Desoldering firmware

Discussion in 'General Electronics Chat' started by SleeplessDad, Jan 26, 2009.

  1. SleeplessDad

    Thread Starter New Member

    Jan 25, 2009
    2
    0
    Hi Everyone

    This is my first post.

    I would like to desolder and create back up copies of some firmware that is soldered to the board. The form factor is PLCC. I am worried about the data integrity with all the heat. Does anyone have some tips for me?

    Has anyone used Chip Quik?

    I have a hot air nozzle but I have limited experience with it still.

    Thanks for reading-Patrick
     
  2. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
    5,699
    906
    I have used Chip Quik with lead/tin solder. It helps. I believe it is just a bismuth solder that makes a lower melting alloy with lead/tin. It has been a few years since I used it. I suspect it will work with lead-free solder, but that is something I would check before trying it, assuming your chip may be soldered with lead-free solder.

    Are you sure you can read the chip once it is removed from the board?

    John
     
  3. SleeplessDad

    Thread Starter New Member

    Jan 25, 2009
    2
    0
    Thanks for your reply John

    NO! actually I am not sure if it can be read, I am scared! ;-)

    I have a job to fix nearly 1000 boards but I believe some of the chips that are in question are firmware.

    Has anyone tried this?
     
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