摘要:
Provided are a memory cell programming method and a semiconductor device which may be capable of simultaneously writing a bit of data and then another bit of the data to a plurality of memory blocks. The memory programming method, in which M bits of data are written to a plurality of memory blocks, may include a data division operation and a data writing operation where M may be a natural number. In the data division operation, the plurality of memory blocks may be divided into a plurality of memory block groups. In the data writing operation, an ith bit of the data may be simultaneously written to two or more memory block groups from among the plurality memory block groups, and then an i+1th bit of the data may be simultaneously written to the two or more memory block groups from among the plurality memory block groups, where i is a natural number less than M.
摘要:
Provided are a memory cell programming method and a semiconductor device which may be capable of simultaneously writing a bit of data and then another bit of the data to a plurality of memory blocks. The memory programming method, in which M bits of data are written to a plurality of memory blocks, may include a data division operation and a data writing operation where M may be a natural number. In the data division operation, the plurality of memory blocks may be divided into a plurality of memory block groups. In the data writing operation, an ith bit of the data may be simultaneously written to two or more memory block groups from among the plurality memory block groups, and then an i+1th bit of the data may be simultaneously written to the two or more memory block groups from among the plurality memory block groups, where i is a natural number less than M.
摘要:
Provided are a method of writing/reading data into/from a memory cell and a page buffer using different codes for the writing and reading operations. The method of writing/reading data into/from a memory cell that has a plurality of threshold voltage distributions includes a data writing operation and a data reading operation. In the data writing operation, data having a plurality of bits is written into the memory cell by using a plurality of writing codes corresponding to threshold voltage distributions. In the data reading operation, the data having a plurality of bits is read from the memory cell by using reading codes corresponding to the threshold voltage distributions from among the threshold voltage distributions. In the method of writing/reading data into/from a memory cell, a part of the writing codes is different from a corresponding part of the reading codes.
摘要:
Provided are a method of writing/reading data into/from a memory cell and a page buffer using different codes for the writing and reading operations. The method of writing/reading data into/from a memory cell that has a plurality of threshold voltage distributions includes a data writing operation and a data reading operation. In the data writing operation, data having a plurality of bits is written into the memory cell by using a plurality of writing codes corresponding to threshold voltage distributions. In the data reading operation, the data having a plurality of bits is read from the memory cell by using reading codes corresponding to the threshold voltage distributions from among the threshold voltage distributions. In the method of writing/reading data into/from a memory cell, a part of the writing codes is different from a corresponding part of the reading codes.
摘要:
A method of programming a non-volatile memory cell includes programming a first bit of multi-bit data by setting a threshold voltage of the non-volatile memory cell to a first voltage level within a first of a plurality of threshold voltage distributions. A second bit of the multi-bit data is programmed by setting the threshold voltage to a second voltage level based on a value of the second bit. The second voltage level is the same as the first voltage level if the second bit is a first value and the second voltage level is within a second of the plurality of threshold voltage distributions if the second bit is a second value. A third bit of the multi-bit data is programmed by setting the threshold voltage to a third voltage level based on a value of the third bit.
摘要:
A method of programming a non-volatile memory cell includes programming a first bit of multi-bit data by setting a threshold voltage of the non-volatile memory cell to a first voltage level within a first of a plurality of threshold voltage distributions. A second bit of the multi-bit data is programmed by setting the threshold voltage to a second voltage level based on a value of the second bit. The second voltage level is the same as the first voltage level if the second bit is a first value and the second voltage level is within a second of the plurality of threshold voltage distributions if the second bit is a second value. A third bit of the multi-bit data is programmed by setting the threshold voltage to a third voltage level based on a value of the third bit.
摘要:
A highly integrated non-volatile memory device and a method of operating the non-volatile memory device are provided. The non-volatile memory device includes a semiconductor layer. A plurality of upper control gate electrodes are arranged above the semiconductor layer. A plurality of lower control gate electrodes are arranged below the semiconductor layer, and the plurality of upper control gate electrodes and the plurality of lower control gate electrodes are disposed alternately. A plurality of upper charge storage layers are interposed between the semiconductor layer and the upper control gate electrodes. A plurality of lower charge storage layers are interposed between the semiconductor layer and the lower control gate electrodes.
摘要:
Example embodiments relate to a semiconductor device including a fin-type channel region and a method of fabricating the same. The semiconductor device includes a semiconductor substrate, a semiconductor pillar and a contact plug. The semiconductor substrate includes at least one pair of fins used (or functioning) as an active region. The semiconductor pillar may be interposed between portions of the fins to connect the fins. The contact plug may be disposed (or formed) on the semiconductor pillar and electrically connected to top surfaces of the fins.
摘要:
Example embodiments relate to a semiconductor device including a fin-type channel region and a method of fabricating the same. The semiconductor device includes a semiconductor substrate, a semiconductor pillar and a contact plug. The semiconductor substrate includes at least one pair of fins used (or functioning) as an active region. The semiconductor pillar may be interposed between portions of the fins to connect the fins. The contact plug may be disposed (or formed) on the semiconductor pillar and electrically connected to top surfaces of the fins.
摘要:
The flash memory device includes a control logic circuit and a bit level conversion logic circuit. The control logic circuit programs first through Nth bits of data in a memory cell array of the N-bit MLC flash memory device or reads the first through Nth bits of the data from the memory cell array in response to one of a program command and a read command. The bit level conversion control logic circuit, after the first through Nth bits of the data are completely programmed or read, programs or reads an (N+1)th bit of the data in response to a control signal. The bit level conversion control logic circuit converts voltage levels of voltages, which are used for programming or reading the first through Nth bits of the data, to program or read for 2N cell distributions of 2N+1 cell distributions corresponding to the (N+1)th bit of the data and then programs or reads for other 2N cell distributions.