Printed Circuit Boards: Design, Fabrication, and AssemblyMcGraw 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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Page 205
... Diameter and Solder Pad Diameter 5.3.4.1 Hole Diameter It is essential that the component lead should be fitted only into the hole of an appropriate diameter. The hole must allow easy insertion of components without excessive pressure ...
... Diameter and Solder Pad Diameter 5.3.4.1 Hole Diameter It is essential that the component lead should be fitted only into the hole of an appropriate diameter. The hole must allow easy insertion of components without excessive pressure ...
Page 206
... diameter of the finalized and plated holes gives about 0.2-0.5 mm clearance as compared with the nominal diameter of the component lead. a Hole diameter = effective lead diameter + hole location tolerance (PTH) + 0.2 mm. The pad or land ...
... diameter of the finalized and plated holes gives about 0.2-0.5 mm clearance as compared with the nominal diameter of the component lead. a Hole diameter = effective lead diameter + hole location tolerance (PTH) + 0.2 mm. The pad or land ...
Page 400
... diameter is chosen which is slightly bigger than the hole diameter expected. Therefore, the diameter of the drilled holes would be usually smaller than the diameter of the drill used. The difference could be 50 microns for hole diameters ...
... diameter is chosen which is slightly bigger than the hole diameter expected. Therefore, the diameter of the drilled holes would be usually smaller than the diameter of the drill used. The difference could be 50 microns for hole diameters ...
Contents
1 Basics of Printed Circuit Boards | 1 |
2 Electronic Components | 25 |
3 Layout Planning and Design | 104 |
Copyright | |
15 other sections not shown
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Printed Circuit Boards : Design, Fabrication, and Assembly: Design ... R. Khandpur No preview available - 2005 |
Common terms and phrases
acid addition adhesive applications assembly base capacitors cause cent chemical cleaning coating complete components conductive conductor connection containing copper cutting defects depends devices dielectric drill edge electrical electronic equipment etching fabrication Figure film flexible flow flux foil function glass ground heat hole impedance important increase inspection insulation integrated interconnections joint laminate laser layers layout lead less machine manufacturing material measured mechanical metal method mount operation package pads pattern performance pins placed plating position possible printed circuit board production range reduce reference removed resin resistance routing screen shown shows side signal solder solder mask solution spacing specific standard steps surface technique temperature thermal thickness through-hole tool traces typical usually various voltage wave width wire