Electronic Design Editor Bill Wong talks with Miin Wu, Chairman and CEO at Macronix International, about the company’s 3D NOR technology. 2D NOR flash challenges. Why do we need 3D NOR flash memory?

Evolving from the EEPROM chip, flash was invented by Toshiba in ... blocks so there are always "clean" blocks to write to. NOR flash is used for program execution similar to RAM.