摘要:
A heater for a chemical vapor deposition equipment includes a meandering heating wire made of either molybdenum or tungsten and having a diameter of about 1 mm. The heating wire is laid on a heater disc that is made of either molybdenum, tungsten or ceramic. The heater disc is holed at its center for receiving a susceptor rotating shaft. A plurality of heating wire fixtures support the heating wire on the heater disc while spacing the heating wire from the heater disc at an interval, thus to prevent the heating wire from directly contacting the heater disc. Each of the heating wire fixtures is provided with a pair of lateral through holes, that is, a heating wire hole formed in an upper section of each fixture and a fixing wire hole formed in a lower section of each fixture. The heater also includes heat resisting plates that are made of either molybdenum or tungsten and placed on the bottom surface and the side surface of the heater disc for preventing side and downward radiation of the heat of the heating wire. The heater heats a substrate to a high temperature not less than 1500.degree. C. and achieves an excellent heating efficiency.
摘要:
An improved epitaxial growth rate varying method for a side surface of a semiconductor pattern capable of controlling a growth rate of a side surface of a semiconductor pattern by controlling the amount of CCl.sub.4 gas supplied when forming an epitaxial layer on a patterned GaAs substrate in a metalorganic chemical deposition method, thus fabricating a desired quantum wire, and which is characterized by controlling a side-surface growth rate of an epitaxial layer in accordance with the CCl.sub.4 doping gas flow rate while an epitaxial layer is formed on a patterned GaAs substrate in a metalorganic chemical deposition method and in achieving a desired substantial flatness.
摘要:
The technique of the delta-doping by metalorganic chemical vapor deposition (MOCVD) in GaAs epitaxial layer at 700.degree.-750.degree. C. after deposition of GaAs heteroepitaxial buffer layer exceeding 3 .mu.m thickness on silicon substrate.
摘要:
A method of manufacturing an LED package. The method includes dispensing a transparent resilient resin on an LED package body and overturning an entire structure to form an LED lens integrally provided to the LED package body. This prevents extra processes and costs incurring from forming intermediate layers and obviates degradation in reliability and light extraction efficiency due to additional interfaces.
摘要:
Disclosed is a method of manufacturing rear plate barrier ribs for Plasma Display Panel (PDP), which includes the steps of: forming barrier ribs by infiltrating the barrier rib forming paste into grooves of a mold by using the capillary phenomenon, and then sintering the paste. This method causes rare environmental pollution, enables to make barrier ribs having fine and complex shapes and reduces material costs required for the barrier rib. Thus, the method may improve quality of PDP and reduce manufacture costs of the rear plate.
摘要:
The invention relates to a light emitting diode package that can prevent deterioration of phosphor and a method of manufacturing the same. The light emitting diode package includes a package body having a recessed part, a light emitting diode chip mounted on a floor surface of the recessed part and a lens structure disposed on an upper surface of the package body, apart from the light emitting diode chip. Phosphor is dispersed in at least a part of the lens structure.
摘要:
Disclosed is a method of manufacturing barrier ribs for a Plasma Display Panel (PDP), which includes the steps of forming a thick film (or, “green tape”) for barrier ribs on a glass or metal substrate by using composition for forming the barrier ribs, which contains water soluble components and solvent soluble components together a binder; forming a protective pattern film partially soluble or insoluble to the water based solution on the thick film; etching the thick film into a barrier rib shape by using solution or mixed solution containing ceramic powder as an etching accelerator, and sintering the etched thick film. This method causes rare environmental pollution, enables to make barrier ribs having fine and complex shapes and reduces material costs required for the barrier rib. Thus, the method may improve quality of DPD and reduce manufacture costs of the rear plate.
摘要:
The invention relates to an LED package and proposes a method of fabricating an LED package including steps of providing a package substrate having a mounting area of an LED and a metal pattern to be connected with the LED, and plasma-treating the package substrate to reform at least a predetermined surface area of the package substrate where a resin-molded part will be formed. The method also includes mounting the LED on the mounting area on the substrate package and electrically connecting the LED with the metal pattern, and forming the resin-molded part in the mounting area of the LED to seal the LED package.
摘要:
A dual connection device for memory mediums has a body portion electrically connected with a mobile communication terminal, a first receiving portion formed to the body portion for receiving therein a first memory medium, a second receiving portion formed to the body portion as to be arranged piled up to the first receiving portion for receiving therein a second memory medium, a first connection terminal installed in the first receiving portion so as to be electrically connected with a terminal of the first memory medium, and a second connection terminal installed in the second receiving portion so as to be electrically connected with a terminal of the second memory medium. Since a plurality of memory mediums are connected with a terminal mobile communication terminal by the connection device, it is possible to make the mobile communication terminal have a slim and compact size, accomplish a simplified assembly process, and obtain increased productivity and cost reduction due to simplification of assembly process.
摘要:
A polycarbonate resin composition is provided. The composition comprises (A) 50 to 90% by weight of a polycarbonate resin, (B) 5 to 30% by weight of a polymethyl methacrylate resin, (C) 5 to 20% by weight of a phosphate compound, (D) 0.01 to 2% by weight of a metal sulfonate as an organic salt, and (E) 0.05 to 2% by weight of a fluorinated olefin. The composition is highly flame retardant and scratch resistant.