[PCB_FORUM] Re: 0402, 0603 round pads

Is this the snow and round pad discussion group? I think the round pads could allow more routing room.  
 
 
-----Original Message-----
From: allegrolist@xxxxxxxxxxxx
To: icu-pcb-forum@xxxxxxxxxxxxx
Sent: Fri, 5 Jan 2007 9:52 AM
Subject: [PCB_FORUM] Re: 0402, 0603 round pads

Hi Gary,
 
No, but I spent quite a bit of time there years ago.  I'm in Harvard, MA.
 
Regards,
 
Austin
-----Original Message-----
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx]On Behalf Of Macindoe, Gary
Sent: Friday, January 05, 2007 11:46 AM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: 0402, 0603 round pads

Hmm… I thought you were in Boulder Austin?  Guess not!
 
 
Gary E. MacIndoe
PCB Design Engineer
Longmont, Colorado
 
amd.com
gary.macindoe@xxxxxxx
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Austin Franklin
Sent: Friday, January 05, 2007 9:38 AM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: 0402, 0603 round pads
 
Hi Gary,
 
I keep hearing and seeing you guys are getting pummeled.  We have had NO SNOW!!!  And, it's supposed to be 63F tomorrow!
 
Regards,
 
Austin
 
-----Original Message-----
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx]On Behalf Of Macindoe, Gary
Sent: Friday, January 05, 2007 11:17 AM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: 0402, 0603 round pads
Hey Austin,
 
Are you tired of the snow yet?!?  I shoveled out this morning before coming in to work!  It’s a good workout!
 
I can see the benefit of using them on the bottom side, but I’m seeing them on top also.
 
Regards,
Gary
 
 
Gary E. MacIndoe
PCB Design Engineer
Longmont, Colorado
 
amd.com
gary.macindoe@xxxxxxx
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Austin Franklin
Sent: Thursday, January 04, 2007 7:53 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: 0402, 0603 round pads
 
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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