Muncy, Geissler, Olds & Lowe, P.C.
Constant sensing current for reading resistive memory
Systems and methods relate to providing a constant sensing current for reading a resistive memory element. A load voltage generator provides a load voltage based on a current mirror configured to supply a constant current that is invariant with process-voltage-temperature variations. A data voltage is generated based on the generated load voltage, by passing a sensing current mirrored from the constant current, through the resistive memory element. A reference voltage is generated, also based on the generated load voltage and by passing reference current mirrored from the constant current, through reference cells. A logical value stored in the resistive memory element is determined based on a comparison of the data voltage and the reference voltage, where the determination is free from effects of process-voltage-temperature variations.
QUALCOMM Incorporated
G G G G G G G
G11C G11C G11C G11C G11C G11C G11C
additional inventional inventional additional inventional inventional inventional
Jung Pill Jisu Taehui Seong-Ook Seung Hyuk Sara
Kim Kim Na Jung Kang Choi