摘要:
There is provided a multilayer ceramic electronic component. The multilayer ceramic electronic component includes a ceramic main body including a dielectric layer, and first and second internal electrodes disposed to face each other within the ceramic main body and having the dielectric layer interposed therebetween. When an average roughness of center lines of the first and second internal electrodes is Ra, a maximum distance from a virtual line corresponding to Ra to a bottom of a pit (d) formed below the virtual line is 0.1 μm to 13 μm. The surface roughness of the internal electrode printed surface is improved to decrease the occurrence of electrical shorts.
摘要:
There are provided a gravure printing engraving roll and a manufacturing method thereof. The gravure printing engraving roll includes: a base layer provided with gravure printing patterns; and a reinforcement coating layer applied to the base layer in order to reinforce strength of the base layer, the reinforcement coating layer including a first reinforcement layer formed on the base layer by a wet plating method, a second reinforcement layer forming an outer surface of the reinforcement coating layer, a first adhesive layer disposed between the first and second reinforcement layers and providing adhesive strength to a surface of the first reinforcement layer, and a second adhesive layer providing adhesive strength between the first adhesive layer and the second reinforcement layer.
摘要:
A method is provided for preparing an instant embryo bud-retaining white rice product. The rice is polished like white rice using a low-speed, uniform pressure method to keep embryo buds and is rich in nutrients and has white rice's flavor. Its lipid oxidation is similar to that of white rice. The immersion time period of the embryo bud-retaining white rice is controlled so as not to generate sticky materials after the immersion, thus allowing effective sterilization of the rice. Therefore, the instant embryo bud-retaining white rice can be stored at room temperature for 6 months or longer.
摘要:
A semiconductor device package is equipped with devices for preventing the formulation of air traps in its encapsulated package body. These devices include dummy block leads formed on the outermost inner lead of each row of inner leads, and extended portions formed on each tie bar. Each dummy block lead extends from the end of an outermost inner lead and is integrally formed therewith. The tie bar extended portions are separated into several parts defined by spaces between the parts, and the several parts are formed integral with each other and with the tie bar. The dummy block leads and the tie bar extended portions may be formed so as to be inclined relative to horizontal and with jagged edges at their side surfaces. The dummy block leads and tie bar extended portions serve to reduce the velocity of the potting resin which forms the encapsulate, as it enters the die cavity for encapsulation, but before the resin actually contacts the chip or the inner leads. Thereby, the flow velocity at various points within the mold cavity is uniform, and formation of air traps is prevented.
摘要:
Semiconductor devices and methods for manufacturing a semiconductor device include a first semiconductor substrate in which a first scribe line region and a first chip region are defined, a first alignment mark inside the first semiconductor substrate and in the first scribe line region so as to be spaced apart from an upper side of the first semiconductor substrate, a second semiconductor substrate on the first semiconductor substrate and in which a second scribe line region and a second chip region are defined, and a second alignment mark inside the second semiconductor substrate and in the second scribe line region so as to be spaced apart from an upper side of the second semiconductor substrate, wherein the second semiconductor substrate is on the first semiconductor substrate so that positions of the first alignment mark and the second alignment mark correspond to each other.
摘要:
A semiconductor device, a semiconductor package, and a package stack structure include a semiconductor substrate, a first bonding pad disposed on a first surface of the semiconductor substrate, and a first pillar disposed on the first bonding pad. An upper surface of the first pillar has a concave shape. Side surfaces of the first pillar are substantially planar.
摘要:
A touch screen panel for an image display device and a method of fabricating the same. The touch screen panel includes first and second substrates facing each other, the first and second substrates being joined together by a sealant; a plurality of first sensing patterns coupled to one another along a first direction on a side of the first substrate facing the second substrate; a plurality of second sensing patterns coupled to one another along a second direction on a side of the second substrate facing the first substrate; a plurality of first dummy patterns between the first sensing patterns corresponding to the second sensing patterns; a plurality of second dummy patterns between the second sensing patterns corresponding to the first sensing patterns; and an insulating layer between the first and second substrates.
摘要:
A method and an apparatus for manufacturing an optical fiber preform. The method manufactures the optical fiber preform by depositing soot created through a chemical reaction on an inside wall of a reaction tube. The created soot is charged with a first predetermined charge to adhere soot, which is not deposited on the inside wall of the tube, to an electrified body charged with a second predetermined charge opposite to the first predetermined charge. The electrified body is adapted for movement to transport the unused soot to an exterior of the reaction tube. The electrified body is energized with a charge identical to the first predetermined charge of soot, thereby exhausting soot adhering to the electrified body to an exterior of the reaction tube.