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About BGA drawing

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  • About BGA drawing

    Hi.

    on this drawing for a BGA, I do not understand the meaning of ddd and eee.
    thanks for help.

  • #2
    Interesting. What is the part number?

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    • #3
      It's under NDA. I'm not allowed to give it.
      I guess that 'b' gives the ball diameter: 0.3 mm

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      • #4
        Finally I generated the footprint using free Library Expert Pro.

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