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Aspect ratio

M sakthi S
What is mean by aspect ratio in pcb design?
  • KARPCB
    Hi Sakthi,

    Aspect ratio is the ratio of board thickness to Smallest via diameter.  

    Example:

    board thickness : 64mils (1.6mm)

    smallest hole : 8mils

    Aspect ratio is : 64/12 =  8:1

    The larger the aspect ratio, the more difficult it is to achieve reliable plating.

    Thanks,
    Karthik.
  • KARPCB
    Hi Sakthi,

    Aspect ratio is the ratio of board thickness to Smallest via diameter.  

    Example:

    board thickness : 64mils (1.6mm)

    smallest hole : 8mils

    Aspect ratio is : 64/8 =  8:1

    The larger the aspect ratio, the more difficult it is to achieve reliable plating.


    Thanks,
     Karthik.
  • M sakthi S

    Hi karthik,

     Got it...

     thank you...

    So, it is important one when we decide stack up.. correct?

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