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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Feed Rate: The feed indicates the depth to which the drill penetrates into the
material in one revolution. The feed is specified in mm/revolution and it is
determined as follows: Feed = Best results are obtained with feed rates
adjustable without ...
drill bit with a 100° of point angle is suitable for phenolic laminate drilling. Short
twist drill bit with 120° of point angle is suitable for glass epoxy laminate drilling.
In order to compensate for the laminate resilience, the drill bit diameter is chosen
10.4.12 Drilling Problems Defective holes are formed due to improper drill bit
geometry, drill speed, feed rates and improper cured base materials. The
following are the main defects noticed in the drilled hole: a Resin smear; a Nail
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1 Basics of Printed Circuit Boards
2 Electronic Components
3 Layout Planning and Design
15 other sections not shown