Abstract:
본 발명의 기술을 이용하면 기존의 태양전지 모듈을 대면적화 시 모듈 간의 연결을 위해 사용되는 금속전선 또는 리본 등이 불필요하며 간편하게 모듈을 삽입하여 패널화를 제작할 수 있는 구조물을 통해 공정이 단순해지고 기존의 기술과는 다르게 박판 기판을 가지는 태양전지에도 적용 가능하며 만약 곡률이 있는 부위에 패널을 부착 시에도 적용 가능한 장점이 있다. 또한 박판 모듈의 경우 깨지기 쉬운 단점이 있어 취급이 어려우나 본 기술의 구조물에 삽입해 놓으면 파손의 위험이 줄어드는 장점도 있다.
Abstract:
PURPOSE: A wafer level package of a MEMS sensor and a manufacturing method thereof are provided to improve electrical contact reliability of the internal side and external side of the MEMS sensor by forming a top cooperation electrode within top glass. CONSTITUTION: A top cooperation electrode and a bottom cooperation electrode are respectively formed on the upper side of bottom glass and top glass(210). Via hole is formed within the top glass. A MEMS(Micro-electro-mechanical system) structure(230) is formed on the upper side of the bottom glass. An outer frame(235) is formed on the edge of the upper side of the bottom glass. The top glass is bonded to the upper side of the outer frame. A contact pad is formed on the upper side of the MEMS structure. The via hole exposes the contact pad formed on the upper side of the MEMS structure.
Abstract:
PURPOSE: A synchronizer hub for a vehicle and a manufacturing method thereof are provided to improve the strength of a synchronizer hub and to reduce the manufacturing cost by sintering and control-cooling the iron-based powder material in which the chrome and molybdenum are alloyed. CONSTITUTION: A synchronizer hub for a vehicle comprises a sleeve and a shaft. The sleeve is geared with a clutch gear. The shaft is combined to the inside of a synchronizer hub. The synchronizer hub is made of chrome of 2.7~3.3 weight%, molybdenum of 0.4~0.6 weight%, carbon of 0.4~0.6 weight%, and iron of rest.
Abstract:
PURPOSE: An apparatus for heating cooling water of a diesel engine using PTC elements is provided to prevent a cooling apparatus from being overheated by cutting off a current by rapidly increasing resistance if a temperature of a heating part becomes higher than a predetermined temperature. CONSTITUTION: An apparatus for heating cooling water is formed of a PTC(Positive Temperature Coefficient) heater(10) including a pair of heat sinks(12) and a plurality of PTC elements(11) connected with electrodes(13) respectively in a state that the plurality of PTC elements are inserted into mounting grooves(12a-2) of the heat sinks. The PTC heater has sealing grooves(12a-1,12b-1) formed at an inside combination surface(12a) and an outside cover combination body(12b), and an insert rubber(14) and a sealing rubber(15) installed at the sealing grooves respectively.
Abstract:
PURPOSE: Electrode composition for a fuel sender is provided to prevent malfunction of a fuel gauge by reducing a creation of an insulation layer through adding copper and cerium to electrode material of the fuel sender. CONSTITUTION: Copper and cerium are added to electrode material of a fuel sender having silver as main component, thereby preventing an insulation layer from being created on the fuel sender. Component of electrode material is adjusted in such a manner that a sulfuric compound layer causing a great contact resistance between an electrode and a contact of the fuel sender is prevented from being created on the fuel sender. That is, by adding copper and cerium to electrode material, erosion resistance against sulfuric component is increased and mechanical property and electric conductivity are properly maintained.
Abstract:
PURPOSE: Provided is a process for producing high abrasion-resistant friction material by adding base metal powder to a mixture comprising the base metal powder, hard particles, and a solid lubricant. CONSTITUTION: The high abrasion-resistant friction material is produced by mixing 75-85wt% of the base metal powder selected from the group consisting of Cu powder, Sn powder, Cu-Sn alloy powder and 15-25wt% of the hard particles to make mechanically alloyed powder, and adding less than 3wt% of the solid lubricant and 2-85wt% of another powder selected from the group consisting of the base metal powder, followed by forming and sintering. The hard particles are selected from the group consisting of FeMo, FeCr, FeTi, FeW, and FeB and have a particle size of less than 15 micrometer. And the solid lubricant is selected from the group consisting of CaF2, MoS2, and BN and has a particle size of less than 30 micrometer.