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Membrane PCB Design
Hello, Can any one please tell about membrane PCB Design,now i am designing a remote in that we are using membrane switches.
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drilling optimization
Hi, I want to know whether the PCB designed in Orcad PCB gives the NC Drill File with optimizedarrangement of co ordinates?thanks
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PCB design and Layout
Hi everybody,I have the following questions regarding orcad.We draw the circuit diagrams and make the connections in the schematic. We create a netlist. And then we import it to the layout. 1. After...
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Where is the Symbol editor "canvas" ?
Hi friends, I have been using the part developer tool (v16.6) for creating the symbols but i am not able the see the symbols i have created. I understand that the symbols can be viewed in canvas. Could...
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Z axis clearance constraint for High voltage nets
HelloIs there any way to insert a clearance constraint to avoid high voltage clearance violation between different layers.As i see it must take into acount the layer stackup dielectric thicknesses and...
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Locate a component by its reference on PCB - possible ?
Hello,Locate a component on PCB (with zoom on it) by its refernce on is very useful function, especially on complex PCBs with thousands nets/components. But it seems that this feature is missed in...
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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...
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Padstack editing
In the symbol editor, how do I change the pin number of a specific pad stack. For example, I have a connector footprint (converted from an old 16.2 library) that has a row of pins 1 thru 10. There are...
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Bus connection
Hi All,I'm using SPB16.5, making a schematic with OrCad Capture CIS. I made a bus named DATA[0:7] and then wired it with DATA0, DATA1....... etc. Now I need another bus named HSI[0:15]. However,...
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How can I utilize netlist & device files to place a self-created PCB package...
I am a new user of Allegro PCB editor of OrCAD 16.2. I want to modify an existed PCB design (*.brd) without schematic.My question is how can I utilize netlist & device files to place a self-created...
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PCB Design and Layout
Hi all,I am really stuck in the following problem, please help me...When we import a circuit drawn in the ORCAD Schematic into the ORCAD Layout with necessary Netlist, does the connection integrity...
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Intertool communications
When I pick a part in editor, it does not highlight in Capture. I have intertool comm enabled, I have opened and closed editor and capture and regenerated the netlist.I'm expecting that when I move R1...
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top side via tenting on thermal pad
Does anyone have any suggestions on creating footprint with thermal pad that requires topside via tenting on the top side?I tried making shape symbols for solder mask/ paste mask, but due to the void...
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Paths to Symbols & Pads go back to defaults between designs wierdness.
I am seeing some strange issues in 16.5 with symbol & pads paths. When I create a new board I have to go in to the user preferences\Paths \Library each time to edit where I want Allegro to pull...
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PCB design and Layout
Hi everybody,I have the following questions regarding orcad.We draw the circuit diagrams and make the connections in the schematic. We create a netlist. And then we import it to the layout. 1. After...
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About Schematic and footprints in orcad..
hi everyone, I am new to orcad. I am designing a PCB using orcad. I put all the components in the schematic and make the connections and I create a netlist and hence the footprint.The questions are,1)...
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Parameter file - load every time?
What do I set to have my own parameter file loaded every time? I made a parameter file with the settings the way I want them, but I have to load it everytime I start the program. This becomes...
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Converting libraries
I want to convert the standard SM.LLB from 16.2 into 16.5 format.I have created a catalog, set the plane layer to a routing layer and saved it as a .max file.I then start a new board in PCB Editor, go...
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Breaking down foot print libraries into categories
I find the one big footprint library very cumbersome. Has anyone broken theirs down into sub categories, ie; resistors, capacitors, ic's, etc..... If so are there any special constraints for the...
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