摘要:
A color printing paper includes a substrate having a printing region and a plurality of photonic crystal patterns formed on the printing region. The plurality of photonic crystal layer patterns have different respective optical reflection characteristics. The printing method includes selecting pixels including a plurality of photonic crystal layer patterns that express at least one of a red color, a green color, and a blue color, and changing optical reflection characteristics of at least a portion of the plurality of photonic crystal layer patterns of the selected pixels.
摘要:
A resonator including a substrate, and a resonating unit having an active region that causes resonances and a non-active region that does not cause resonances, and having a first electrode, a piezoelectric film, and a second electrode layered in turn on the substrate. At least one of the first and the second electrodes is formed, so that at least a portion of a non-active region portion thereof has a thickness different from that of an active region portion thereof.
摘要:
An molding apparatus includes a core having a recessed part corresponding to a protruding part of a molded article, an ejector pin movably provided in the core to eject the molded article, an ejector sleeve movably provided in the core to push the protruding part of the molded article, and an ejector actuating part to move the ejector pin and the ejector sleeve together to a separation position where the protruding part of the molded article is separated from the recessed portion of the core, to bring the ejector sleeve into a stop position so that the ejector sleeve does not protrude from the core, and to move the ejector pin from the separation position to a removal position where the molded article is spaced apart from the core by a predetermined distance. Accordingly, the molding apparatus is capable of preventing damage caused on an ejector sleeve.
摘要:
Provided are a perpendicular magnetic recording head and a method of manufacturing the same. The perpendicular magnetic recording head includes a main pole including a pole tip applying a recording magnetic field to a recording medium, a coil surrounding the main pole in a solenoid shape such that recording magnetic field for recording information to a recording medium is generated at the pole tip, and a return yoke forming a magnetic path for the recording magnetic field together with the main pole and surrounding a portion of the coil passing above the main pole. The number of times that the coil passes above the main pole is smaller than the number of times that the coil passes below the main pole.
摘要:
A lead frame having a structure that can discharge hydrogen adsorbed during deposition and can reduce a galvanic potential difference between plating layers and a method of manufacturing the same are provided. The method includes forming a Ni plating layer formed of Ni or a Ni alloy on a base metal layer formed of a metal, forming a Pd plating layer formed of Pd or an Pd alloy on the Ni plating layer, heat-treating the Ni plating layer and the Pd plating layer, and forming a protective plating layer on the heat-treated Pd plating layer.
摘要:
Provided is a method for manufacturing a lead frame and a semiconductor package having a semiconductor chip for connecting to an outer board and having a base metal layer formed of iron and nickel as main elements. The method includes preparing the base metal layer of a lead frame, forming one or more plating layers on the base metal layer, mounting the semiconductor chip on the lead frame, molding the semiconductor chip and at least a portion of the lead frame, bending the lead frame to form the lead frame in a predetermined shape, and heat-treating the lead frame for forming a diffusion layer in order to protect the lead frame from corrosion.