To a point does sounds like in the interest of use with ideas of chips, they are the first to make 300mm "Thin Wafers". Given at times having 200mm wafers to a point more "viable" then a 300mm wafer. Rather a difference for say, is probably any guess of course. Given there has been 300mm say wafers before. AS rather for any interest within use for what might be of interest within given maybe who does and does not make them as well. Rather is normal for the size or not, I don't know.
As for term of quantum im not sure. Usually think within the idea of usage within termanology or the like usually has a varying place of say use. To say on some ideas the use of such might have more then one appliance of such within for a use, might be say "quantum" within its own use or say, maybe more towards say of use of course though. I don't know though for the most part either probably to a decent point.
Think quantum usually places alot of interest within deeper interest of say studies more then not, namely some form of one more then another. Maybe not though as well, and the usejust finds a fitting for what the intial interest of the say "term" implies or applies too.
More lost on MOSFETs then anything, for interest of like wafers nd the such might be placed within ideas of the same within interest of relating place of use for one, I don't know. Think had thought it was a brand name/brandname more then anything.