FAST PROGRAM, AND FAST SWITCHING METHOD TO VERIFYING PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a program and a new method for verifying a program. SOLUTION: The threshold voltage of a memory cell is increased by the minimum charge and discharge of bit lines and control gate lines, and successively, the voltage is measured. Also, the capacity between the bit lines and the control gate lines is used to reduce the number of required voltage references. A program current is reduced by using a load device connected to a source diffusion region. Consequently, the band width of a program is increased by a low current consumption of a high voltage charge pump.