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Science Forum Index » Electronics - Components Forum » Gold Recovery/Refining of ICs (Integrated Circuits) - lookin
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| mo |
 Posted: Fri Feb 09, 2007 10:09 am |
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Does anyone know of an honest reputable Gold Refinery that has much
expertise/proficiency in processing Electronic Integrated Circuits
(IC) chips/components for Gold Recovery/Reclamation? Or does anyone
know how to find such information. |
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| Eeyore |
| Posted: Fri Feb 09, 2007 11:58 am |
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mo wrote:
Quote: Does anyone know of an honest reputable Gold Refinery that has much
expertise/proficiency in processing Electronic Integrated Circuits
(IC) chips/components for Gold Recovery/Reclamation? Or does anyone
know how to find such information.
Why would you expect to find gold in ICs ?
Graham |
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| Old Mac User |
| Posted: Fri Feb 09, 2007 12:41 pm |
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Quote:
Why would you expect to find gold in ICs ?
Graham
The tiny little wires that conned the circuits ons the chips to the
pins are made of pure gold. They are extremely small. You'd need to
open up a heck of a lot of chips to get just one gram of gold. OMU |
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| Eeyore |
| Posted: Fri Feb 09, 2007 2:22 pm |
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Old Mac User wrote:
Quote: Why would you expect to find gold in ICs ?
Graham
The tiny little wires that conned the circuits ons the chips to the
pins are made of pure gold.
Aluminium.
Graham |
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| Nermal |
| Posted: Sat Feb 10, 2007 10:18 am |
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Guest
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Most of the old ICs have gold bond wires in addition to the Au/Si die
attach material. Many of them used a Gold/Tin solder to attach the
metal lid. There are tons of these old ICs out there that are heading
for land fills.
It has been a few years since I saw any ads by refineries. I suspect
many of the old MIL grade components are finding their way to China for
recycling into new MIL grade component!
mo wrote:
Quote: Does anyone know of an honest reputable Gold Refinery that has much
expertise/proficiency in processing Electronic Integrated Circuits
(IC) chips/components for Gold Recovery/Reclamation? Or does anyone
know how to find such information.
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| Chris Jones |
| Posted: Sat Feb 10, 2007 4:13 pm |
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Eeyore wrote:
Quote:
Old Mac User wrote:
Why would you expect to find gold in ICs ?
Graham
The tiny little wires that conned the circuits ons the chips to the
pins are made of pure gold.
Aluminium.
Graham
For a lot of plastic packaged ICs they are gold bondwires. I was surprised
to find that this is especially true for a lot of high pin-count ICs used
in consumer products.
Chris |
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