LM4040C30: LM4040C30 - Matte Sn and NiPdAu

Sunset

Genius 13755 points

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

over 8 years ago

0 Michael_DeSando over 8 years ago

TI__Genius 12630 points

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

0 Diego Lewis over 8 years ago

TI__Intellectual 1540 points

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

0 Sunset over 8 years ago in reply to Diego Lewis

TI__Genius 13755 points

Thanks for the additional notes.

Ciao,

SunSet

Power management

Power management forum

LM4040C30: LM4040C30 - Matte Sn and NiPdAu