Abstract: Sequential lateral solidification (SLS) crystallization of amorphous silicon uses a mask having light transmitting portions. A method of crystallizing an amorphous silicon film using the mask includes forming an amorphous silicon layer over a substrate; forming a metal layer on the amorphous silicon layer; patterning the metal layer to expose a portion of the amorphous silicon layer in a TFT area where a thin film transistor is formed; disposing the mask over the portion of the amorphous silicon layer exposed by the metal layer; and irradiating the portion of the amorphous silicon layer exposed by the metal layer using a laser beam that passes through the light transmitting portions of the mask such that the portion of the amorphous silicon layer is crystallized and laterally growing grains are formed in grain regions.

Abstract: A method of forming a crystalline silicon layer that includes forming a semiconductor layer of amorphous silicon on a substrate having a first region and a second region at a periphery of the first region; forming at least one concave-shaped alignment key by irradiating a laser beam onto the semiconductor layer in the second region; and crystallizing the semiconductor layer in the first region using the at least one alignment key.

Abstract: The present invention relates to a pumping circuit. The pumping circuit comprises a first pumping block for pumping an input voltage, a first latch for latching the output of the first pumping block, a second pumping block for pumping the output of the first pumping block according to a control signal, a second latch for latching the output of the second pumping block, and a switching circuit for selectively outputting the outputs of the first and second latches according to the control signal. Thus, a program voltage and a program verify voltage of different levels are pumped. The ripple and active current can be reduced and the program efficiency can be increased.

Abstract: A method of fabricating an array substrate for a liquid crystal display device includes forming an alignment key on a substrate having a display region and a non-display region surrounding the display region; forming an amorphous silicon layer on the alignment key; crystallizing a predetermined portion of the amorphous silicon layer using the alignment key as a reference; patterning the amorphous silicon layer using the alignment key as a reference to form a polycrystalline silicon layer, the polycrystalline silicon layer being formed from the predetermined portion of the amorphous silicon layer; forming a gate insulating layer on the semiconductor layer; forming a gate electrode on the gate insulating layer using the alignment key as a reference; forming an interlayer insulating layer on the gate electrode; and forming source and drain electrodes on the interlayer insulating layer.

Abstract: A method of fabricating polycrystalline silicon includes: forming a semiconductor layer of amorphous silicon on a substrate having a first region and a second region surrounding the first region; forming a plurality of flat align keys in the second region using a first mask; forming a plurality of convex align keys by etching the semiconductor layer in the first region, the plurality of convex align keys having steps against the substrate; and crystallizing the semiconductor layer in the first region by aligning a second mask with respect to the plurality of convex align keys.

Abstract: A method of crystallizing amorphous silicon is used for manufacturing an array substrate having thin film transistors, pixel electrodes and an alignment key. The method includes forming an amorphous silicon layer over a substrate, forming an alignment key in the amorphous silicon layer, preparing a mask including pattern portions and an alignment key pattern, disposing the mask over the substrate having the amorphous silicon layer, wherein the alignment key pattern is aligned with the alignment key, and applying a first shot of a laser beam to in the amorphous silicon layer to form first polycrystalline silicon areas corresponding to the pattern portions of the mask.

Abstract: Sequential lateral solidification (SLS) crystallization of amorphous silicon uses a mask having light transmitting portions. A method of crystallizing an amorphous silicon film using the mask includes forming an amorphous silicon layer over a substrate; forming a metal layer on the amorphous silicon layer; patterning the metal layer to expose a portion of the amorphous silicon layer in a TFT area where a thin film transistor is formed; disposing the mask over the portion of the amorphous silicon layer exposed by the metal layer; and irradiating the portion of the amorphous silicon layer exposed by the metal layer using a laser beam that passes through the light transmitting portions of the mask such that the portion of the amorphous silicon layer is crystallized and laterally growing grains are formed in grain regions.

