Abstract: A semiconductor memory device includes a first stacked structure, a first supporter layer, a second stacked structure, a block cut structure, and a second supporter layer on the second stacked structure and separated by a second cut pattern. The first stacked structure includes a first and second stack, the second stacked structure includes a third stack separated by the block cut structure and a fourth stack, the first supporter layer is on the first stack and the second stack, the second supporter layer is on the third stack and the fourth stack, the first cut pattern includes a first connection on the block cut structure and connecting the first supporter layer and the second stack, and the second cut pattern of the second supporter layer includes a second connection on the block cut structure and connecting the second supporter layer placed on the third stack and the fourth stack.

Abstract: Disclosed is a method for pre-detecting a defective porous polymer substrate for a separator, including selecting a porous polymer substrate having a plurality of pores; observing the selected porous polymer substrate with a scanning electron microscope (SEM) to obtain an image of the porous polymer substrate; quantifying the average value of pore distribution index (PDI); correcting the quantified average value of pore distribution index to obtain the corrected average value of pore distribution index; determining whether or not the corrected average value of pore distribution index is 60 a.u. (arbitrary unit) or less; and classifying the porous polymer substrate as a good product, when the corrected average value of pore distribution index is determined to be 60 a.u. or less, and classifying the porous polymer substrate as a defective product, when the corrected average value of pore distribution index is determined to be larger than 60 a.u.

Abstract: A display apparatus including a display and a supporter. The supporter being mounted on the display and configured to support the display and rotate the display module between a first position and a second position. The supporter including a drive motor, a first gear, and a detection sensor. The drive motor configured to supply a driving force to rotate the display. The first gear configured to rotate together with the display by receiving the driving force from the drive motor. The detection sensor configured to detect a rotation amount of a second gear configured to rotate in with the first gear.

Abstract: Provided is a plasma torch in which a cathode conduit is disposed to be spaced apart from an outer circumferential surface of a cooling conduit, an insulator and an anode conduit are sequentially disposed around the cathode conduit in a closely abutting relation, an electrode element is engagingly coupled to a left end of the cathode conduit, and a nozzle is engagingly coupled to a left end of the anode conduit, and in which the cooling conduit includes one or more small peripheral radial air outlets formed on an outer circumferential surface of a left side end thereof so as to be opened at one sides of the air outlets, and a large central air outlet formed at the center of the left end thereof so that the left end of the cooling conduit is brought into close contact with an inner bottom of the electrode element.