[PCB_FORUM] Re: Very interesting router...

This is true the router does not like shapes.
 

Jerry 

 

________________________________

From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Gennadiy
Kiryukhin
Sent: Wednesday, May 24, 2006 9:47 AM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: Very interesting router...


Here is the picture of the fanout that I got. Maybe it has to do with
the fact that I have placed a ground plane (hidden in the picture).
All other nets have nice and short fanouts. It looks like Router does
not like the ground/power plains (shapes).

 



David Price wrote: 

        Fanout is a local process; fanout rules are not obeyed during
active routing. 
        
        Fanout is important if it serves a purpose to be preserved (like
protecting the BGA dogbones). 
        
        Otherwise, the power and ground lengths are controlled
DYNAMICALLY with max_stagger rule. No rule - then no control. 
        
        Regards, 
        
        David 
        
        
        At 04:49 PM 5/23/2006, you wrote: 
        

                Why does router create unreasonably long and strangely
twisted fanouts for ground and power signals? 
                
                Thanks, 
                Gennadiy 
        
----------------------------------------------------------- 
                To subscribe/unsubscribe: Send a message to 
icu-pcb-forum-request@xxxxxxxxxxxxx 
                with a subject of subscribe or unsubscribe 
                
                To view the archives of this list go to 
http://www.freelists.org/archives/icu-pcb-forum/ 
                
                Problems or Questions: 
                Send an email to icu-pcb-forum-admins@xxxxxxxxxxxxx 
        
----------------------------------------------------------- 
                


        David Price 
        
        davidp@xxxxxxxxxxxxxx 
        
        866.586.9352    Phone   Toll-Free 
        866-422.5312    Fax     Toll-Free 
        
        http://www.eAutoroute.com 
        
        B o r n  T o  R o u t e 
        
        SPECCTRA Autorouting, SPECCTRA Onsite and Seminar Classes,
MakeDO E, MakeDO and AutoTools 
        
        DFM 
        351 Pleasant St. #275 
        Northampton, MA 01060 
        
        
        
        ----------------------------------------------------------- 
        To subscribe/unsubscribe: Send a message to 
icu-pcb-forum-request@xxxxxxxxxxxxx 
        with a subject of subscribe or unsubscribe 
        
        To view the archives of this list go to 
http://www.freelists.org/archives/icu-pcb-forum/ 
        
        Problems or Questions: 
        Send an email to icu-pcb-forum-admins@xxxxxxxxxxxxx 
        ----------------------------------------------------------- 
        
        



-- 

Gennadiy Kiryukhin
Development Engineer
ATSI
8157 US Route 50
Athens, OH 45701
Phone: (740) 592-2874
Fax (740) 594-2875

JPEG image

Other related posts: