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16.6,Allegro PCb

  • Constraints for fanout

    Hi, I want to create some rules for Allegro PCB when it creates fanout for my BGA. I have defined two types of VIAs and I want to force Allegro to use one VIA - and thick track width - for Power& GND pads and other VIA - with thinner track width - for signals. Where can I define such rules? Any suggestions...
    Posted to PCB Design (Forum) by Hossein1357 on Thu, Jul 31 2014
  • DRC Error: Package to Room Spacing

    Hi everybody, I am designing my PCB (OrCAD 16.6). When I place parts of a room I see below message: Class: DRC ERROR CLASS Subclass: PACKAGE_BOTTOM Origin xy: (1068.00 178.00) Constraint: Package to Room Spacing Constraint Set: NONE Constraint Type: DESIGN Constraint value: 0 MIL Actual value: 65 MIL...
    Posted to PCB Design (Forum) by Hossein1357 on Sat, Jul 26 2014
  • Re: Radial/polar placement !

    To place component as you desire, I tried "Import > Placement" command I calculated coordinates X and Y, setting: a RADIUS value (I used mils for the distance from origin), an ANGLE (degrees between a symbol and the next one), an initial PHASE (degrees, you may want to place the first symbol...
    Posted to PCB Design (Forum) by Alicia on Tue, Feb 4 2014
  • Orcad PCB / Allegro version conversions? (Argh!)

    I know; I should rob a bank and get my 16.2 Orcad PCB upgraded. But I don't really want to develop criminal skills. So I've spend a few days trying to find some way to convert 16.3 (and later) libs and boards to 16.2. And came up with absolutely nothing but a nasty feeling that Cadence is doing...
    Posted to PCB Design (Forum) by N i z e on Wed, Dec 18 2013
  • allegro sp 16.5 lite - "error(spmhod-29)"

    Hi, i'm new to pcb design tool , i received some .brd and .dra and .psm file from my friend for my practice, he did this on Allegro sp 16.6 but i'm using Allegro sp 16.5 lite version. when i open those file i receive the following error. ERROR(SPMHOD-29): Unable to open design because database...
    Posted to PCB Design (Forum) by ping2murali on Wed, Mar 27 2013
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