Abstract: Systems and methods for reducing trapped electrons within a NAND string are described. During a sensing operation, one or more control circuits may discharge or initiate discharge of control gates corresponding with contiguous memory cell transistors of a NAND string from a read pass voltage (e.g., 10V) to a second voltage less than the pass voltage (e.g., 2V) in an order starting from a first set of the contiguous memory cell transistors closest to the first end of the NAND string and ending with a second set of the contiguous memory cell transistors closest to the second end of the NAND string. Subsequently, the one or more control circuits may either concurrently or simultaneously discharge the control gates corresponding with the contiguous memory cell transistors from the second voltage to a third voltage less than the intermediate voltage (e.g., from 2V to 0V).

Abstract: A semiconductor device having a memory cell area and a peripheral circuit area includes a silicon substrate and an isolation structure implemented by a silicon oxide film formed on a surface of the silicon substrate. A depth of the isolation structure in the memory cell area is smaller than a depth of the isolation structure in the peripheral circuit area, and an isolation height of the isolation structure in the memory cell area is substantially the same as an isolation height of the isolation structure in the peripheral circuit area. Reliability of the semiconductor device can thus be improved.

Abstract: A semiconductor device having a memory cell area and a peripheral circuit area includes a silicon substrate and an isolation structure implemented by a silicon oxide film formed on a surface of the silicon substrate. A depth of the isolation structure in the memory cell area is smaller than a depth of the isolation structure in the peripheral circuit area, and an isolation height of the isolation structure in the memory cell area is substantially the same as an isolation height of the isolation structure in the peripheral circuit area. Reliability of the semiconductor device can thus be improved.

Abstract: A semiconductor device having a memory cell area and a peripheral circuit area includes a silicon substrate and an isolation structure implemented by a silicon oxide film formed on a surface of the silicon substrate. A depth of the isolation structure in the memory cell area is smaller than a depth of the isolation structure in the peripheral circuit area, and an isolation height of the isolation structure in the memory cell area is substantially the same as an isolation height of the isolation structure in the peripheral circuit area. Reliability of the semiconductor device can thus be improved.

Abstract: A semiconductor device having a memory cell area and a peripheral circuit area includes a silicon substrate and an isolation structure implemented by a silicon oxide film formed on a surface of the silicon substrate. A depth of the isolation structure in the memory cell area is smaller than a depth of the isolation structure in the peripheral circuit area, and an isolation height of the isolation structure in the memory cell area is substantially the same as an isolation height of the isolation structure in the peripheral circuit area. Reliability of the semiconductor device can thus be improved.

Abstract: A semiconductor device having a memory cell area and a peripheral circuit area includes a silicon substrate and an isolation structure implemented by a silicon oxide film formed on a surface of the silicon substrate. A depth of the isolation structure in the memory cell area is smaller than a depth of the isolation structure in the peripheral circuit area, and an isolation height of the isolation structure in the memory cell area is substantially the same as an isolation height of the isolation structure in the peripheral circuit area. Reliability of the semiconductor device can thus be improved.

Abstract: A rewriting endurance of a flash memory is made to improve.