Abstract:
An alkylated bisphenol-based compound, a method of preparing the same, sulfonated polyarylene sulfone polymer prepared from the alkylated bisphenol-based compound, a method of preparing the polymer, and a fuel cell using the sulfonated polyarylene sulfone polymer.
Abstract:
Disclosed is a stock account/order/market price inquiry service method using a mobile terminal that is able to perform a stock account/order/market price inquiry service through a mobile terminal using a stock chip. A stock account/order/market price inquiry service method comprising the steps of: (1) displaying a lower menu page on a mobile terminal of the stock account/order service after a PIN authentication; (2) generating an account/order service request message on the basis of stock chip information read from a stock chip and service request information corresponding to the lower menu and then transmitting the same to a relay server; and (3) receiving a service response message corresponding to service request message from the relay server and displaying the same on the screen of a mobile terminal.
Abstract:
An apparatus for winding, in the form of a quadrupole, an optical fiber used for forming a sensor coil of a fiber optic gyroscope. A center shaft is supported by a pair of support sections. A cylindrical spool is fitted around the center shaft. A pair of winding disks are arranged adjacent to both ends of the spool so that they can be rotated about the center shaft. A pair of reels are mounted to facing surfaces of the winding disks so that both halves of the optical fiber to be wound on the spool can be wound on the reels, respectively. The winding disks can be rotated at the same velocity in opposite directions. The cylindrical spool is installed to be reciprocated along an axis of the center shaft. The respective reels mounted to the winding disks are spaced apart from each other by a predetermined interval.
Abstract:
Methods of forming an electronic structure can include forming an interlayer insulating layer on a substrate, and forming a storage node comprising a base and sidewalls extending away from the base. The interlayer insulating layer can have a contact hole therein exposing a portion of the substrate. Moreover, the storage node base can be in the contact hole and the sidewalls can extend away from the base and away from the substrate with portions of the sidewalls being within the contact hole and with portions of the sidewalls extending outside the contact hole beyond the interlayer insulating layer away from the substrate. Related structures are also discussed.
Abstract:
Provided is a method of fabricating a shallow trench isolation (STI) structure having a high aspect ratio and improved insulating properties. The exemplary method includes filling a shallow trench isolation region opening with an undoped polysilicon layer, removing an upper portion of the undoped polysilicon layer to form a second opening having a reduced aspect ratio relative to the original opening and filling the second opening with an insulating material to complete the STI structure. Additional protective layers including silicon oxide, silicon nitride and/or a capping layer may be provided on the sidewalls of the opening before depositing the undoped polysilicon.
Abstract:
A method of forming an interconnection layer in a semiconductor device is provided that improves the mass productivity and the reliability of the interconnection by forming a sidewall spacer on the sidewalls of a trench that is formed in an insulation film having a low dielectric constant. The sidewall spacer maintains the sidewall profile of the trench during subsequent processing steps.
Abstract:
A method of forming a thin film of copper on a substrate includes a first step of conducting a chemical vapor deposition (CVD) process using a metal organic (MO) source while applying a first bias voltage to the surface of the substrate and a second step of conducting a chemical vapor deposition process using a metal organic source while applying a second bias voltage to the substrate, wherein the second bias voltage is opposite in polarity to the first bias voltage. The process may include a third step of conducting a chemical vapor deposition process using a metal organic source while applying a third bias voltage to the substrate, where the third bias voltage has the same polarity as the first bias voltage.
Abstract:
The present invention relates to a method of registering a membership for an electronic payment, a system for same, and an apparatus and a terminal thereof. The system according to the present invention includes: a terminal for receiving an application identifier, registering payment means information and processing a membership registration completion, when at least one or more of first authentication information, second authentication information and fourth authentication information input by a user is authenticated; and a membership registration apparatus for, when at least one or more of a first authentication procedure completion signal, a second authentication procedure completion signal and a fourth authentication procedure completion signal is received from the terminal, confirming whether membership application of user information on the terminal is performed, allocating the application identifier to perform electronic payment, and completing membership registration for the user information on the terminal after registering the payment means information.
Abstract:
A composition for cleaning a magnetic pattern, a method of manufacturing a magnetic memory device, a method of forming a magnetic pattern, and a magnetic memory device, the composition including a glycol ether-based organic solvent; a decomposing agent that includes an aliphatic amine; and at least one of a chelating agent, or a cleaning accelerator that includes an organic alkaline compound, wherein the composition is devoid of water.
Abstract:
A sulfonated poly(arylene sulfone) contains an unsaturated bond. A cross-linked material may be formed from the sulfonated poly(arylene sulfone), and a clay nanocomposite may include the sulfonated poly(arylene sulfone) or the cross-linked material. A fuel cell includes the clay nanocomposite.