Abstract:
A photo-detecting device includes a buried doping layer of a first conductivity type and disposed at an upper portion of a silicon substrate. A first silicon epitaxial layer of first conductivity type is disposed on the buried doping layer, and a second silicon epitaxial layer of second conductivity type is disposed on the first silicon epitaxial layer. An isolation doping layer doped of first conductivity type is disposed at a predetermined region of the second silicon epitaxial layer to define a body region of second conductivity type. A silicon germanium epitaxial layer of second conductivity type is disposed on the body region.
Abstract:
Disclosed is an arylphenoxy catalyst system for producing an ethylene homopolymer or copolymers of ethylene and α-olefins, and a method of producing an ethylene homopolymer or copolymers of ethylene and α-olefins having a high molecular weight under a high temperature solution polymerization condition using the same. The catalyst system includes a group 4 arylphenoxy-based transition metal catalyst and an aluminoxane cocatalyst or a boron compound cocatalyst. In the transition metal catalyst, a cyclopentadiene derivative and arylphenoxide as fixed ligands are located around the group 4 transition metal, arylphenoxide is substituted with at least one aryl derivative and is located at the ortho position thereof, and the ligands are not crosslinked to each other. The catalyst includes non-toxic raw materials, synthesis of the catalyst is economical, and thermal stability of the catalyst is excellent. It is useful for producing an ethylene homopolymer or copolymers of ethylene and α-olefins having various physical properties in commercial polymerization processes.
Abstract:
Provided is a navigation system using a RFID system and a method for displaying a construction area road. The navigation system includes a RFID tag for storing construction information, and upon receipt of a predetermined command, transmitting the construction information; and a RFID reader for transmitting an information read command to the RFID tag, and receiving the construction information in response to the information read command. A bypass path is re-searched depending on the received construction information, and path guidance is performed.
Abstract:
A synchronous dynamic random access memory capable of accessing data in a memory cell array therein in synchronism with a system clock from an external system such as a central processing unit (CPU). The synchronous DRAM receives an external clock and includes a plurality of memory banks each including a plurality of memory cells and operable in either an active cycle or a precharge cycle, a circuit for receiving a row address strobe signal and latching a logic level of the row address strobe signal in response to the clock, an address input circuit for receiving an externally generated address selecting one of the memory banks, and a circuit for receiving the latched logic level and the address from the address input circuit and for outputting an activation signal to the memory bank selected by the address and an inactivation signals to unselected memory banks when the latched logic level is a first logic level, so that the selected memory bank responsive to the activation signal operates in the active cycle while the unselected memory banks responsive to the inactivation signals operate in the precharge cycle.
Abstract:
A synchronous dynamic random access memory capable of accessing data in a memory cell array therein in synchronism with a system clock from an external system such as a central processing unit (CPU). The synchronous DRAM receives an external clock and includes a plurality of memory banks each including a plurality of memory cells and operable in either an active cycle or a precharge cycle, a circuit for receiving a row address strobe signal and latching a logic level of the row address strobe signal in response to the clock, an address input circuit for receiving an externally generated address selecting one of the memory banks, and a circuit for receiving the latched logic level and the address from the address input circuit and for outputting an activation signal to the memory bank selected by the address and an inactivation signals to unselected memory banks when the latched logic level is a first logic level, so that the selected memory bank responsive to the activation signal operates in the active cycle while the unselected memory banks responsive to the inactivation signals operate in the precharge cycle.
Abstract:
A synchronous dynamic random access memory capable of accessing data in a memory cell array therein in synchronism with a system clock from an external system such as a central processing unit (CPU). The synchronous DRAM receives an external clock and includes a plurality of memory banks each including a plurality of memory cells and operable in either an active cycle or a precharge cycle, a circuit for receiving a row address strobe signal and latching a logic level of the row address strobe signal in response to the clock, an address input circuit for receiving an externally generated address selecting one of the memory banks, and a circuit for receiving the latched logic level and the address from the address input circuit and for outputting an activation signal to the memory bank selected by the address and an inactivation signals to unselected memory banks when the latched logic level is a first logic level, so that the selected memory bank responsive to the activation signal operates in the active cycle while the unselected memory banks responsive to the inactivation signals operate in the precharge cycle.
Abstract:
The present invention relates to a method for fabricating a semiconductor laser diode in optical communication system, having the steps for forming current blocking layers on the resulting structure of the mesa structure and then forming an opening through the current blocking layer on the mesa structure.
Abstract:
An airport runway approach lighting apparatus is disclosed. According to one embodiment. the airport runway approach light includes a visible light source configured to emit a visible light brain and an infrared light source configured to emit an infrared beam. A first lens is attached to the visible light source to change the visible light beam emitted from the visible light source to a desired visible light beam pattern. The infrared light source includes a plurality of semiconductor laser diodes distributed on a surface of a laser diode chip in an array.
Abstract:
An organic light emitting diode (OLED) display includes a substrate main body, a plurality of organic light emitting elements on the substrate main body, a column spacer on the substrate main body and between two or more of the plurality of organic light emitting elements, and an encapsulation thin film covering at least one of the organic light emitting elements and having regions divided by the column spacer.
Abstract:
Disclosed herein is a catalyst, including, in one example: a carrier, a polymer electrolyte multilayer film formed on the carrier, and metal particles dispersed in the polymer electrolyte multilayer film. The catalyst can be easily prepared, and can be used to produce hydrogen peroxide in high yield in the presence of a reaction solvent including no acid promoter.