awesome work Tzoax, but when you are talking about manually removing components each worth about 0.00037 EUR, the line between genius and crazy gets kind of blurry
If you are still looking for ideas what to test next, I wouldn`t mind finding out if there is any gold in these kinds of chips from brown boards:
1)Little IC's in the middle of an optical mouse - there's definitely some gold there, you can brake the chip open and see the gold bond wires with a naked eye, but what would the yield be, Is it worth removing?
2)Connector/plug on the edge of a floppy board - worth breaking off? what's the value, per?
3)Little 4-sided IC's on the "green" side (or underside) of the floppy boards - any gold there at all, worth cutting off?
4)Actually many so called brown-boards (from, TV, etc) have these kinds of chips on their, usually green-colored underside - worth cutting off?
5)Also many brown-boards have some rather large, bulky DIP IC`s, they can be cut off easily enough with a knife, but what's the chance of gold bonding wires being there?
All these type of low-grade boards I currently sell in one category, by the ton, to a local copper manufacturer, no gold is being recovered there and there are absolutely no requirements for intact IC's, I can`t shake the feeling that I am missing out on possible value if I leave these on... I`ve heard that there are some buyers for the category of separated "floppy boards", And of course, I realize I can just sell picked off IC`s (and connectors) separately, weigh them, time myself removing them and draw these conclusions myself... But it is not even close to the same level of satisfaction that would come from knowing for sure how much gold is in each of these type of components