Abstract:
Provided are methods of forming a stack of electrodes and three-dimensional semiconductor devices fabricated thereby. The device may include electrodes sequentially stacked on a substrate to constitute an electrode structure. each of the electrodes may include a connection portion protruding horizontally and outward from a sidewall of one of the electrodes located thereon and an aligned portion having a sidewall coplanar with that of one of the electrodes located thereon or thereunder. Here, at least two of the electrodes provided vertically adjacent to each other may be provided in such a way that the aligned portions thereof have sidewalls that are substantially aligned to be coplanar with each other.
Abstract:
An intermediate end plug assembly for a segmented fuel rod can stably support the fuel rod to the end of its cycle even if an interval between the fuel rods becomes narrow due to application of a dual-cooled fuel rod, and reduce excess vibration induced by flows of interior and exterior channels of the dual-cooled fuel rod for obtaining high burnup and output. To this end, the fuel rod has a segmented structure so as to make its length short. A lower intermediate end plug includes at least one channel hole, through which a coolant flows into an internal channel of the fuel rod, so that a possibility of causing departure from nuclear boiling ratio (DNBR) of the dual-cooled fuel rod is reduced.
Abstract:
Provided is a liquid crystal display device which is capable of preventing light leakage and preventing a dark portion from being viewed. The liquid crystal display device includes: a lower receiving container; a plurality of supporting walls arranged in a line along at least one side wall of the lower receiving container with gaps therebetween; a plurality of light sources arranged in a line so as to be provided in the gaps; and a reflecting cover covering at least a portion of each of the gaps.
Abstract:
A method of fabricating an integrated circuit device includes forming first and second mask structures on respective first and second regions of a feature layer. Each of the first and second mask structures includes a dual mask pattern and an etch mask pattern thereon having an etch selectivity relative to the dual mask pattern. The etch mask patterns of the first and second mask structures are isotropically etched to remove the etch mask pattern from the first mask structure while maintaining at least a portion of the etch mask pattern on the second mask structure. Spacers are formed on opposing sidewalls of the first and second mask structures. The first mask structure is selectively removed from between the spacers in the first region using the portion of the etch mask pattern on the second mask structure as a mask to define a first mask pattern including the opposing sidewall spacers with a void therebetween in the first region, and a second mask pattern including the opposing sidewall spacers with the second mask structure therebetween in the second region. The feature layer may be patterned using the first mask pattern as a mask to define a first feature on the first region, and using the second mask pattern as a mask to define a second feature on the second region having a greater width than the first feature.
Abstract:
A semiconductor memory device includes a plurality of word lines vertically formed on a surface of a semiconductor substrate, where each pair of the plurality of word lines form a set of word lines, a bit line formed parallel to the surface of the semiconductor substrate and disposed in plurality stacked between the word lines of each pair constituting the one set of word lines, and unit memory cells disposed between respective ones of the bit lines and an adjacent one of the pair of word lines of said one of the word line sets.
Abstract:
A method of forming a semiconductor device may include forming a contact mold layer on a substrate; forming an interconnection mold layer on the contact mold layer that includes a material having an etching selectivity with respect to the contact mold layer; forming grooves in the interconnection mold layer that extend in a first direction and expose the contact mold layer; forming holes in the contact mold layer connected to the grooves by etching a part of the contact mold layer exposed by the groove; and forming contact portions in the holes and interconnections in the groove. A diffusion coefficient of mobile atoms in the contact mold layer is greater than a diffusion coefficient of mobile atoms in a nitride.
Abstract:
A method of fabricating a semiconductor device facilitates the forming of a conductive pattern of features having different widths. A conductive layer is formed on a substrate, and a mask layer is formed on the conductive layer. First spaced apart patterns are formed on the mask layer and a second pattern including first and second parallel portion is formed beside the first patterns on the mask layer. First auxiliary masks are formed over ends of the first patterns, respectively, and a second auxiliary mask is formed over the second pattern as spanning the first and second portions of the second pattern. The mask layer is then etched to form first mask patterns below the first patterns and a second mask pattern below the second pattern. The first and second patterns and the first and second auxiliary masks are removed. The conductive layer is then etched using the first and second mask patterns as an etch mask.
Abstract:
The present invention relates to a billiard ball, comprising: a main body, the outer surface of which has at least one design groove; a designed member which is arranged in the design groove and which has a design; and a transparent resin which fills the design groove, thereby continuously showing an advertisement design, which has been formed on the billiard ball, during a game of billiards, thus achieving maximized advertising effects.
Abstract:
Provided are a glyceride oil composition derived from a fish oil and a preparation method thereof. The composition includes docosahexaenoic acid (DHA) and docosapentaenoic acid (DPA) with a content of 45 to 95% by weight and eicosapentaenoic acid (EPA) with a content of 0.001 to 13% by weight among constituent fatty acids, and a saturated fatty acid having 16 to 18 carbon atoms, which is bonded at 1- and 3-positions, with a content of 0.001 to 5% by weight among constituent fatty acids, in which a weight ratio of docosahexaenoic acid (DHA)/docosapentaenoic acid (DPA) is 0.5 to 8 and a weight ratio of docosahexaenoic acid (DHA)/eicosapentaenoic acid (EPA) is 3.5 to 15. The glyceride oil composition derived from fish oil has nutritional and physiological superiority due to containing a great amount of polyunsaturated fatty acids such as DHA and DPA in a form of glyceride, and can minimize disadvantages of EPA such as inhibition of ω-6 fatty acid metabolism by containing a low amount of EPA. The glyceride oil composition is excellent in digestion and absorption of polyunsaturated fatty acids into a human body by containing a low amount of saturated fatty acids at 1- and 3-positions and process characteristics such as an oxidation stability and water-dispersibility.
Abstract:
The present invention provides a composition for surface modification of a heat sink, the composition including: 0.01 to 10 parts by weight of an organic titanium compound; 0.01 to 5 parts by weight of an organic silane compound; 0.1 to 10 parts by weight of an organic acid; 0.01 to 5 parts by weight of a sequestering agent; and 0.1 to 10 parts by weight of a buffer with respect to 100 parts by weight of distilled water. The composition of the present invention provides excellent adhesion strength with prepreg, and improve heat releasing performance.