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Create layout directly in Allegro PCB SI

pyohayo

Hello,

Is it possible to create layout directly in Allegro PCB (without having a deal with schematic):

  • create list of nets
  • create geometry objects
  • associate these objects with nets
  • create stackup
  • associate particular net with a stackup layer

The same questions for PowerSI (Sigrity package)

Thanks in advance

Pavel

  • Johan J

    Hi Pavel,

    Yes, in Allegro this is possible, Using Part Logic and Net Logic.

    For PowerSI, I really do not know. But if you start Allegro with the license feature Allegro Sigrity Si it will also work.

    Regards,

    Johan

  • pyohayo

    Hi Johan

    Thanks for response.

    Sorry, I'm not very familiar with Allegro flow. What are "Part logic" and "Net logic" - particular tools or interface options in Allegro PCB ?

    I've already succeded to create nets in Allegro PCB SI (menu Logic, than Create list of nets) and associate my polygons with nets.

    Now I'm searching for a possibility to edit stackup, that par default consists of 4 layers (2 conductors (TOP, BOTTOM) one dielectric FR-4 between them and the last layer - AIR). Layout Crossection interface seems doesn't allow to add new layers ...

    Also I didn't find a possibility to change the layer of polygon: initially I created it on TOP, but now want to pass it to BOTTOM. Possible ?

    Thanks

    Pavel

  • steve
    Part Logic and Net Logic are menu commands available under the Logic menu that allow you to add components and nets without the need for a schematic. For cross section go to Setup - Cross Section then right click where you want to add a layer and pick Add Layer Above or Below. Set the Type and Material accordingly. To change the layer of a polygon (or Shape) hover over it and use right click - Change to Layer and pick the layer you want.
  • pyohayo
    Thanks


    Logic menu - Ok

    For cross section go to Setup - Cross Section then right click ... - Ok

    ... hover over it and use right click - Change to Layer and pick the layer you want - I didn't find such option (please, see the image) ... I've tried Change active subclass, but polygone BBB remained on TOP.

    One more question - can I add my own materials (both cinductors and dielectrics in Material library)


    Thanks
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