Desoldering firmware

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

  1. SleeplessDad

    Thread Starter New Member

    Jan 25, 2009
    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
    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?

  3. SleeplessDad

    Thread Starter New Member

    Jan 25, 2009
    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?