Invention Grant
US08406052B2 High voltage generation and control in source-side injection programming of non-volatile memory 有权
非易失性存储器的源侧注入编程中的高压发生和控制

High voltage generation and control in source-side injection programming of non-volatile memory
Abstract:
Non-volatile memory is programmed using source side hot electron injection. To generate a high voltage bit line for programming, the bit line corresponding to a selected memory cell is charged to a first level using a first low voltage. A second low voltage is applied to unselected bit lines adjacent to the selected bit line after charging. Because of capacitive coupling between the adjacent bit lines and the selected bit line, the selected bit line is boosted above the first voltage level by application of the second low voltage to the unselected bit lines. The column control circuitry for such a memory array does not directly apply the high voltage and thus, can be designed to withstand lower operating voltages, permitting low operating voltage circuitry to be used.
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