摘要:
Disclosed is a method for fabricating a transistor of a memory device capable of preventing voids from being created when forming a low-resistant gate electrode. The method includes the steps of forming an active area by etching a semiconductor substrate, forming a field oxide layer in the semiconductor substrate and forming a recess by etching the field oxide layer. A gate insulation layer is formed along an upper surface of the active area and an exposed portion of the active area. A gate electrode is formed on the field oxide layer such that the gate electrode extends across an upper portion of the active area while being overlapped with a channel area and the recess. The first conductive layer to be patterned has the same thickness, so the low-resistant gate electrode is easily fabricated without forming the voids.
摘要:
A memory device includes an active area protruding from a semiconductor substrate. A recess is formed in the active area. A field oxide layer is formed on the semiconductor substrate. A gate electrode extends across the active area while being overlapped with the recess. A gate insulation layer is interposed between the gate electrode and the active area. Source and drain areas are formed in the active area. The transistor structure above defines a recessed transistor structure if it is sectioned along a source-drain line and defines a Fin transistor structure if it is sectioned along a gate line. The transistor structure ensures sufficient data retention time and improves the current drivability while lowering the back bias dependency of a threshold voltage.
摘要:
Disclosed herein is a method for manufacturing a transistor in a semiconductor device, which can improve the refresh characteristics of the device. The method comprises the steps of: providing a silicon substrate having active and field regions defined thereon; performing a first channel ion implantation process into the silicon substrate; sequentially forming a hard mask film and a photoresist pattern exposing a gate formation region on the substrate into which the first channel ion implantation process has been performed; performing a second channel ion implantation process into the substrate at a higher concentration than that of the first ion implantation process using the photoresist pattern as an ion implantation mask, so as to form doped regions in the substrate at the gate formation region and both sides adjacent thereto; etching a hard mask film using the photoresist pattern as an etch barrier; removing the photoresist pattern; etching the substrate using a portion of the hard mask film remaining after the etching as an etch barrier, so as to form a groove; removing the hard mask film remaining after the etching; forming a gate in the groove of the substrate from which the hard mask film has been removed; and forming source and drain regions on the substrate at both sides of the gate.
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.