Abstract: A sub-harmonic mixer is provided, which includes: a mixer core having first and second transistors performing switching operations in response to a local oscillator (LO) signal and a radio frequency (RF) signal; a power source applying bias maximizing nonlinearity of a transistor included in the mixer core; an RF port applying an RF signal to the mixer core; an LO port applying an LO signal to the mixer core; and first and second phase delay circuits in which the RF signals applied to the first and second transistors have a 180-degree phase difference.

Abstract: A method of forming a fine T- or gamma-shaped gate electrode is provided, which is performed by a lithography process using a multi-layered photoresist layer having various sensitivities, deposition of an insulating layer, and an etching process.

Abstract: A dual-mode mobile terminal, which can access synchronous and asynchronous mobile communication systems, includes a key input panel and a controller. The key input panel includes a call switching key for switching between calls from the two systems and a call end key for ending calls from the two systems. While the terminal performs communication of one call received from one of the two systems in a general communication mode over a communication channel currently established by the one system, the controller determines whether an incoming call is received from the other system. If the incoming call is received, the controller notifies the user of receipt of the incoming call. If the call switching key is pressed, the controller prepares a communication environment for communication of the incoming call, allowing the user to perform the communication of the incoming call while maintaining the currently established communication channel.

Abstract: A process for preparing (+)-p-mentha-2,8-diene-1-ol comprising reacting (+)-limonene oxide with at least one amine in the presence of at least one Lewis acid to form amine adduct intermediates. The amine adduct is then oxidized to form an N-oxide that is pyrolized to form (+)-p-mentha-2,8-diene-1-ol.

Abstract: Disclosed is a main board of a portable terminal including a socket receiving an additional device, such as a memory card and being installed at one side of the main board, an interface connector attached to a printed circuit board, and a battery terminal attached to the printed circuit board. The interface connector and the battery terminal form a stacked structure together with the socket. The main board of the portable terminal is provided at a predetermined portion thereof with a stacked structure of the socket for receiving the memory card, the interface connector, and the battery terminal, thereby minimizing mounting space required for the above elements, ensuring mounting space for installing other parts, and efficiently utilizing part mounting space. The socket and the interface connector are located adjacent to each other, and the socket and the interface connector are exposed through a common opening, thereby making the assembly for the portable terminal more efficient.

Abstract: A method for fabricating a semiconductor device includes forming a first insulating layer over a substrate where a landing contact plug is formed, forming an etch barrier pattern having a line type open region over the first insulating layer, forming a second insulating layer for planarization over the etch barrier pattern, forming a contact mask having a hole type open region over the second insulating layer, performing a self-aligned contact etching process using the etch barrier pattern to etch the second insulating layer disposed under the hole type open region and the first insulating layer disposed under the line type open region to form a contact hole a bottom of which is opened above the landing contact plug, forming a storage node contact plug in the contact hole, and forming a storage node over the storage node contact plug.

Abstract: An aqueous rinse-added fabric treatment composition with improved anti-redeposition and fragrance delivery benefits. Methods of improving soil anti-redeposition, fragrance delivery and fabric treatment by rinsing the fabrics in a rinse solution comprising the inventive compositions.

Abstract: A function of emitting a color depending on a state of a mobile communication terminal is implemented. To do this, a keypad of the mobile communication terminal is illuminated with a color corresponding to a sensed result when a predetermined operation or event occurs. In order to illuminate the keypad according to a state of the mobile communication terminal using different colors, a keypad illumination unit includes a light source for generating a plurality of colors and a waveguide layer for diffusing light generated by the light source. Accordingly, a user can easily recognize a state of the mobile communication terminal through a color emitted through the keypad, and interest and convenience of the user can be satisfied with the mobile communication terminal emitting various colors.

Abstract: Provided is a method of fabricating a pseudomorphic high electron mobility transistor (PHEMT).

Abstract: An apparatus for preventing static electricity and electric shock for a mobile communication terminal is disclosed having a main body housing that is partially or entirely made of a conductive material. The apparatus includes a ground of a Printed Circuit Board (PCB) and a diode-varistor parallel circuit connected to the ground of the PCB to form a discharge path.

Abstract: Provided is a method of manufacturing a field effect transistor (FET).

Abstract: A method for forming a contact hole in a semiconductor device includes preparing a substrate including a bottom structure; forming an insulation layer such that the insulation layer covers the bottom structure; forming a silicon-rich oxynitride layer on the insulation layer; forming a photoresist pattern on the silicon-rich oxynitride layer; etching the silicon-rich oxynitride layer using the photoresist pattern as an etch mask, thereby obtaining hard masks; and etching the insulation layer using the photoresist pattern and the hard masks as an etch mask to form a contact hole exposing a portion of the bottom structure.

