[PCB_FORUM] Re: 0402, 0603 round pads

  • From: "Austin Franklin" <allegrolist@xxxxxxxxxxxx>
  • To: <icu-pcb-forum@xxxxxxxxxxxxx>
  • Date: Thu, 4 Jan 2007 21:53:10 -0500

Hi Gary,

I use round pads for my 0402s on the opposite side of 1mm BGAs.  That way I
can keep the decoupling caps and termination resistors right there.  Works
fine, haven't had any yield problem.

Regards,

Austin
  -----Original Message-----
  From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx]On Behalf Of Macindoe, Gary
  Sent: Thursday, January 04, 2007 6:05 PM
  To: icu-pcb-forum@xxxxxxxxxxxxx
  Subject: [PCB_FORUM] 0402, 0603 round pads


  Hey guys,



  Man has it been quiet (or am I not receiving forum e-mails?).



  So, I've been looking at some designs from a couple of other groups within
the company.

  Both of them have their 0402 and 0603 foot prints with round pads (0402 =
rd25).



  Is anyone out there also using round pads for 0402s and 0603s, and why?



  They have oval pads for their 0805s and 1206s also.



  I still have square or rectangular for all of the above.  Could it have
something to do

  with lead free?



  Thanks and Happy New Year!



  Gary





  Gary E. MacIndoe

  PCB Design Engineer

  Longmont, Colorado



  amd.com

  gary.macindoe@xxxxxxx

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