[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Re: Surface Mount Repair



The IC may be held to the board with thermally setting epoxy. You can heat 
the IC with a hot air gun. This will over cure the epoxy and allow you to 
remove the IC without board damage. Use a small nozzle on the hot air gun 
and direct the heat to the IC. Use a dental pick as a pry bar under the IC 
to remove it as you are applying heat.

73
Glenn
WB4UIV



At 05:38 PM 11/03/07, Roy wrote:
>Hi Guys,
>
>I am trying to replace a 22 pin surface mount IC on a piece of Panasonic
>video quipment.  I have all of the leads unsoldered but now I find that
>the IC is stuck to the board, maybe intentionally.  It doesn't appear to
>be just the circuit board coating.  It's more like the whole bottom
>surface is cemented.
>
>I would appreciate hearing from anyone, off line, who has experience in
>removing a stuck IC from the board.  I have tried flux removerand 91%
>Isopropal Alcohol with no luck.  I hesitate to force it or destroy the
>chip since there are traces running beneath it.  Any ideas of a safe
>solvent or another way to unstick this thing?
>
>--
>Roy -- W0SL
>_______________________________________________
>Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
>Not an AMSAT-NA member? Join now to support the amateur satellite program!
>Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb


_______________________________________________
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb



AMSAT Top AMSAT Home