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 Community Search 

Page 1 of 17 (168 items) 1 | 2 | 3 | 4 | 5 | Next > | Last »
  • Wrong naming of nets
     Hi, We are facing a strange problem that when we imported schematics to board file the net name appears too long in constraint manager as shown in attached image. How to overcome this issue? Using Allegro PCB Deisgn L v16.01  Any inputs will be appreciated.  Shiva.
    Posted to PCB Design (Forum) by C Shiva on Sun, Aug 3 2014
  • Drill hole tolerance issue
     Hi everyone, In most fab house, they asking tolerance +/-3mils for via (PTH) fabrication. But my doubt is, for 12x24 power via, if hole size becomes 12+3=15mils, there is no issues for current flowing. But if hole size becomes 12-3=9mils, the current capacity will reduces and if might be fatal for design. How to overcome this issue? Any ...
    Posted to PCB Design (Forum) by C Shiva on Mon, Jul 28 2014
  • Validation of 20H rule
     Hi all,  I heard that a popular rule "20H rule" is not valid now. In present dense designs, its difficult to implement it. If anyone has worked on it, I would like to know, whether its valid or not and also its pro's and con's.  Thankyou,  Shiva.
    Posted to PCB Design (Forum) by C Shiva on Thu, Jul 24 2014
  • One strange question...
     Dear all,  My question is, why all single ended signals in PCB are 50E, 75E and differential is 90E, 100E? Why not it will be 40E or such a different value?  The queation seems like silly but solving and getting answer is always a good matter i think.  Thankyou  Shiva.
    Posted to PCB Design (Forum) by C Shiva on Fri, May 23 2014
  • Re: Place by Schematic page...
    Thanks all for your inputs.  At Nayyierwajih, we are using Orcad for schematics. As oldmouldy told, we need to upgrade our tool to v16.5 or later to get this option enabled.
    Posted to PCB Design (Forum) by C Shiva on Wed, Jun 19 2013
  • Place by Schematic page...
    Hi All, In one of our new design, due to large number of parts, we would like to place the parts as "Place by schematic page number". But in our tool the option is disabled. If anyone knows how to enable it, kindly help us. Attached a screen shot for reference. Using Allegro PCB design L v16.01 Thanks, Shiva.
    Posted to PCB Design (Forum) by C Shiva on Mon, Jun 17 2013
  • Re: Hanging issue
     You are right i think. Because if i run the same board file in another system with older version of tool v16.01 without any property, it works fine without any lagging.
    Posted to PCB Design (Forum) by C Shiva on Thu, Jun 6 2013
  • Re: Hanging issue
     Thanks for your solution. After setting a Voltage property the problem has solved and it working smoothly.
    Posted to PCB Design (Forum) by C Shiva on Wed, Jun 5 2013
  • Hanging issue
    Hi All, In our present board while routing ground (GND) net, the tool getting slow and taking time to route every segment. But for other nets with VCC it working fine. There is no properties attached to the GND net. If anyone faced the same, please help to solve the issue. Using Allegro PCB Designer v16.6 Thanks, Shiva.
    Posted to PCB Design (Forum) by C Shiva on Wed, Jun 5 2013
  • Generating 3D image of board
     Hi all,  When I'm generating 3D image of board for enclosure purpose the image appears like as in attached image. But it's not an exact image we can see after assembly of all parts, i mean an image like as a photo of the assembled board and the image is confusing the MCAD person. How can I generate an exact image in ...
    Posted to PCB Design (Forum) by C Shiva on Wed, Apr 3 2013
Page 1 of 17 (168 items) 1 | 2 | 3 | 4 | 5 | Next > | Last »