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TPS22950: Stencil Thickness

Brian Gosselin
Expert 4615 points
Part Number: TPS22950

Hello,

My customer's standard stencil thickness is 4 mils.  The TPS22950 datasheet has 3 mils.  Is it okay to use a 4 mil thick stencil with this part?

Best Regards,
Brian Gosselin

  • 0
    TI__Genius 15550 points

    Hi Brian, 

    I am reaching out to our internal team for that information. 

    I will let you know when I hear back. 

    Best Regards, 

    Elizabeth 

  • 0 in reply to Elizabeth Higgins
    TI__Genius 15550 points

    Hi Brian, 

    As discussed via email, if the stencil thickness is changed to 4 mil, (0.1mm rather than 0.075mm), the area aspect ratio will drop to 0.47 making it very difficult to print.

    One option you can consider is to build a step down stencil. That is to etch the stencil for this device area thinner while other locations maintain 4 mil, however this usually raises the overall cost.

    Best Regards, 

    Elizabeth