What happens to signals inside the board itself?
How do the parts and signals affect each other?
It is much more complicated when they occupy the same area on the board, or when they travel layer to layer while propagating around the board.
What can be done for a prototype might not be possible for a production board.
Newer designers need to understand the issues that affect fabrication and assembly of the board, as cost continues to be an important factor. And CAD output files are only the beginning of what is needed for the complete documentation package.
Many veteran electronics industry experts will be retiring soon, and there will be fewer resources to tap for that collective knowledge. No matter what your experience level, try to learn from mentors while you can – participate in all the classes and seminars available to you.
, CID is head of the Design Science consulting firm. Her career includes experience in coastal and oceanographic oil exploration and monitoring equipment, CPCI and ATX computer motherboards, and point-to-point microwave network systems. Her next classes are in San Diego on February 25 and 26:
The Complexities of Fine-Pitch BGA Design and Part Placement Choices and Consequences
. For course information:
www.ipcapexexpo.org > Education & Technology > Professional Development or connect directly with the expert at
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