Abstract:
A memory control module includes a read module configured to receive a first signal read from a first storage region of a memory cell, and receive a second signal read from a second storage region of the memory cell. A data detection module is configured to, based on a noiseless signal, detect respective data in each of the first storage region and the second storage region. The noiseless signal includes an ideal signal and an interference signal associated with at least one of the first signal and the second signal.
Abstract:
The present disclosure includes devices, methods, and systems including memory cell sensing using a boost voltage. One or more embodiments include pre-charging and/or floating a data line associated with a selected memory cell, boosting the pre-charged and/or floating data line, and determining a state of the selected memory cell based on a sensed discharge of the data line after boosting the data line.
Abstract:
A nonvolatile memory device has improved reliability by compensating a threshold voltage of a flash memory cell. A nonvolatile memory device includes a memory cell array and a voltage generator for supplying a select read voltage to a select word line and an unselect read voltage to unselected word lines when a read operation is performed, and supplying a verify voltage to a select word line and the unselect read voltage to unselected word lines when a program operation is performed. The voltage generator supplies a first unselect read voltage to at least one between an upper word line and a lower word line adjacent to the select word line when the program operation is performed, and supplies a second unselected read voltage to at least one between the upper word line and the lower word line adjacent to the select word line when the read operation is performed.
Abstract:
A bit line is electrically connected to one end of a current path of a memory cell. A word line is commonly connected to the memory cells arranged in a direction intersecting the bit line. A control circuit executes a write operation for applying a write voltage to the word line so shift a threshold voltage of the memory cell to be data written that the threshold voltage of the memory cell to be data written reaches a certain threshold voltage. During the write operation, the control circuit, while applying a gradually rising write voltage to the word line, gradually changes a voltage applied to the bit line based on a relationship between the threshold voltage of the memory cell to be written and a number of times of the write voltage applications.
Abstract:
The present disclosure includes methods, devices, modules, and systems for operating semiconductor memory. One method embodiment includes determining a status of a page of memory cells without using input/output (I/O) circuitry, and outputting the status through the I/O circuitry.
Abstract:
Apparatus and methods for determining pass/fail condition of memories are disclosed. In at least one embodiment, a set of common lines, one for each rank of page buffers corresponding to a page, determine the pass/fail status of all connected memory cells, and the pass/fail status results for each line can be combined to determine a pass/fail for the page of memory.
Abstract:
A storage control apparatus includes: a pre-processing-execution determining block for determining whether or not either one of an erase operation and a program operation is to be executed as pre-processing in a write operation to be carried out on a predetermined data area to serve as a write-operation object; and a pre-read processing block for reading out pre-read data from the data area prior to the write operation if a result of the determination indicates that the pre-processing is to be executed. The apparatus further includes a bit operating block for carrying out: the pre-processing and one of the erase and program operations which is not the pre-processing as post-processing if a result of the determination indicates that the pre-processing is to be executed; and the post-processing without carrying out the pre-processing if a determination result indicates that the pre-processing is not to be executed.
Abstract:
Methods and devices for sensing non-volatile storage are disclosed. Technology disclosed herein reduces the time for sensing operations of non-volatile storage such as read and program verify. In one embodiment, a kicking voltage is applied to a selected word line during a sensing operation. The kicking voltage may be applied to one end of a selected word line during a transition from a first reference voltage to a second reference voltage. The kicking voltage may help the other end of the word line reach the second reference voltage quickly. Since the bit lines can be sensed after the selected word line has reached the target reference voltage, the time delay prior to sensing of the bit lines may be reduced.
Abstract:
A semiconductor memory device is operated by, inter alia, sequentially inputting program data to page buffers coupled to selected pages of at least four planes in order to program selected memory cells included in the selected pages; performing a program operation on each of the four planes; performing a program verify operation on each of the four planes; and inputting new program data for next pages to the page buffers coupled to the next pages, after determining the selected pages of at least two of the four planes have passed the program verify operation, while performing the program operations and the program verify operations on the two remaining planes.
Abstract:
A method of operating a nonvolatile memory device includes determining whether a program operation is performed on even memory cells coupled to even bit lines of a selected page, setting a coupling resistance value between odd bit lines of the selected page and page buffers depending on whether the program operation for the even memory cells is performed, performing a program operation on the odd memory cells coupled to the odd bit lines, and coupling the odd bit line to the page buffer based on the set coupling resistance value and performing an verification operation for verifying whether threshold voltages of the odd memory cells on which the program operation is performed are a target voltage or more.