Abstract: A method for fabricating a nonvolatile memory device includes forming a tunneling insulation layer and a conductive layer for a floating gate over a substrate, partially etching the conductive layer, the tunneling insulation layer, and the substrate to form a trench, forming an isolation layer filling a portion of the trench, forming spacers on both sidewalls of the conductive layer not covered by the isolation layer, recessing a portion of the exposed isolation layer using the spacers as an etch barrier layer to form wing spacers, removing the spacers, performing a primary cleaning process on the resulting substrate using a mixed solution of H2SO4 and H2O2 and a mixed solution of NH4OH, H2O2, and H2O, and performing a secondary cleaning process on the resulting structure using a mixed solution of a HF solution and a deionized water and a mixed solution of NH4OH, H2O2, and H2O.

Abstract: An antenna structure of an information communication terminal, the antenna structure including: a frame having a three dimensional shape; an antenna pattern formed in the frame; and a circuit lumped element mounted on a surface of the antenna pattern. In the antenna structure, an antenna is directly provided on the frame such that a sufficient antenna characteristic can be ensured in a small space, thereby realizing a slim and miniaturized information communication terminal.

Abstract: A method for fabricating a nonvolatile memory device includes forming a tunneling insulation layer and a conductive layer for a floating gate over a substrate, partially etching the conductive layer, the tunneling insulation layer, and the substrate to form a trench, forming an isolation layer filling a portion of the trench, forming spacers on both sidewalls of the conductive layer not covered by the isolation layer, recessing a portion of the exposed isolation layer using the spacers as an etch barrier layer to form wing spacers, removing the spacers, performing a primary cleaning process on the resulting substrate using a mixed solution of H2SO4 and H2O2 and a mixed solution of NH4OH, H2O2, and H2O, and performing a secondary cleaning process on the resulting structure using a mixed solution of a HF solution and a deionized water and a mixed solution of NH4OH, H2O2, and H2O.

Abstract: A portable electronic device includes a case; a revolution body rotatable with respect to the case; an electric generator converting rotational kinetic energy of the revolution body into electrical energy; a gear assembly transferring rotational force of the revolution body to the electric generator, and including at least one gear; and a secondary cell storing the electrical energy generated by the electric generator.

Abstract: 2,4-pyrimidinedione derivatives of formula (I) having high antiviral activity against wild-type and mutant HIV-1 and low toxicity are useful for treating AIDS (I) wherein: R1 is a C6-10 aryl or C3-10 heteroaryl group optionally having one or more substituents selected from the group consisting of halogen, C1-6 alkyl, C1-6 alkyl substituted with one or more halogen atoms, C3-4 cycloalkyl, cyano, nitro, hydroxy, thiohydroxy, azido, C1-6 alkoxy, oximino, C1-3 alkyloximino, O—(C1-6 alkyl)-substituted oximino, C—1-6 alkylcarbonyl, C3-6 cycloalkylcarbonyl, hydroxymethyl, azidomethlyl, C1-6 alkoxymethyl, C1-6 acyloxynethyl, carbamoyloxymethyl, anminomethyl, N—(C1-3 alkyl)aminomethyl, N,N-di(C1-3 alkyl)aminomethyl, carboxy, C1-6 alkoxycarbonyl, aziridine, amino, hydroxyethylamino, cyclopropylamino, C1-6 alkylamino, di(C1-6 alkyl)amino, trifluoroacetamido, C1-6 acylamido, carbamoyl, hydroxyethylcarbamoyl, cyclopropylcarbamoyl, C1-6 alkylcarbamoyl, di(C1-6 alkyl)carbamoyl, aminocarbamoyl, dimethylamin

Abstract: A portable computer provided with a structure for mounting an auxiliary device with a front having a board connector and two opposite sides having symmetrical screw holes, including: a housing having a bottom, upper surface and internal space; a printed circuit board (PCB) mounted on the bottom of the housing having a device connector for connecting to the auxiliary device; a keyboard assembly detachably attached to the housing; a keyboard seat formed on the upper surface of the housing to mount the keyboard assembly, the keyboard seat having an opening for enabling the auxiliary device to be mounted on the bottom in the internal space of the housing with the board connector connected to the device connector, and a bracket having two end support parts and an upper support plate for fixedly attaching the auxiliary device to the bottom of the housing, one of the two end support parts being pivotably attached to the sides of the auxiliary device and the other end supported by an internal structure of the housing