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Program disturbance characteristics of 3D vertical NAND Flash cell array architecture have been investigated intensively. A new 'program Y disturbance' mode peculiar to 3D NAND Flash cell is defined. Swing characteristics of poly-Si channel and increased NOP (number of program) stress have been compared with 2D planar NAND Flash cell. In this paper, new program method pertinent to 3D NAND Flash memory...
The two aims of this study are first, determining the optimal welding process parameters by using the finite element simulation and second, determining the optimal tempering temperature by evaluating the mechanical properties of friction welded part for manufacturing large rotor shaft. Inertia welding was conducted in order to make the large rotor shaft of turbo charger for low speed marine diesel...
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