Patent ID: 7602641
Filing Date: 2009-10-13
Classification: G11C

Abstract:
1. A method of making a non-volatile memory (NVM) cell structure, the method comprising: forming a first NVM cell; forming a second NVM cell: forming a static random access memory (SRAM) cell that includes first and second data nodes; forming a first pass gate structure connected between the first NVM cell and the first data node of the SRAM cell, the first pass gate structure being responsive to first and second states of a first pass gate signal to respectively couple and decouple the first NVM cell and the SRAM cell; forming a first equalize structure connected between the first pass gate structure and the first NVM cell and responsive to a first equalize signal to connect the first NVM cell to ground; forming a second pass gate structure connected between the second NVM cell and the second data node of the SRAM cell, the second pass gate structure being responsive to first and second states of a second pass gate signal to respectively couple and decouple the second NVM cell and the SRAM cell; and forming a second equalize structure connected between the second pass gate structure and the second NVM cell and responsive to a second equalize signal to connect the second NVM cell to ground.