摘要:
A method of operating a semiconductor device includes performing a program operation on selected memory cells of a selected page, and selectively performing a soft erase operation on memory cells having threshold voltages greater than a reference voltage, among the selected memory cells, to reduce a width of a threshold voltage distribution of the selected memory cells.
摘要:
The present technology includes a memory device, a memory system including the memory device, and a test operation of the memory device. The memory device includes a memory block connected to word lines and select lines, a bit line connected to the memory block, a voltage generator configured to generate a test voltage to be applied to a selected line among the word lines and the select lines, a page buffer configured to sense a voltage of the bit line to store and output test data, and a control logic circuit configured to determine whether a first defect exists in the memory block according to the test data.
摘要:
A semiconductor device includes a channel layer including a sidewall having protrusions and depressions alternating with each other in a direction in which the channel layer extends, a tunnel insulating layer surrounding the channel layer, first charge storage patterns surrounding the tunnel insulating layer formed in the depressions, blocking insulation patterns surrounding the first charge patterns formed in the depressions, wherein the blocking insulating patterns include connecting portions coupled to the tunnel insulating layer, and second charge storage patterns surrounding the tunnel insulating layer formed in the protrusions.
摘要:
A semiconductor device includes at least one channel layer, insulating layers stacked on top of one another while surrounding the at least one channel layer, first grooves and second grooves alternately interposed between the insulating layers, wherein the first groves have a greater width than the second grooves having a second width, and conductive layers formed in the first grooves.
摘要:
A semiconductor memory device includes a memory cell array to which a plurality of word lines are coupled, a voltage generation circuit configured to apply operating voltages to the plurality of word lines during a program operation, and a control logic configured to control the voltage generation circuit to perform a discharge operation for the plurality of word lines when an external power supply voltage is reduced during the program operation, wherein the control logic controls the voltage generation circuit such that, during the discharge operation, a potential level of a selected word line among the plurality of word lines is discharged, and then potential levels of the other unselected word lines are discharged.
摘要:
There are provided a memory system and a method for operating the same. A memory system includes: a semiconductor memory device for outputting a ready/busy (R/B) signal by performing an internal operation in response to an operation command, and outputting status data by performing a status check operation in response to a status check command; and a controller for outputting the operation command and the status check command to the semiconductor memory device, and determining validity of the status data, based on the R/B signal.
摘要:
A semiconductor memory device according to an embodiment of the present invention may include a memory cell array having a plurality of memory cells, a pass transistor group having normal pass transistors coupled between global word lines and local word lines to which the plurality of memory cells are coupled, and an address decoder coupled to the global word lines and a block word line to which gates of the normal pass transistors are coupled in common, wherein the address decoder gradually increases a voltage, obtained by subtracting a voltage of the global word lines from a voltage of the block word line, when an erase voltage is provided to a channel of the plurality of memory cells.
摘要:
Provided herein may be a memory system and a method of operating the same. The memory system may include a controller configured to generate and output a first command for a program operation in response to a request from a host, and generate and output a second command for a read scan operation when the memory system is powered on after an abnormal power-off is detected; and a semiconductor memory device configured to perform the program operation on a page basis in response to the first command, perform the read scan operation in response to the second command, and perform a single read operation per page using a set read voltage during the read scan operation.
摘要:
Provided herein may be a semiconductor memory device and a method for operating the same. The semiconductor memory device may include a memory cell array, a peripheral circuit, control logic, a status storage unit, and an operating characteristic checking unit. The memory cell array may include memory cells. The peripheral circuit may perform an operation for writing data to the memory cell array, reading data from the memory cell array, or erasing data written to the memory cell array. The control logic may control the peripheral circuit so that a data write operation, a data read operation or a data erase operation is performed. The status storage unit may store an operational status of the memory cell array as a first status value. The operating characteristic checking unit may receive an operating characteristic value, and generate a second status value via a comparison with an operation threshold value.
摘要:
A semiconductor device includes a channel layer including a sidewall having protrusions and depressions alternating with each other in a direction in which the channel layer extends, a tunnel insulating layer surrounding the channel layer, first charge storage patterns surrounding the tunnel insulating layer formed in the depressions, blocking insulation patterns surrounding the first charge patterns formed in the depressions, wherein the blocking insulating patterns include connecting portions coupled to the tunnel insulating layer, and second charge storage patterns surrounding the tunnel insulating layer formed in the protrusions.