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I ripped off the bottom pad of a DFN (pic attached). Is it fixable/best strategy?

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    #1

    I ripped off the bottom pad of a DFN (pic attached). Is it fixable/best strategy?

    My motherboard died and I've been researching for a couple of weeks. I finally got some chips in and ripped off a slightly torn DFN mosfet pad while cleaning the board. Any suggestions on a general strategy to repair/replace it? I have the severed pad if it's possible to reattach. thanks, ya'll!
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    #2
    Re: I ripped off the bottom pad of a DFN (pic attached). Is it fixable/best strategy?

    Yep easy Fix Soldering gun & Flux those 2caps are connected with Drain side of the Fet , scratch the broken end on the MB put a jumper, but 1st do a continued test Multimeter , in YOUTUBE you can find many Videos
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      #3
      Re: I ripped off the bottom pad of a DFN (pic attached). Is it fixable/best strategy?

      Awsome. Thanks for the direction!! I'll dig in to reading/watching. Do I need to keep the broken pad?

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        #4
        Re: I ripped off the bottom pad of a DFN (pic attached). Is it fixable/best strategy?

        The old PAD is in the bottom side of that Fet heat up with the soldering gun & take it off you can use the same pad with some skills patience !

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          #5
          Re: I ripped off the bottom pad of a DFN (pic attached). Is it fixable/best strategy?

          Thank you so much!

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            #6
            Re: I ripped off the bottom pad of a DFN (pic attached). Is it fixable/best strategy?

            put some solder mask, put old ripped of pad ... glue with uv lamp... solder back 2 point with good amount of solder... place mosfet back, remove a bit of the extra solder on it.

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              #7
              Re: I ripped off the bottom pad of a DFN (pic attached). Is it fixable/best strategy?

              Hey techtiger, on that pic you posted: do I just need to connect one of them back to the new chip, or does the mass of multiple wires matter? I'm asking because the drain connects to several things in that area. (pic attached)
              If not, could I also just connect to the test point I marked?
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                #8
                Re: I ripped off the bottom pad of a DFN (pic attached). Is it fixable/best strategy?

                Oh, nevermind, I scraped and got to the copper where you highlighted

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                  #9
                  Re: I ripped off the bottom pad of a DFN (pic attached). Is it fixable/best strategy?

                  Originally posted by jonoldsdev View Post
                  Hey techtiger, on that pic you posted: do I just need to connect one of them back to the new chip, or does the mass of multiple wires matter? I'm asking because the drain connects to several things in that area. (pic attached)
                  If not, could I also just connect to the test point I marked?
                  Just on copper wire will do the Job what is you MB Dell ? & Number?

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                    #10
                    Re: I ripped off the bottom pad of a DFN (pic attached). Is it fixable/best strategy?

                    is that thing toasted?
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