[SI-LIST] Re: Assembly holes in PCB with GND pad

  • From: Augusto Einsfeldt <aee@xxxxxxxxxxxx>
  • To: "steve weir" <weirsi@xxxxxxxxxx>
  • Date: Tue, 1 Jun 2010 16:50:51 +0000

 the idea is to make the PTH attachments outside the compressed
region 
 between the fasteners.
 Steve.
 Augusto Einsfeldt wrote:
 > Hello all,
 > This maybe an OT but I guess some members here can clarify it
easily.
 > I am used to use mettalized holes in PCBs to connect the GND to
the assembly chassis (frame) of the machine and it seems to work
fine. In the other hand I have seen many PCBs for computer
mother-boards and even telecom with a non mettalized hole of, say,
3mm diameter and several through holes inside the pad ring.
 > Is it just to ease some manufacturing process, a quality
improvement design or is it SI related?
 >
 > Thanks for your time on this matter.
 >
 > -Augusto
 >
 > .
 >
 >
 > 
 >
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 -- 
 Steve Weir
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