Micron Technology (NASDAQ: MU) has been on a tear over the past year. On Monday, May 21, the maker of DRAM and NAND flash memory held its 2018 Analyst Day. Not only did management increase the current quarter's guidance range for earnings per share, from a range of $2.76 to $2.90 to a much higher $3.12 to $3.16 per share, but key executives also outlined why Micron is primed for even more success in the coming years.The market seemed to agree, sending shares up almost 4%, with nearly another 4% surge in after-hours trading when new CFO Dave Zinsner made an announcement Micron investors have been waiting years to hear.