Fix: Silicon removal from ICs

Discussion in 'Modding and Hacking - Consoles and Electronics' started by APE, Jun 6, 2011.

  1. APE

    APE Site Supporter 2015

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    I've seen this fix applied to an old piece of arcade hardware here somewhere on the board so I decided to give it a shot.

    When I first got ahold of some chips for a DC replacement BIOS I hadn't had much experience with piggybacking chips on each other...so I kinda screw up. I kept this DC around in hopes I'd figure something out and fix it later.

    Sorry about the quality but I hope it gets the point across:

    [​IMG]

    /RESET and /CE both had their pins lifted presumably because I didn't lay the wires flat enough against the board and they got caught with the shielding. In this case I used my Dremel tool to grind away at the casing to expose the inner copper. Tinned it and added wires going to the appropriate points and she booted right back up.

    Of course do clean up when you're finished. You can see the silicon dust from the grinding everywhere. It shouldn't be electrically conductive on its own but don't risk it. Also if you can, DON'T BREATH THE DUST IN EITHER! Enough of it does this:

    http://en.wikipedia.org/wiki/Silicosis

    Things to do that I didn't here:
    1) Use a fresh grinding wheel, or at least use one that doesn't have a "lip" on it.
    2) Really good lightening helps.
    3) Cover the entire board around the chip very closely. Eliminates most of the cleanup.
    4) ???
    5) Profit.

    Not as much of the casing has to be removed as in the picture, but since my grinding attachment had a "lip" and wasn't the most optimal size more got removed than was necessary. However, it works just fine.
     
sonicdude10
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