Cool heatsink and small gold plated circuit boards.

[pimpneightez]

Not everyday a guy like me finds a 6 pound aluminium heat sink. Any ideas on what's in the wierd epoxy bumps? Came from some sort of Siemens control box. The white looking thing with gold plating was sandwiched with an LCD screen and the circuit board. That was just a bonus. I consider the heat sink and copper scrap the real prize. It had 3 big copper coils and a hand full of copper connectors.

 

[butcher]

Any ideas on what's in the weird epoxy bumps?
Integrated circuits (IC), just not in the ceramic or plastic package you may recognize.

 

[Smack]

Ebay people love large aluminum heat sinks.

 

[pimpneightez]

Just checked eBay. You get some nice cash for those. It was actually a starter for an elevator. Any gold bonding wires in the IC? I've seen those on touchpad for laptops I think. Never knew what it was. Thought it might have been something covered for heat protection.

 

[Justincase]

The large heat sinks are very good for running the new high powered L.E.D.'s.
I use them for my fish.

 

[Anonymous]

Oooooh I get a lot of large heatsinks.

 

[robertismo]

Hey guys,
i know this is a little late, but, i've run across quite a few of those epoxy "bumps" in old honeywell control units for heat treating furnaces. If you take a blade or scraper to the base of it, it will usually pop off (sometimes they break into small pcs so you then have to more-less scrape it off). Just be careful when doing so because they will have a gold plated surface underneath (at least the ones i have seen) much like the other surfaces on that card. Almost like finger plating. Hope that helps any!

-Rob W