Abstract: A cyclodextrin-olivetol derivative complex is provided. The complex effectively blocks reaction at specific carbons to prevent unwanted reactions. A process for preparing a cannabinoid compound is further provided. The process comprises reacting at least one terpenoid with cyclodextrin-olivetol derivative complex to produce the cannabinoid compound.

Abstract: A method for forming a landing contact plug in a semiconductor device is provided. The method includes the steps of: forming a plurality of gate structures on a substrate, each gate structure including a gate hard mask; forming an inter-layer insulation layer over the gate structures; planarizing the inter-layer insulation layer until the gate hard mask is exposed; forming an etch barrier layer on the inter-layer insulation layer; etching a predetermined portion of the inter-layer insulation layer by using the etch barrier layer as an etch barrier to form a plurality of contact holes; forming a conductive layer until the conductive layer fills the contact holes; removing surface roughness created during the formation of the conductive layer by a first etch-back process; and planarizing the conductive layer by a second etch-back process until the gate hard mask is exposed.

Abstract: A combination system comprises a first environment storage part for storing data relating to an environment setup of the first device, a second environment storage part for storing data relating to an environment setup of the second device, a first controller for setting an environment of the first device by referring to the data stored in the first environment storage part, a second controller, the second controller for setting an environment of the second device by referring to the data stored in the second environment storage part, and an input device for receiving and transferring an environment setup command to the first controller. The first controller stores the environment setup command in the first environment storage part when the input environment setup command relates to the environment setup of the first device, and the first controller transfers the environment setup command to the second controller.

Abstract: A process for preparing (+)-p-mentha-2,8-diene-1-ol comprising reacting (+)-limonene oxide with at least one amine in the presence of at least one Lewis acid to form amine adduct intermediates. The amine adduct is then oxidized to form an N-oxide that is pyrolized to form (+)-p-mentha-2,8-diene-1-ol.

Abstract: A foldable bicycle includes a foldable bicycle frame which comprises a main frame and an enclosing frame foldably to define a receiving cavity; a front and a rear wheel assembly rotatably supported by the bicycle frame; a bicycle driving unit operatively mounted on the bicycle frame and connected to the two wheel assemblies for driving at least one of the wheel assemblies rotating; a steering unit longitudinally extended from the front wheel assembly for steering a moving direction of the front wheel assembly; and a folding arrangement. The folding arrangement includes a folding link connecting the front and the rear wheel assembly, the bicycle driving unit, the steering unit, the enclosing frame, and the main frame in a foldable manner; and a folding actuator operatively connected with the folding link in such a manner that the foldable bicycle is adapted to move between a folded position and an unfolded position.

Abstract: A vehicle wheel includes a wheel body having an elongated guiding slot radially extended from a center of the wheel body; and an axle centrifugal adjusting arrangement, which includes a sliding member slidably mounted along the guiding slot for mounting the wheel body to the wheel axle; and a gear adjustment device including a first gear unit mounted at the guiding slot of the wheel body, and a second gear unit mounted at the sliding member to substantially engage with the first gear unit so as to selectively adjust the sliding member to slide along the guiding slot.

Abstract: Disclosed is a main board of a portable terminal including a socket receiving an additional device, such as a memory card and being installed at one side of the main board, an interface connector attached to a printed circuit board, and a battery terminal attached to the printed circuit board. The interface connector and the battery terminal form a stacked structure together with the socket. The main board of the portable terminal is provided at a predetermined portion thereof with a stacked structure of the socket for receiving the memory card, the interface connector, and the battery terminal, thereby minimizing mounting space required for the above elements, ensuring mounting space for installing other parts, and efficiently utilizing part mounting space. The socket and the interface connector are located adjacent to each other, and the socket and the interface connector are exposed through a common opening, thereby making the assembly for the portable terminal more efficient.

Abstract: A high frequency switch device includes an epitaxy substrate that is formed by sequentially stacking an AlGaAs/GaAs superlattic buffer layer, a first Si planar doping layer, an undoped first AlGaAs spacer, an undoped InGaAs layer, an undoped second AlGaAs spacer, a second Si planar doping layer having a doping density greater than that of the first Si planar doping layer, and an undoped GaAs/AlGaAs capping layer on a GaAs semi-insulated substrate. The undoped GaAs/AlGaAs capping layer is formed with a source electrode and a drain electrode that form an ohmic contact with the undoped GaAs/AlGaAs capping layer thereon, and a gate electrode formed between the source electrode and the drain electrode, thereby forming a Schottky contact with the undoped GaAs/AlGaAs capping layer.