摘要:
A non-volatile memory device includes a memory cell array from which data is read via a plurality of bitlines, which includes a plurality of memory cells having gates respectively connected with a plurality of wordlines, a first type global wordline decoder configured to selectively apply n different voltages, where n is an integer greater than or equal to 3, to a corresponding wordline of the plurality of wordlines in a program mode, and a second type global wordline decoder configured to selectively apply (n−1) different voltages to a corresponding wordline of the plurality of wordlines in the program mode, the second type global wordline decoder having fewer switching elements than the first type global wordline decoder.
摘要:
A flash memory device includes a first switch connecting one of a first cell string and a second cell string to a first bit line selectively, a second switch connecting the second cell string to a second bit line, and a control logic circuit providing bias voltages to the first and second cell strings through the first and second bit lines respectively and controlling the first and second cell stings to be simultaneously programmed.
摘要:
A nonvolatile memory device comprises a memory cell array comprising a plurality of memory blocks each divided into a plurality of regions, and a control logic component. The control logic component selects a memory block to be programmed based on program/erase cycles of the memory blocks, and selects a program rule used to program the regions of the selected memory block.
摘要:
A method and device for adaptive control of multilayered nonvolatile semiconductor memory are provided, the device including memory cells organized into groups and a control circuit having a look-up matrix for providing control parameters for each of the groups, where characteristics of each group are stored in the look-up matrix, and the control parameters for each group are responsive to the stored characteristics for that group; the method including organizing memory cells into groups, storing characteristics for each group in a look-up matrix, providing control parameters for each of the groups, where the control parameters for each group are responsive to its stored characteristics, and driving each memory cell in accordance with its provided control parameters.
摘要:
A semiconductor memory device includes a memory cell array having first and second blocks, respectively including first and second memory cells with floating bodies. The first memory cell is connected between a first bit line and a source line, and the second memory cell is connected between a second bit line and the source line. A sense amplifier equalizes the sense bit line and the inverted sense bit line to be an equalization voltage during an equalization operation, pre-charges the sense bit line and the inverted sense bit line to first and second pre-charge voltages during a pre-charge operation, and amplifies a voltage difference between the sense bit line and the inverted sense bit line during read and write operations. The first pre-charge voltage is higher than the equalization voltage and the second pre-charge voltage is higher than the equalization voltage and lower than the first pre-charge voltage.
摘要:
Flash memory devices include a first memory cell string including a plurality of serially-connected memory cells and first and second serially-connected dummy transistors configured to couple the serially-connected memory cells to a bit line and a second memory cell string including a plurality of serially-connected memory cells and first and second serially-connected dummy transistors configured to couple the serially-connected memory cells to the bit line. The first dummy memory cells of the first and second memory cell strings have gates connected in common to a first dummy word line and have different threshold voltages and the second dummy memory cells of the first and second memory cell strings have gates connected in common to a second dummy bit line and have different threshold voltages. In some embodiments, the first dummy memory cell of the first memory cell string and the second dummy memory cell of the second memory cell string may have threshold voltages greater than a predetermined voltage and the second dummy memory cell of the first memory cell string and the first dummy memory cell of the second memory cell string may have threshold voltages less than the predetermined voltage.
摘要:
A nonvolatile memory device comprises a memory cell array comprising a plurality of memory blocks each divided into a plurality of regions, and a control logic component. The control logic component selects a memory block to be programmed based on program/erase cycles of the memory blocks, and selects a program rule used to program the regions of the selected memory block.
摘要:
Disclosed is a nonvolatile memory including a memory cell array including a first cell string connected between a first bit line and a first common source line, and a second cell string a second common source line and a second bit line adjacent to the first bit line. The nonvolatile memory also includes a control logic circuit configured to independently control the first and second common source lines.
摘要:
A non-volatile memory device includes a memory cell array from which data is read via a plurality of bitlines, which includes a plurality of memory cells having gates respectively connected with a plurality of wordlines, a first type global wordline decoder configured to selectively apply n different voltages, where n is an integer greater than or equal to 3, to a corresponding wordline of the plurality of wordlines in a program mode, and a second type global wordline decoder configured to selectively apply (n−1) different voltages to a corresponding wordline of the plurality of wordlines in the program mode, the second type global wordline decoder having fewer switching elements than the first type global wordline decoder.
摘要:
Disclosed is a nonvolatile memory including a memory cell array including a first cell string connected between a first bit line and a first common source line, and a second cell string a second common source line and a second bit line adjacent to the first bit line. The nonvolatile memory also includes a control logic circuit configured to independently control the first and second common source lines.