Patent ID: 6363014
Filing Date: 2002-03-26
Classification: G11C

Abstract:
A method of programming a NOR-type flash memory array, comprising the steps of:identifying a flash memory cell in the array for programming; coupling a source line associated with the identified cell to a source programming voltage potential, wherein coupling the source line comprises individually selecting the source line associated with the identified cell, and wherein individually selecting the source line associated with the identified cell comprises: coupling the source line associated with the identified flash cell to a circuit ground potential; and allowing one or more other source lines associated with the flash memory array to float; coupling a bitline associated with the identified flash memory cell to a voltage potential which is greater than the source programming voltage potential, wherein the coupled bitline comprises a selected bitline; coupling one or more non-selected bitlines to a voltage potential which is less than the voltage potential of the selected bitline; and coupling a programming voltage to a wordline associated with the identified cell.