Printed Circuit Boards: Design, Fabrication, and Assembly
McGraw Hill Professional, 2005 M09 7 - 704 pages
The printed circuit is the basic building block of the electronics hardware industry. This is a comprehensive single volume self-teaching guide to the art of printed circuit board design and fabrication -- covering the complete cycle of PCB creation, design, layout, fabrication, assembly, and testing.
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The processed digital data from CAD systems are converted back to graphics by
photographic means with the help of an equipment called a 'photoplotter'. In this
equipment, the drawing head which is a light spot projector changes its relative ...
5.11.1 Vector Photoplotter The computer numeric control (CNC) vector machines
produce photoplots by moving a projection head across a sheet of photographic
film. When stationary, the projection head could “flash” the light source to image ...
In conclusion, two factors led to the demise of the vector photoplotters. Increased
design densities and the photoplotting of stepped multiple images increased
photoplotting demands to the point where plotters had to be tremendously fast.
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1 Basics of Printed Circuit Boards
2 Electronic Components
3 Layout Planning and Design
15 other sections not shown