US Patent 7787308 Flash memory device and program method thereof

A method for programming a flash memory device comprising programming memory cells via repetition of program loops, a first of the program loops including a program execution interval and a verify read interval, a second of the program loops including the program execution interval, the verify read interval, and a judging interval. Also disclosed is a flash memory device comprising a memory cell array having memory cells arranged in rows and columns, a read/program circuit configured to perform program and read operations to the memory cell array, and a control logic circuit configured to control the read/program circuit so as to perform a judging operation according to a program loop number.