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Thread: Gold in keyboard?

  
  1. #1
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    Smile Gold in keyboard?

    sure looks like it. Or is it brass/copper? Took apart a very old keyboard and this is what I found.





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    Might also be some under the black dot on the board.
    As a driver I'm always sober, but my truck is always ready to get loaded

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    I'm pretty sure that's an IC chip under that black dot - not sure about any gold there.

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    Quote Originally Posted by waredu View Post
    I'm pretty sure that's an IC chip under that black dot - not sure about any gold there.

    I think that is COB (Chip On Board) with possible gold or aluminum wire bonding.
    PDF has a diagram to explain.
    www.fkdelvotec.at/files/press/COB_E2.pdf

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    should I peel that covering off?

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    I would leave it as is. Removing it also removes all the bonding wires.

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