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The secrecy at Intel is legendary. When I worked in a little building in Santa Cruz, CA with only 12 people the security folks from Santa Clara would randomly send over an unannounced stranger to see how much intellectual property that he could steal from our building, and the good news is that we caught the "thief" every time. We even placed nonsensical watermark mask geometries into each IC layout, just in case a competitor stole the masks or reverse engineered the layout, so that we could prove in a court of law that the watermark had also been literally copied. Any Intel employee that answered your yield question would be immediately fired and likely taken to court. So good luck with that.Does anyone know the cause of poor yields? I have heard Cobalt or lining of Cobalt or Quad Patterning. If it's Quad, they should have moved to EUV earlier, but then again I am biased toward EUV.
Yes, and any vendor that leaks what is happening inside of an Intel fab will never set foot in Intel again, and likely end up in court, because they must sign a Non Disclosure Agreement.Rumors do trickle out of a fab, esp since vendors are in the fab trying to improve the equipment/process that is "causing" the problem. Even a bystander in the fab can see where all the effort is going when there is a yield problem.
Intel had been driving EUV before Samsung or TSMC. There wasn't a strong enough source for a long while. Even now, the power level is topping out, so new types are being considered.EUV could have been earlier if they had not decreased funding for it at a critical stage in its development in 2005. They had just developed 193i with a researcher at RIT, as I recall