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  • TI Thinks Resolved

LM4040C30: LM4040C30 - Matte Sn and NiPdAu

Part Number: LM4040C30

Hello All,

Upon the PCN 20170216000, the LM4040C30  will have two assembly sites.

The lead finishing, depending on the site, will be either Matte Sn or NiPdAu.

  • From soldering perspective do I need to keep in mind any difference?
  • Can the manufacturing soldering process remain the same or do I need to change anything?
  • From the strength perspective the solder joins can be considered similar/stronger/weaker?

Thanks,

SunSet

  • SunSet,

    There are no differences to keep in mind from the soldering perspective. This allows us to have two different finishes since there is no noticeable difference from soldering perspective. Please let me know if you have any more questions. Thanks!

    -Michael

  • Hi Sunset,

    I agree with Michael's answer. However, if you wanted more data on it, below is a link to an application report that discusses this further:

    www.ti.com/.../szza035a.pdf

    Regards, Diego
  • In reply to Diego Lewis:

    Thanks for the additional notes.

    Ciao,

    SunSet

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