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Old 30th January 2010, 06:28 AM   #1
nonsub is offline nonsub  Canada
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Default Copper tape atop IC's?

I was looking at some pics of modded equipment. One fellow seemed to like to put copper tape on top of all IC's, wire them to eachother (and assumedly tie to digital ground.) Is this know to actually do anything? Thanks!
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Old 30th January 2010, 07:56 AM   #2
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It may shield some RF emission or irridation.
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Old 30th January 2010, 08:17 AM   #3
infinia is offline infinia  United States
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Quote:
Originally Posted by SmellOfPoo View Post
It may shield some RF emission or irridation.
Or make it worse esp if not grounded really well. LOL
If you polish it up it looks real purty tho
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Old 30th January 2010, 08:24 AM   #4
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I've done that on some RF equipment to improve stability,and 'clean up' some digital noise..It helps. One drawback with RF circuitry,is that it can change the stray capacitance,and de-tune things slightly,so you might need to compensate.
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Old 30th January 2010, 08:36 AM   #5
infinia is offline infinia  United States
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Originally Posted by DigitalJunkie View Post
I've done that on some RF equipment to improve stability,and 'clean up' some digital noise..It helps. One drawback with RF circuitry,is that it can change the stray capacitance,and de-tune things slightly,so you might need to compensate.
But I hope you were staring at a spectrum analyzer when you tried it. LOL Adding metal on a digital section in my experience has never made anything better, it usually involved cutting.
Besides applying RF bandaid's are just used for discovering the true cause of a bigger issue best solved by other means. I don't think anyone can say in their right mind, by globally sticking random pieces of foil atop IC's will be an improvement, sorry.

EDIT>Thermally it would make it worse than just basic black plastic.
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Last edited by infinia; 30th January 2010 at 08:47 AM.
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Old 30th January 2010, 10:34 AM   #6
wwenze is offline wwenze  Singapore
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What about sticking blu-tacks?
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Old 30th January 2010, 02:56 PM   #7
nonsub is offline nonsub  Canada
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Do the tuning dots go under on on top of the copper then LMFAO
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Old 30th January 2010, 03:35 PM   #8
wwenze is offline wwenze  Singapore
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Do the tuning dots go under on on top of the copper then LMFAO
Uh oh... looks like they didn't account for compatibility.

But since everything that can be done will increase sound quality, I guess either way is fine.
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Old 30th January 2010, 08:40 PM   #9
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Is it to provide a heatsink. Grounded to dissipate any accumulated charge?
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Old 1st February 2010, 08:50 AM   #10
EC8010 is offline EC8010  United Kingdom
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It's to provide an electrostatic screen against all the clattering going on inside the IC. But to be effective, it needs a low inductance path to ground, and that means it needs to bond directly to a ground plane at each end of the IC.
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