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