Jonathan Raa | Nurphoto | Getty ImagesMicron topped a $1 trillion market value for the first time on Tuesday as shares popped 19%, driven by insatiable artificial intelligence demand for its memory chips.The stock surge came as UBS tripled its price target on the stock from $535 to $1,625 a share, citing long-term agreement opportunities with partially fixed pricing."We believe the market will start to put a more 'normal' multiple on the stock and MU will continue to re-rate higher as more detai...