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Repair Traces on Glass?

Discussion in 'Electronic Repair' started by mike, Dec 20, 2004.

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  1. mike

    mike Guest

    Repair Traces on Glass?

    A chip of glass broke out of the corner of the
    display on my Palm m505 PDA. It took with it
    the trace that wraps all the way around to the
    other side of the touchpanel.

    If I short across the break with tweezers,
    the touchpanel works. But I can't figger out how
    to repair the break.

    The trace is silver in color; I'm guessing aluminum???

    I bent a short piece of #30 solid wire into a right
    angle and mashed it flat to increase the surface
    area. Attached it with silver-bearing conductive
    paint. The contact resistance must be too high,
    cause it doesn't work.

    Tried soldering for grins, but no success.

    I have a 125 Joule CD spot welder and a tiny head.
    Thought about trying to weld a section of aluminum foil.
    I'm not optimistic about getting it done the first time.
    Probably won't get a second chance after I blow it all
    to smitherines. ;-)

    Ideas on how to fix this?

    Thanks, mike
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  2. James Sweet

    James Sweet Guest


    There's some conductive epoxies you could try, or that stuff you can get to
    repair defroster strips on car windows might work.
     
  3. It doesn't need much current.

    Get rid of the silver paint - it probably isn't even conductive.

    Get some circuit board repair silver Epoxy or something similar.

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  4. mike

    mike Guest

    What part of "silver-bearing conductive paint" did I fail to explain
    adequately????

    GC-22-0023-0000 "Silver Print II". "This Paint is air drying and leaves
    a highly conductive coating"...Use to repair printed circuits...made of
    pure silver..."

    Can you give a specific brand/part number recommendation for something
    that would work when this stuff won't??

    Thanks, mike


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  5. w_tom

    w_tom Guest

    Radio Shack sells a 'pen' of conductive material. Material
    is not conductive until it dries. Radio Shack P/N 640-4339.
    Otherwise this stuff is hard to find.

    mike wrote:
    Get some circuit board repair silver Epoxy or something
    similar.
     
  6. Franc Zabkar

    Franc Zabkar Guest

    3M makes some conductive tapes:
    http://groups-beta.google.com/group...ics.repair+author:zabkar#doc_028233ab212f0d56
    http://groups-beta.google.com/group...ics.repair+author:zabkar#doc_b739a1a8b5b69bfd

    I guess you could tape the two ends together and then bridge a short
    length of copper track over the top.


    - Franc Zabkar
     
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