Most older caps are copper. Newer ones tend to be aluminium.
A few companies use other metals. AMD is known for their tungsten spreaders.
The plating varies. Gold was very common in the 70s because it was so inexpensive then. Tin is very common today as it works well for shielding as well. Today tin on copper, tin on aluminium, and straight aluminium are most common. AMD still uses tungsten alloys. It’s not worth removing caps EXCEPT
4000 and 25x series intel from the early mid 70s. If you can do so without damaging the tiny fragile thin chips; the gold + cpu rates are slightly higher. Soviet CPUs. The CCCP had massive gold reserves and utilised them. Same issue as early intel. AMD k6 series runs from 3-5 and k7. Heavy tungsten rather than alloys. Only if you have a buyer.
_________________ 42 6F 61 72 64 73 6F 72 74 2E 63 6F 6D
|