Patent ID: 7088616
Filing Date: 2006-08-08
Classification: G11C,H01L

Abstract:
1. A non-volatile semiconductor memory device comprising: an electrically data rewritable non-volatile memory cell; and a write circuit configured to write data in the memory cell, the write circuit writes a data in the memory cell by supplying a write voltage and a write control voltage to the memory cell, continues the writing of the data in the memory cell by changing the supply of the write control voltage to the memory cell in response to an advent of a first write state of the memory cell and inhibits any operation of writing a data to the memory cell by further changing the supply of the write control voltage to the memory cell in response to an advent of a second write state of the memory cell, wherein the write circuit does not change a supply state of the write control voltage when the write voltage is being continuously supplied to the memory cell.