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Finer design rules

autodeskguest

Hi everybody,

 

I am working with TSOP and SOJ packages and couldn't figure out a nice

*.dru for my work. Any suggestions would be greatly appreciated.

I don't know if that is even possible with double sided PCB. I can have

vias that is not a problem.Just double sided is my max

 

thanks

 

Csaba

 

  • Hello Csaba,

     

    In Eagle you can modify design rules as you wish basically without

    limitations.

    Design rules can be modified with command "Edit" > "Design Rules".

    After editing the rules, you can save you new rules with browse button "Save

    As.." into your file system for further use with another projects.

     

    It's recommended to check directly from PWB manufacturer you'll use for your

    printed wiring board their capability to meet your requirements for the

    design rules. Usually capability information for minimum line widht /

    spacing as well as for minimum hole sizes should be available in PWB

    manufacturer's home pages. If not, I'm sure that they can provide this

    information upon request.

     

    And don't worry about layer count: With TSOP packages you should be able to

    survice with 2-layer design, but in case if you go for BGA / CSP's with 0.4

    mm pitch then you'll need most likely some HDI technology boards.

     

    Kind regards: Tero

     

    "Csaba" <czvekan@gmail.com> kirjoitti viestissä

    news:fvaalk$ka5$1@cheetah.cadsoft.de...

    Hi everybody,

     

    I am working with TSOP and SOJ packages and couldn't figure out a nice

    *.dru for my work. Any suggestions would be greatly appreciated.

    I don't know if that is even possible with double sided PCB. I can have

    vias that is not a problem.Just double sided is my max

     

    thanks

     

    Csaba