My understanding is that there are two issues. Manufacturing defects cause the copper to oxidize, and the processors themselves request more voltage than required or needed, causing excess oxidation damage. Intel said they cleared up the manufacturing defect issue sometime around October 2023
My understanding was that the microcode was causing too much power draw which caused the oxidation.
Tbh, I’ve read/heard lots of speculation, and I don’t exactly trust Intel to be telling the entire truth.
My understanding is that there are two issues. Manufacturing defects cause the copper to oxidize, and the processors themselves request more voltage than required or needed, causing excess oxidation damage. Intel said they cleared up the manufacturing defect issue sometime around October 2023