Abstract:
An electrostatic chuck structure according to example embodiments of the present invention may include at least one specific region of a conductor having a thickness relatively smaller than those of other regions, at least one specific region of a dielectric having a thickness relatively larger than those of other regions, or at least one specific region of a conductor having a thickness relatively smaller than those of other regions and at least one specific region of a dielectric having a thickness relatively larger than those of other regions. Therefore, etching rate and CD uniformity can be improved during a semiconductor manufacturing process.
Abstract:
An electrostatic chuck structure according to example embodiments of the present invention may include at least one specific region of a conductor having a thickness relatively smaller than those of other regions, at least one specific region of a dielectric having a thickness relatively larger than those of other regions, or at least one specific region of a conductor having a thickness relatively smaller than those of other regions and at least one specific region of a dielectric having a thickness relatively larger than those of other regions. Therefore, etching rate and CD uniformity can be improved during a semiconductor manufacturing process.
Abstract:
Provided is an apparatus and method for positioning a mobile object by combining Radio Frequency Identification (RFID), Global Positioning System (GPS), and Inertial Navigation System (INS). The apparatus and method can acquire positioning information stably and continuously even when GPS signals are cut off by combining the RFID positioning information with INS positioning information. The positioning apparatus includes: a GPS signal receiving unit; an RFID reading unit; an INS sensing unit; a GPS/RFID selecting unit for generating selection information for a positioning algorithm based on whether GPS positioning information transmitted from the GPS signal receiving unit can be used or not and whether a tag ID is acquired in the RFID reading unit; and an integrated positioning unit for acquiring the positioning information of the mobile object by executing any one selected from a group of a GPS/INS positioning algorithm, an RFID/INS positioning algorithm, and an INS positioning algorithm based on the selection information of the GPS/RFID selecting unit.
Abstract:
A telemetry data retrieval apparatus and method for post-processing are provided. The telemetry data retrieval apparatus may include a retrieval initiating unit to receive an input of a retrieval time, and to calculate a percentage of the retrieval time during an entire retrieval period, a start position calculating unit to calculate a retrieval start position in which data retrieval is started within a stored file, based on the calculated percentage, and a telemetry data retrieval unit to verify a start pattern and a time tag from the calculated retrieval start position, and to retrieve a position of telemetry data in the stored file.
Abstract:
An apparatus for automatically generating satellite operation procedure (SOP) parameters is provided. The apparatus includes a parameter extraction unit configured to extract one or more SOP parameters corresponding to an SOP; a transformation formula extraction unit configured to extract a transformation formula corresponding to the extracted SOP parameters; and a calculation unit configured to calculate values of the extracted SOP parameters based on property information for performing a satellite task and the extracted transformation formula.
Abstract:
Provided is a satellite control system based on integrated satellite operation data and a method thereof. The satellite control system includes: a satellite operation data schema editing means for creating a document type definition file and defining a schema; a mission planning means for creating a mission timeline and recording the mission timeline; a command planning means for converting a task into telecommands and recording the telecommand; a command preparing means for creating a telecommand procedure and recording the telecommand procedure; a command transmitting means for creating a telecommand code, transmitting the telecommand code to a satellite and recording the telecommand code; a command verifying means for receiving telemetry data and recording a telecommand verification result; and a performance result reporting means for creating a mission performance result and recording the mission performance result.
Abstract:
Provided are an apparatus and method for executing a telecommand on a geostationary satellite, and an apparatus and method for verifying a telecommand execution status on a geostationary satellite ground control system. When a telecommand on a satellite is executed, the satellite generates command execution verification words for the executed telecommand and adds the generated command execution verification words to a telemetry transfer frame, and thus a satellite ground control system can easily verify the telecommand execution. In addition, when telecommand execution result is verified by a satellite ground control system, since an execution result of a time-tag telecommand can be verified without a time delay through command execution verification words provided by a satellite, and a telecommand image DB, a telecommand verifier DB, and a telecommand verifier provided by the satellite ground control system, a series of processes from transmission to verification of a telecommand, in particular a time-tag telecommand, can be automatically processed in real-time without intervention of an operator.
Abstract:
Provided is a satellite control system based on integrated satellite operation data and a method thereof. The satellite control system includes: a satellite operation data schema editing means for creating a document type definition file and defining a schema; a mission planning means for creating a mission timeline and recording the mission timeline; a command planning means for converting a task into telecommands and recording the telecommand; a command preparing means for creating a telecommand procedure and recording the telecommand procedure; a command transmitting means for creating a telecommand code, transmitting the telecommand code to a satellite and recording the telecommand code; a command verifying means for receiving telemetry data and recording a telecommand verification result; and a performance result reporting means for creating a mission performance result and recording the mission performance result.
Abstract:
The present is directed to an apparatus for etching the top edge and bottom of a wafer. The apparatus includes a substrate support part for supporting a wafer and a movable protect part for preventing fluid for an etch from flowing into a non-etch portion of the wafer. The top edge and bottom of the wafer is etched by a wet etch, and a boundary of the non-etch portion and the edge of the wafer is etched by a dry etch.