[PCB_FORUM] Re: Suppressing pads

  • From: "Schwartz, Jerome" <jschwa01@xxxxxxxxxx>
  • To: <icu-pcb-forum@xxxxxxxxxxxxx>
  • Date: Thu, 9 Sep 2010 13:03:36 -0400

It's in the Dynamic plane parameters.

 

Jerry 


 

From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Van Os, Richard
(GE Healthcare)
Sent: Thursday, September 09, 2010 12:56 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: Suppressing pads

 

Where did full contact vias go?  

 

On a negative plane you create a via without a thermal.  This makes it a
full contact via.  The neg plane allows more copper since the contact is
based on the hole size versus the outer pad dia.

 

 

 

 

 

Full contact via show to GND on neg plane

 

 

Versus a via with a thermal

 

 

 

 

 

Richard Van Os, C.I.D
GE HealthCare -Surgery 

Lead PCB Designer
801-517-6430 (Phone) 

 

 

 

________________________________

From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Schwartz,
Jerome
Sent: Thursday, September 09, 2010 10:41 AM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: Suppressing pads

Hope some of you are  seeing the issue I am. These are outer layer vias.

You can't suppress them and expect the vias to be plated through.

I would make them blind vias since the outer layers are foil laminated.

 

 

Jerry 


 

From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Mark Yamashita
(mayamash)
Sent: Thursday, September 09, 2010 12:31 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: Suppressing pads

 

Gennadiy,

 

      This is in your artwork set up. Manufacture => artwork => select
your layer. This is in the allegro expert.

 

 

 

 

 

Mark

 

-----Original Message-----
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Gennadiy
Kiryukhin
Sent: Thursday, September 09, 2010 9:06 AM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: Suppressing pads

 

Under Setup I have: Drawing Size, Drawing Options, Text Size, Grids, 

Subclasses, Define BB Via, Constraints, Property Definitions, Define 

Lists, Areas, Outlines, and User Prefs.

 

Is it specific to a certain version/license?

 

CHRIS LANZA wrote:

> Under setup there is pad suppression. You suppress vias also

> 

> -----Original Message-----

> From: icu-pcb-forum-bounce@xxxxxxxxxxxxx

> [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Gennadiy

> Kiryukhin

> Sent: Thursday, September 09, 2010 10:47 AM

> To: icu-pcb-forum@xxxxxxxxxxxxx

> Subject: [PCB_FORUM] Suppressing pads

> 

> I have a BGA with ground plane under it. The problem I have is that
the 

> ball pitch is too small to create a single ground (power)plane under
it 

> with all the via pads unsuppressed. See picture attached. Instead of 

> having one GND plane I have small islands. Is there any way to
suppress 

> pads on vias that don't have connections on that plane so that I have 

> more room to create a single GND plane?

> 

> Thank you.

> 

 

-- 

 

Gennadiy Kiryukhin

Development Engineer

ATSI

8157 US Route 50

Athens, OH 45701

Phone: (740) 592-2874

Fax (740) 594-2875

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