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I am replacing the display IC from the original screen and scraped away the black layer of adhesive and what could have been the top layer of the chip. Is this still usable after reballing or is it damaged. Very new to this stuff. Thanks!
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Hi
When removing chips you will get some minor defects
It your case it looks ok as I can’t see any obvious bits of exposed copper or any chipped or dented bits of the chip
If you want to you could apply a very very thin layer of solder mask where it has been removed (if you do make sure to not get it in the pads,if you do you can carefully scrape it off the pads)to help if you have any on hand
I would put the chip on(after Reballing)and see if it works and if it doesn’t replace it with a new one as small chips like this aren’t expensive to replace:-)
Hopefully this helps
Any questions please ask
Thanks:-)
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@hellomacos is correct. Apply solder mask than re-ball the IC as it does not seem damaged.
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I wouldn't take a chance and waste your time the chip is only a couple of dollars so I would just replace it with a new one.
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Reball it and try it. Doesn't look too bad to be honest. You've gone this far. Let us know the outcome. Good luck.
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