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PCB design,PCB Layout and routing,Allegro PCb

  • Want to change D2PAK footprint with TO263-3 on Orcad/Allegro PCB Editor

    I have a PCB *.BRD file. No schematic no netlist. On board 03 D2PAK footprint placed U28, U29, U30. I want to replace a only U29 footprint D2PAK with To263-3. Any body know the procedure to replace the footprint without schematic and netlist.
    Posted to PCB Design (Forum) by AamirZ on Tue, Nov 20 2012
  • Greeting to all guys here

    Hello, guys, it is my first time to know you here. This is Jack from SOPPCB TECHNOLOGY in Shenzhen, China, we are a factory to make PCB fabrication and assembly for nearly 10 years. If any one here need to make PCB boards, pls contact me. Jack soppcbtech at gmail dot com SOPPCB
    Posted to PCB Design (Forum) by SOPPCB on Fri, Feb 17 2012
  • TestPrep in OrCAD PCB Editor

    Ahoy there, I'm using OrCAD PCB Editor to create ICT testpoint. I'm trying to create a report to print net name with its associate testpoint so I can see which nets have testpont and which hasn't. How can I mark nets that already have testpoint in the DSN, so when I run testprep with "Add...
    Posted to PCB Design (Forum) by Alfandari on Wed, Apr 13 2011
  • How to create drill location report

    Hi all, Can anybody help me, How to create drill location report from a .brd file (Tool: Allegro PCB design 16.3)? Below is an example from an orcad layout plus file. COMMENTS DRILL TOOL XCOORD YCOORD ------------------------------------------------------- Holes (Padstacks with no pads defined) 2.60...
    Posted to PCB Design (Forum) by rinj on Thu, Feb 17 2011
  • PCB autorouter(spectraa) not converging

    Hi, I am making my first pcb with a xilinx fpga device(256 pin BGA package).I am simply connecting the all I/O's to 4 standard 40 pin connectors.Are padstacks necessary for PCB routing??.I have drawn the schematic in Capture imported it to Layout_Plus and autorouted it. But after 3 hours of autorouting...
    Posted to PCB Design (Forum) by bennyn1 on Thu, Sep 2 2010
  • one design spanning multiple boards

    Hi. We're using Allegro PCB Design XL 16.2 to do our layouts, and I am in the process of splitting a design from one board into two boards. Is there a way to do this, and still keep things within the same .dsn file? For example, consider the following layout of an imaginary design called whatever...
    Posted to PCB Design (Forum) by mpfleger on Tue, Mar 2 2010
  • Automatic Routing Update From Constraint Change

    Hi Folks, I am in Allegro 16.2 and I have had to create a new Physical Constraint Set (PCS/Physical CSet) for which I want several nets and DPr(differential pair)/nets ro reference. I have changed the values for Line Width,Neck etc and they have saved. Is there a way to have these changes: 1) populate...
    Posted to PCB Design (Forum) by Thomas M on Tue, Dec 15 2009
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