发明名称 Bitline voltage regulation in non-volatile memory
摘要 <p>Systems and methods are provided to minimize write disturb conditions in an untargeted memory cell of a non-volatile memory array. Bitline driver circuits are provided to control a ramped voltage applied both to a bitline of a target memory cell and a neighboring bitline of an untargeted memory cell. Various embodiments advantageously maintain the integrity of data stored in the untargeted memory cells by applying a controlled voltage signal to a previously floating bitline of a neighbor cell to reduce a potential difference between the source and drain nodes of the untargeted neighbor memory cell during a write operation at a target memory cell. In another embodiment, an increased source bias voltage is applied on a“source”bitline of the target cell during the ramping of the drain bias voltage and then reduced to a ground or near ground potential during the write operation.</p>
申请公布号 GB201501977(D0) 申请公布日期 2015.03.25
申请号 GB20150001977 申请日期 2013.07.29
申请人 SPANSION LLC 发明人
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