Abstract: A method of crystallizing amorphous silicon includes forming an amorphous silicon film over a substrate, crystallizing the amorphous silicon film to form a polycrystalline silicon film using a sequential lateral solidification crystallization method, and performing a surface treatment to the polycrystalline silicon film, wherein the sequential lateral solidification crystallization method includes at least a first application of a first laser beam having a first energy density that completely melts a first uncrystallized portion of the amorphous silicon film and melts a first crystallized portion of the amorphous silicon film, and the surface treatment includes application of a second laser beam having a second energy density that partially melts an entire surface of the polycrystalline silicon film.

Abstract: The present invention relates to a novel Enterobacter sp. strain SSYL deposited under accession number KCTC 0687BP isolated from the root bark of Chinese elm, which produces immunostimulating exopolysaccharides with anticancer activity, a process for preparing the exopolysaccharides by fermenting the said microorganism in a culture medium, exopolysaccharides prepared by the process and their uses thereof. The exopolysaccharides of the invention have a molecular weight of 100,000 to 1,000,000 and consist of 40-75% of total sugar, 5-15% of total acidic sugar and 10-25% of total protein. The exopolysaccharides exhibits a high immunoenhancing activity in immune cell proliferation, direct mitogenicity and mixed lymphocyte reaction, and further a high anticancer activity in vivo by virtue of immunostimulation.

Abstract: The present invention relates to a pumping circuit. The pumping circuit comprises a first pumping block for pumping an input voltage, a first latch for latching the output of the first pumping block, a second pumping block for pumping the output of the first pumping block according to a control signal, a second latch for latching the output of the second pumping block, and a switching circuit for selectively outputting the outputs of the first and second latches according to the control signal. Thus, a program voltage and a program verify voltage of different levels are pumped. The ripple and active current can be reduced and the program efficiency can be increased.

Abstract: The present invention relates to a multicoil probe for simultaneous detection of size and depth of embedded reinforcement in concrete and method of detection using the same and more particularly, to a multicoil probe having sensing coils which are mounted in the inside and outside of an exciting coil and a method of detecting size and depth of embedded reinforcement in concrete using the same.

Abstract: The present invention relates to a multicoil probe for simultaneous detection of size and depth of embedded reinforcement in concrete and method of detection using the same and more particularly, to a multicoil probe having sensing coils which are mounted in the inside and outside of an exciting coil and a method for detecting size and depth of embedded reinforcement in concrete using the same.

Abstract: A first light source of an optical pickup emits a first laser beam having a first predetermined wavelength. A second light source emits a second laser beam that substantially perpendicularly crosses the first laser beam and has a second predetermined wavelength different from the first predetermined wavelength. A holographic beam splitter is slopingly disposed where the laser beams cross. The holographic beam splitter has a hologram diffractive surface on one surface and a coating layer on another surface for being penetrated by and reflecting the laser beams at a first predetermined ratio. A flat beam splitter is arranged on a first path of the laser beams from the holographic beam splitter to be penetrated by and reflect the laser beams at a second predetermined ratio. A collimator lens is arranged on a second path of the laser beams from the flat beam splitter to shape the laser beams. An objective lens focuses the shaped laser beams at least upon an optical disc.

Abstract: A computer case is disclosed that allows a user to open and close the case without the use of special tools or screws. Instead, a user simply slides two sliders on the cover of the case towards each other and simply lifts up the front portion of the cover to gain access to the interior of the case. The slider is monolithically integrated to a latch. The latch contains two spaced-apart arms about a recess. One of the arms of the latch is arcuate so as to guide a portion of the base and a portion of a cover that are slightly separated into the recess so that both portions are mated snugly preventing inadvertent opening of the case. This snug mating can be accomplished by simply sliding a pair of slider in the proper directions. To disengage the cover from the base, the sliders are slid in the opposite directions releasing a portions of the base from contact with a portions of the cover. When the case is released, the front of the cover can be lifted up.