based on their performance as .
They are based on IPC specifications as
CLASS 1- General electronic product boards
CLASS 2- Dedicated Service Electronics products
CLASS 3- High reliability Electroni products
Refer to IPC-2221 document on generic printed circuit boards.
Based on the producibility level, they are classified as
CLASS A- General Design Complexity
CLASS B- Moderate Design Complexity
CLASS C- High Design Complexity
I hope the above info helps you.
For further reference and explanation refer to IPC2221 document.