[PCB_FORUM] Re: 0402, 0603 round pads

From: "Macindoe, Gary" <Gary.Macindoe@xxxxxxx>
To: icu-pcb-forum@xxxxxxxxxxxxx
Date: Fri, 5 Jan 2007 11:45:28 -0600
Yes it is!  Sorry about the snow thing, I just thought Austin was in
Boulder.  We're getting buried again!

The forum was so quiet, I thought it could use a good topic.  Guess it
worked!

 

Yeah, I guess the round pad or rounded corners would allow for some more
routing.

 

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
sjchar3@xxxxxxxxxxxx
Sent: Friday, January 05, 2007 10:01 AM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [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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[PCB_FORUM] Re: 0402, 0603 round pads

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