摘要:
A program method of a three-dimensional nonvolatile memory device is provided which includes executing at least one program loop including an operation of programming selected memory cells of a selected string turned on by a selected string selection transistor and an operation of verifying whether programming of the memory cells is passed; and applying a negative counter voltage to a selected word line connected to the selected memory cells of the selected string at least once during an interval of the verify operation where there are turned on string selection transistors of unselected strings connected through the same bit line as that of the selected string.
摘要:
A memory system includes a nonvolatile memory device, and a memory controller configured to control the nonvolatile memory device such that memory cells connected with a selected row of the nonvolatile memory device are programmed by one of a first program mode and a second program mode. At the first program mode, a plurality of logical pages corresponding in number to a maximum page number is stored at the memory cells, and at the second program mode, one or more logical pages the number of which is less than the maximum page number are stored at the memory cells using a bias condition that is different from that used in the first program mode.
摘要:
A read method of a nonvolatile memory device includes reading data from a selected memory area of the nonvolatile memory device according to a first read voltage; detecting and correcting an error of the read data; and deciding a second read voltage for reading the selected memory area when an error of the read data is uncorrectable. The second read voltage is decided according to either the number of logical 0s or 1s included in the read data, or a ratio of logical 1s to logical 0s in the read data.
摘要:
An operating method of a storage device which includes a nonvolatile memory is provided. The operating method includes performing a first program operation on selected memory cells of the nonvolatile memory and storing a first time when the first program operation is performed; and adjusting a program parameter according to a difference between the first time and a second time, and performing a second program operation on the selected memory cells using the adjusted program parameter, the second time being a time when the second program operation is performed.
摘要:
A nonvolatile memory device includes a cell array including a plurality of cell strings extending on a substrate in a vertical direction, a page buffer connected to a plurality of bit lines and configured to store sensing data of the cell array in a sensing operation, a voltage generator configured to provide voltages to a plurality of word lines and the plurality of bit lines, and an input/output buffer configured to temporarily store the sensing data received in a data dump from the page buffer and to output the temporarily stored data to an external device. The nonvolatile memory device further includes control logic configured to set a status of the nonvolatile memory device to a ready state after the sensing data is dumped to the input/output buffer and before recovery of the cell array from a bias voltage of the sensing operation is complete.
摘要:
A method of operating a storage device having a nonvolatile memory including at least one memory block having a plurality of sub-blocks includes reading backup data of backup memory cells having a highest program state among a plurality of memory cells connected to at least one word line of a sub-block which is not erase-requested adjacent to an erase-requested sub-block among the sub-blocks. The method includes storing the backup data, erasing the erase-requested sub-block, and reprogramming the backup memory cells having the highest program state on the basis of the backup data.
摘要:
A method operating a nonvolatile memory device includes successively programming a memory cell without physically erasing the memory cell. Each successive programming of the memory cell uses a different erase state region to indicate an erase state for the memory cell.
摘要:
An operating method is for operating a memory controller which controls a non-volatile memory device. The non-volatile memory device includes a plurality of memory cells arranged in a direction perpendicular to a substrate. The operating method includes erasing the plurality of memory cells, reading memory cells connected with a first word line using a first word line voltage to search string address information corresponding to memory cells being at an off state, and programming memory cells corresponding to the string address information to a particular program state based on the string address information to store mapping information.
摘要:
A nonvolatile memory includes a memory cell array, a row decoder circuit, and a page buffer circuit. The row decoder circuit applies a turn-on voltage to string selection lines, which are connected to string selection transistors of a selected memory block, at a first precharge operation in response to a write command received from an external device. The page buffer circuit applies, in response to the write command, a first voltage to bit lines, which are connected to the string selection transistors, through a first precharge circuit at the first precharge operation regardless of loaded data and applies the first voltage and a second voltage to the bit lines through a second precharge circuit at a second precharge operation based on the loaded data. During the first precharge operation, write data is loaded onto the page buffer circuit.
摘要:
A program method for a memory system including a three-dimensional nonvolatile memory having multi-level memory cells and a random access memory. The method uses the random access memory to variously store selected bits of multi-bit data during the programming of a row of memory cells in the three-dimensional nonvolatile memory.