Solder pads are lifting on me - what to do

Discussion in 'Electronics Resources' started by bobbyrae, Apr 15, 2012.

  1. bobbyrae

    Thread Starter Active Member

    May 14, 2009
    42
    1
    I have experienced a couple of solder pads lifting up on me and they essentially got destroyed. Why is another story, I think, so here I will just ask if I am taking the right approach to dealing with the situation.

    On the first on in the picture, I just stretched one lead up to the next good solder joint on the tracing.

    On the second one, it was so far away that I could only use a wire. I have some wire that is solid, tinned, and insulated 20-gauge. The current at this point of the circuit will be very low because it is the first stage of a stereo amplifier.

    What do you think? It seems like trying to fix the pads themselves would be way too hard and/or impossible.
     
  2. panic mode

    Senior Member

    Oct 10, 2011
    1,318
    304
    what kind of soldering tool you have there? are you sure you are not burning board?

    are the parts seated properly so pads are lifted due mechanical forces like pressing on the component?

    how old is the board?
     
  3. bobbyrae

    Thread Starter Active Member

    May 14, 2009
    42
    1
    "Why is another story, I think, so here I will just ask if I am taking the right approach to dealing with the situation. "
     
  4. chrisw1990

    Active Member

    Oct 22, 2011
    543
    41
    lol iv done that, usually with surface mount tracks.. and were talking 0.3mm on my most recent design..
    get a small scalpel.. scrape the green stuff away from where it would have connected, and solder it to that, looks like you spent too long with the iron on it.
    those style tracks, where its a track, not a copper plane.. need to be delicate, im not saying touch it and bam.. just touch, pause.. engage.. oh wait thats rugby..
    make sense?
     
  5. #12

    Expert

    Nov 30, 2010
    16,248
    6,745
    True. Repairing the pads is very difficult. Adding jumpers works fairly well. You are on the right track. Just like painting, 90% of good soldering is proper preparation. If you make everything clean and use the proper solder (which has flux inside it) you will have good results, quickly.
     
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