Patent classifications
G11C16/3481
PARTIAL BLOCK HANDLING IN A NON-VOLATILE MEMORY DEVICE
A processing device in a memory sub-system initiates a partial block handling protocol for a closed block of a memory device, the block comprising a plurality of wordlines. The processing device further sends a first programming command to the memory device to program one or more wordlines of the block with first padding data having a first data pattern, wherein the one or more wordlines are adjacent to a last wordline of the block programmed before the block was closed. In addition, the processing device sends a second programming command to the memory device to program all of a set of remaining wordlines of the block with second padding data having a second data pattern comprising fewer bits of data per cell than the first data pattern.
DISTRIBUTED COMPACTION OF LOGICAL STATES TO REDUCE PROGRAM TIME
A memory device includes a memory array of memory cells and control logic, operatively coupled with the memory array. The control logic is to perform operations, which include causing the memory cells to be programmed with an initial voltage distribution representing multiple logical states; causing the memory cells to be programmed with a subsequent voltage distribution representing a subset of the multiple logical states at a higher voltage than that of the initial voltage distribution, wherein the subset of the multiple logical states is compacted above a program verify voltage level for the subsequent voltage distribution; and causing a first program verify operation of the subsequent voltage distribution to be performed on the memory cells to verify one or more voltage levels of the subsequent voltage distribution.
QLC data programming
A data storage device includes one or more memory devices that each includes one or more superblocks and a controller coupled to the one or more memory devices. Each superblock includes a plurality of wordlines. The controller is configured to write data to a first wordline of the plurality of wordlines, write data to a second wordline of the plurality of wordlines, perform a read verify operation on the first wordline, and perform a read verify operation on the second wordline. At least one of the first wordline and the second wordline does not include an XOR parity element and one or more wordlines of the plurality of wordlines includes the XOR parity element.
APPARATUS AND METHODS FOR SMART VERIFY WITH NEIGHBOR PLANE DISTURB DETECTION
An apparatus is provided that includes a plurality of non-volatile memory cells and a control circuit coupled to the non-volatile memory cells. The control circuit is configured to perform a first program-verify iteration on a first set of non-volatile memory cells coupled to a first word line to determine a first starting program voltage that programs the first set of the non-volatile memory cells to a first programmed state, and program a second set of non-volatile memory cells coupled to the first word line beginning with the first starting program voltage only if a defect condition does not exist.
PROVIDING DATA OF A MEMORY SYSTEM BASED ON AN ADJUSTABLE ERROR RATE
A first data stored at a first portion of a memory cell and a second data stored at a second portion of the memory cell are identified. A first error rate associated with first data stored at the first portion of the memory cell is determined. The first error rate is adjusted to exceed a second error rate associated with the second data stored at the second portion of the memory cell. A determination is made as to whether the first error rate exceeds a threshold. The second data stored at the second portion of the memory cell is provided for use in an error correction operation by a controller associated with the memory cell in response to determining that the first error rate exceeds the threshold.
Programming techniques including an all string verify mode for single-level cells of a memory device
A storage device is disclosed herein. The storage device comprises a block including a plurality of memory cells and a circuit coupled to the plurality of memory cells of the block. The circuit is configured to program memory cells of a plurality of strings of a word line of the block and verify, for a plurality of sets of the memory cells, a data state of a set of the memory cells, where each set of the plurality of sets of the memory cells includes a memory cell from each string of the plurality of strings of the word line. Further, the circuit is configured to determine a number of sets of the plurality of memory cell sets that are verified to be in a first data state and determine, based on the number of sets, whether the block is faulty.
Non-volatile memory device and operating method thereof
An operating method of a non-volatile memory device including a plurality of memory cells respectively connected to a plurality of word lines is provided. The operating method includes applying an erase detect voltage to a selected word line of the plurality of word lines to perform an erase detect operation on memory cells connected to the selected word line in response to a program command, applying a program voltage to the selected word line after the erase detect operation, and counting a number of undererased cells of the memory cells on which the erase detect operation has been performed.
ALL STRING VERIFY MODE FOR SINGLE-LEVEL CELL
A storage device is disclosed herein. The storage device comprises a block including a plurality of memory cells and a circuit coupled to the plurality of memory cells of the block. The circuit is configured to program memory cells of a plurality of strings of a word line of the block and verify, for a plurality of sets of the memory cells, a data state of a set of the memory cells, where each set of the plurality of sets of the memory cells includes a memory cell from each string of the plurality of strings of the word line. Further, the circuit is configured to determine a number of sets of the plurality of memory cell sets that are verified to be in a first data state and determine, based on the number of sets, whether the block is faulty.
Memory device and programming method thereof
A programming method for a memory device includes simultaneously starting to program a first plane and a second plane; and bypassing the first plane and keeping programming the second plane when the first plane has been programmed successfully and the second plane has not been programmed successfully yet.
Memory device having memory cell and current detection circuit
According to one embodiment, a memory device includes a memory cell, a word line connected to the memory cell, a word line driver which generates a selection signal for the word line, a first transistor including a gate to which the selection signal generated by the word line driver is input, and a drain which supplies a signal based on the selection signal to the word line, and a detection circuit which detects a value based on a current flowing through the first transistor during a verification period after writing data to the memory cell.