摘要:
A memory device and method thereof are provided. The example memory device may include a first buffer receiving most significant bit (MSB) data and least significant bit (LSB) data to be stored within a memory cell, a second buffer loading stored LSB data stored from the memory cell and a data loader generating at least one load signal based upon logic levels of the received MSB data from the first buffer and the loaded LSB data from the memory cell, the at least one load signal controlling programming permissions for the memory cell. The example method may include receiving LSB data, storing the received LSB data within a memory cell, receiving MSB data, loading the LSB data from the programmed memory cell, generating at least one load signal based upon logic levels of the received MSB data and the loaded LSB data, the at least one load signal controlling programming permissions for the memory cell and storing the MSB data within the memory cell based on the at least one load signal.
摘要:
An erase voltage generation circuit providing a uniform erase execution time and a non-volatile semiconductor memory device having the same, in which the erase voltage generation circuit includes a high voltage generation unit, a voltage level detection unit, an execution time checking unit and a discharging unit. The high voltage generation unit generates an erase voltage. The voltage level detection unit detects the erase voltage and generates a level detection signal. The level detection signal is activated when the erase voltage reaches a target voltage. The execution time checking unit generates an execution end signal that is activated in response to the lapse of an erase execution time from the activation of the level detection signal. The discharging unit discharges the erase voltage as a discharge voltage. The high voltage generation unit is disabled in response to the activation of the execution end signal, and the discharging unit is enabled in response to the activation of the execution end signal.
摘要:
A semiconductor device and a method for manufacturing the same are disclosed. In the semiconductor device, an upper part of a storage node contact plug is increased in size, and an area of overlap between a storage node formed in a subsequent process and a storage node contact plug is increased, such that resistance of the storage node contact plug is increased and device characteristics are improved. The semiconductor device includes at least one bit line formed over a semiconductor substrate, a first storage node contact plug formed between the bit lines and coupled to an upper part of the semiconductor substrate, and a second storage node contact plug formed over the first storage node contact plug, wherein a width of a lower part of the second storage node contact plug is larger than a width of an upper part thereof.
摘要:
A flash memory device includes a memory block including word lines arranged between a first selection line and a second selection line, the word lines being divided into a first group and a second group, a control logic configured to determine an activation order of the first and second selection lines and determine first and second read voltages to be supplied to unselected word lines, the control logic determining the activation order according to whether a selected word line belongs to the first group or the second group, and a row selection circuit configured to, during a read operation, drive the unselected word lines with the first and second read voltages, and activate the first and second selection lines, according to the control logic.
摘要:
There is provided an apparatus for duty cycle correction. The apparatus for duty cycle correction comprises a moving sum unit performing a moving sum calculation with respect to the square-wave signal and outputting the moving sum signal subjected to moving sum calculation, a comparison unit comparing the moving sum signal with a predetermined threshold voltage, outputting a high signal or low signal, a mean value calculation unit calculating the mean value of an output signal outputted from the comparison unit, the output signal being included in a section having a period integer times greater than that of the square-wave signal, and a threshold voltage control unit comparing the mean value with a middle value, increasing the threshold voltage when the mean value is greater than the middle value, and decreasing the threshold voltage when the mean value is less than the middle value.
摘要:
A molecular electronic device, and a method of fabricating the same, includes a first electrode having a plurality of prominences and depressions on which a plurality of molecules are self-assembled. Capacitance of a molecular electronic device used as a capacitor is increased by forming prominences and depressions on the surface of the first electrode thereby enabling more molecules to be self-assembled on the surface of the lower electrode.
摘要:
Disclosed is a program method for a flash memory device which includes; storing data in a buffer memory and generating a high voltage as a word line voltage. When transmission of data to the buffer memory is complete, the program method simultaneously transfers data in the buffer memory to a page buffer circuit, and programs data in the page buffer circuit in a memory cell array according to the word line voltage.
摘要:
An erase voltage generation circuit providing a uniform erase execution time and a non-volatile semiconductor memory device having the same, in which the erase voltage generation circuit includes a high voltage generation unit a voltage level detection unit, an execution time checking unit and a discharging unit. The high voltage generation unit generates an erase voltage. The voltage level detection unit detects the erase voltage and generates a level detection signal. The level detection signal is activated when the erase voltage reaches a target voltage. The execution time checking unit generates an execution end signal that is activated in response to the lapse of an erase execution time from the activation of the level detection signal. The discharging unit discharges the erase voltage as a discharge voltage. The high voltage generation unit is disabled in response to the activation of the execution end signal, and the discharging unit is enabled in response to the activation of the execution end signal.
摘要:
An erase voltage generation circuit providing a uniform erase execution time and a non-volatile semiconductor memory device having the same, in which the erase voltage generation circuit includes a high voltage generation unit, a voltage level detection unit, an execution time checking unit and a discharging unit. The high voltage generation unit generates an erase voltage. The voltage level detection unit detects the erase voltage and generates a level detection signal. The level detection signal is activated when the erase voltage reaches a target voltage. The execution time checking unit generates an execution end signal that is activated in response to the lapse of an erase execution time from the activation of the level detection signal. The discharging unit discharges the erase voltage as a discharge voltage. The high voltage generation unit is disabled in response to the activation of the execution end signal, and the discharging unit is enabled in response to the activation of the execution end signal.
摘要:
A molecular electronic device, and a method of fabricating the same, includes a first electrode having a plurality of prominences and depressions on which a plurality of molecules are self-assembled. Capacitance of a molecular electronic device used as a capacitor is increased by forming prominences and depressions on the surface of the first electrode thereby enabling more molecules to be self-assembled on the surface of the lower electrode.