摘要:
A method of programming a nonvolatile memory device including a plurality of memory cells includes providing a plurality of program loops having a corresponding plurality of program voltages associated therewith. A first one of the plurality of program loops is activated to generate a first program voltage to program a first one of the plurality of memory cells. A second one of the plurality of program loops is activated to generate a second program voltage to program a second one of the plurality of memory cells.
摘要:
A method of programming a nonvolatile memory device including a plurality of memory cells includes providing a plurality of program loops having a corresponding plurality of program voltages associated therewith. A first one of the plurality of program loops is activated to generate a first program voltage to program a first one of the plurality of memory cells. A second one of the plurality of program loops is activated to generate a second program voltage to program a second one of the plurality of memory cells. Related devices are also discussed.
摘要:
Control circuits for a voltage regulator of a semiconductor memory device include an option fuse circuit and a fusing control circuit. The option fuse circuit includes a plurality of fuses and a selection circuit that selects one of the plurality of fuses responsive to a control signal. An output voltage associated with the voltage reset circuit is adjusted responsive to a state of the selected one of the plurality of fuses. A fusing control circuit generates the control signal to allow multiple adjustments of the output voltage by the voltage reset circuit. The option fuse circuit may be a plurality of option fuse circuits and the output voltage may be adjusted responsive to the states of the respective selected ones of the plurality of fuses of the option fuse circuits.
摘要:
A non-volatile memory device includes non-volatile memory cells, a respective one of which is configured to store a single bit in a single bit mode, and to store more than one bit in a multi-bit mode. A single voltage divider is configured to generate at a least a first program voltage for the non-volatile memory cells in the single bit mode, and to generate at least a second program voltage that is different from the first program voltage, for the non-volatile memory cells in the multi-bit mode.
摘要:
A semiconductor memory device comprises a cell array including a plurality of memory cells. The semiconductor memory device further comprises a plurality of bitlines formed in a bit layer and connected to the plurality of memory cells, wherein the bitlines extend from the cell array along a single direction. A common source line is formed in a common source layer and adapted to provide a predetermined source voltage to the plurality of memory cells. A voltage control block comprising a plurality of voltage control circuits adapted to control the voltage levels of the plurality of bitlines through voltage supply lines formed in a voltage-line metal layer is formed on one side of the cell array.
摘要:
The present invention disclosed herein is a high voltage generator circuit. The high voltage generator circuit includes a charge pump and a pump clock signal generator. The pump clock signal is gated to the charge pump when the high voltage is below a target voltage. After the high voltage reaches the target voltage, the high voltage cyclically falls below the target voltage. After the high voltage reaches the target voltage, a pump clock generator block circuit limits the transmission of the pump clock signal so that only N clock signals are gate to the charge pump each cycle, where N is the number one or greater.
摘要:
Control circuits for a voltage regulator of a semiconductor memory device include an option fuse circuit and a fusing control circuit. The option fuse circuit includes a plurality of fuses and a selection circuit that selects one of the plurality of fuses responsive to a control signal. An output voltage associated with the voltage reset circuit is adjusted responsive to a state of the selected one of the plurality of fuses. A fusing control circuit generates the control signal to allow multiple adjustments of the output voltage by the voltage reset circuit. The option fuse circuit may be a plurality of option fuse circuits and the output voltage may be adjusted responsive to the states of the respective selected ones of the plurality of fuses of the option fuse circuits.
摘要:
The present invention disclosed herein is a high voltage generator circuit. The high voltage generator circuit includes a charge pump and a pump clock signal generator. The pump clock signal is gated to the charge pump when the high voltage is below a target voltage. After the high voltage reaches the target voltage, the high voltage cyclically falls below the target voltage. After the high voltage reaches the target voltage, a pump clock generator block circuit limits the transmission of the pump clock signal so that only N clock signals are gate to the charge pump each cycle, where N is the number one or greater.
摘要:
A non-volatile memory device includes non-volatile memory cells, a respective one of which is configured to store a single bit in a single bit mode, and to store more than one bit in a multi-bit mode. A single voltage divider is configured to generate at a least a first program voltage for the non-volatile memory cells in the single bit mode, and to generate at least a second program voltage that is different from the first program voltage, for the non-volatile memory cells in the multi-bit mode.
摘要:
Provided is a voltage regulator. The voltage regulator includes a level down shifter reducing an applied high voltage, a voltage divider dividing the reduced high voltage to generate a first division result, a comparator comparing a reference voltage to the first division result, and a driver generating an output voltage based on the comparison result and providing the output voltage to the voltage divider. The voltage divider divides the output voltage to generate a second division result serving as a voltage control signal fed back to the level down shifter.