摘要:
An enhanced semiconductor memory device capable of eliminating or minimizing a cell data flip phenomenon caused by capacitive voltage coupling between bit lines in different bit line pairs. Each memory cell is connected to a word line and between a pair of bit line. A first precharging and equalizing circuit us connected to a first bit line pair and a second precharging and equalizing circuit us connected to an adjacent second bit line pair. The first and second precharging and equalizing circuit are activated independently and at different times in order to reduce voltage coupling between neighboring bit lines in different bit line pairs, thereby minimizing or eliminating a cell data flip phenomenon of a neighboring memory cell caused by voltage coupling between bit lines.
摘要:
A semiconductor memory device, which has an array of memory cells connected with a plurality of bit line pairs and a plurality of word lines, to perform a read or write operation of data, having low power consumption is provided. The device includes a first power supply for supplying a first power source voltage. Also, a second power supply supplies a second power source voltage having a lower voltage level than the first power source voltage. Further, the device includes a standard ground. An elevated ground circuit provides an elevated ground voltage having a higher voltage level than that of the standard ground. A first power circuit is connected with the first power supply and the standard ground, and operates in response to the first power source voltage. A second power circuit is connected with the second power supply and the elevated ground circuit, and operates in response to the second power source voltage. Thereby, power and chip size can be reduced.
摘要:
A semiconductor device and method for arranging and manufacturing the same are disclosed. The semiconductor device includes a plurality of inverters including at least one first pull-up transistor and first pull-down transistor and inverting and outputting an input signal, respectively; and a plurality of NAND gates including at least two second pull-up transistor and second pull-down transistor and generating an output signal having a high level if at least one of at least two input signals has a low level, respectively, wherein the at least one first pull-up transistor and first pull-down transistor and the at least two second pull-up transistor and second pull-down transistor are stacked and arranged on at least two layers.
摘要:
A semiconductor device and method for arranging and manufacturing the same are disclosed. The semiconductor device includes a plurality of inverters including at least one first pull-up transistor and first pull-down transistor and inverting and outputting an input signal, respectively; and a plurality of NAND gates including at least two second pull-up transistor and second pull-down transistor and generating an output signal having a high level if at least one of at least two input signals has a low level, respectively, wherein the at least one first pull-up transistor and first pull-down transistor and the at least two second pull-up transistor and second pull-down transistor are stacked and arranged on at least two layers.
摘要:
A semiconductor memory device comprises a cell region including a plurality of unit memory cells, and a peripheral circuit region, the peripheral circuit region including a plurality of peripheral circuit devices for operating the plurality of memory cells and at least one operating capacitor formed adjacent to at least one peripheral circuit device at a pseudo circuit pattern region.
摘要:
A semiconductor device and method for arranging and manufacturing the same are disclosed. The semiconductor device includes a plurality of inverters including at least one first pull-up transistor and first pull-down transistor and inverting and outputting an input signal, respectively; and a plurality of NAND gates including at least two second pull-up transistor and second pull-down transistor and generating an output signal having a high level if at least one of at least two input signals has a low level, respectively, wherein the at least one first pull-up transistor and first pull-down transistor and the at least two second pull-up transistor and second pull-down transistor are stacked and arranged on at least two layers.
摘要:
A semiconductor memory device includes a memory cell array having memory cells arranged in rows and columns, a row decoder selecting one of the rows and activating the selected row, a bit-line sense amplifier detecting and amplifying data of the memory cells coupled to the selected row through the columns, a data-bus sense amplifier detecting and amplifying data output from the bit-line sense amplifier, and a control logic block enabling the bit-line and data-bus sense amplifiers in a reading operation, operating the data-bus sense amplifier in a semi-latch type mode for a predetermined period, and operating the data-bus sense amplifier in a full-latch type mode after the predetermined period.
摘要:
A semiconductor memory device is provided to generate a series of pulse signals in response to the activation of an internal chip select signal from an internal chip select buffer when an external chip select signal transitions from an inactive state to an active state. With this configuration, a chip select output time (tco) is more reduced as compared to prior arts. Further, the chip select output time is reduced to be equal to an address access time (tAA) because a designer can control the chip select output time. As a result, the whole access time of the semiconductor memory device can be reduced.
摘要:
A semiconductor memory device includes a memory cell array having memory cells arranged in rows and columns, a row decoder selecting one of the rows and activating the selected row, a bit-line sense amplifier detecting and amplifying data of the memory cells coupled to the selected row through the columns, a data-bus sense amplifier detecting and amplifying data output from the bit-line sense amplifier, and a control logic block enabling the bit-line and data-bus sense amplifiers in a reading operation, operating the data-bus sense amplifier in a semi-latch type mode for a predetermined period, and operating the data-bus sense amplifier in a full-latch type mode after the predetermined period.
摘要:
A semiconductor device and method for arranging and manufacturing the same are disclosed. The semiconductor device includes a plurality of inverters including at least one first pull-up transistor and first pull-down transistor and inverting and outputting an input signal, respectively; and a plurality of NAND gates including at least two second pull-up transistor and second pull-down transistor and generating an output signal having a high level if at least one of at least two input signals has a low level, respectively, wherein the at least one first pull-up transistor and first pull-down transistor and the at least two second pull-up transistor and second pull-down transistor are stacked and arranged on at least two layers.