3. Design parameters
3.1 Layout elements
When inserted and soldered components, e.g. wave soldered, are to be installed on a printed circuit board, the minimum hole grid generally adopted is 2.54 mm, which corresponds exactly to 0.1 in. In fact, the pitch of the output pins on components of this type is only 2.54 mm.
With the widespread use of surface-mounted components, the drilling grid can be significantly reduced. However, we strongly recommend the 1.27 mm grid (exact conversion of 0.05...
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Design parameters
Materials and manufacturing processes. Associated controls
Bibliography
Software tools and websites
http://electronique-mag. com piste et pastilles magazine website dedicated to printed circuit boards.
http://ipc-2581.com/ PCB data exchange file description site
Regulations
RoHS Directive: Directive 2011/65/EU of the European Parliament and of the Council of June 08, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS: Restriction of Hazardous Substances).
WEEE Directive 2012/19/EU of the European Parliament and Council of July 04, 2012 on waste electrical and electronic equipment (WEEE: Waste Electrical and...
Events
IFTEC training courses in printed circuit board technology : http://www.iftec.fr.
Standards and norms
The French NF 93713 and European UTE 93703 standards, although still in use and valid for standard printed circuit boards, are no longer updated for advanced processes, and have been superseded by the American IPC standards ( http://www.ipc.org ): The institute for interconnecting and packaging Electronic circuits.
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