Abstract:
A plasma display device is disclosed. The plasma display device includes a plasma display panel (PDP), a printed circuit board assembly (PBA), and a flexible printed circuit (FPC) electrically connecting electrodes of the PBA and the PDP. In some embodiments, the FPC is formed of two films with signal lines therebetween and electrodes on opposite sides.
Abstract:
A field emission device, a field emission display device, and a method for manufacturing the same are disclosed. The field emission device includes: i) a substrate; ii) an electrode positioned on the substrate; iii) a mask layer positioned on the electrode and including one or more openings; and iv) a plurality of nanostructures positioned on the electrode via the openings and formed to extend radially. The plurality of nanostructures may be applied to emit an electron upon receiving a voltage from the electrode.
Abstract:
A heart valve prosthesis and a method of fabricating the same. The heart valve prosthesis uses a leaflet of pig pericardium or a leaflet of cattle pericardium, which has a suitable thickness according to the size of the valve, and a stent. The heart valve prosthesis is fabricated by placing a valve body over a Dacron body, binding the valve body to the Dacron body using stitching fiber, rolling the Dacron body into a cylindrical form such that the valve body is located inside, binding opposite edges of the Dacron body to each other using stitching fiber, and inserting the resultant structure into a stent, which is knitted using a shape memory alloy wire. The heart valve prosthesis is friendly to and is not rejected by human tissue, is free from deformation, and can be implanted using a non-invasive manner without incising the chest wall of a patient.
Abstract:
An apparatus and method for processing a substrate using neutralized beams are provided. A substrate processing apparatus includes an ion source generating device configured to form an ion source. An ion extraction device is configured to extract and accelerate ions from the ion source. An ion neutralizing device is configured to convert the ions extracted and accelerated from the ion extraction device into neutralized beams. A remaining portion of the ions extracted and accelerated from the ion extraction device is not converted into the neutralized beams. A substrate support is configured to support a substrate such that the neutralized beams are directed towards the substrate support. A substrate power supply is configured to apply a voltage to the substrate support such that the remaining portion of the ions that is not converted into the neutralized beams is directed away from the substrate support by the applied voltage of the substrate.
Abstract:
Provided are a color to grayscale image conversion method of converting a color image into a grayscale image while maintaining original features of the color image, and a recording medium storing a program for performing the same. When an original color image is input, a target gradient with the features of the input original color image is acquired, and a global mapping function for converting the original color image into a grayscale image is determined based on the acquired target gradient. Thereafter, the original color image is converted into a grayscale image using the determined global mapping function. Therefore, it is possible to quickly convert a color image into a grayscale image, and to acquire a high-quality grayscale image with features of color difference included in the original color image.
Abstract:
A method of manufacturing a nitride semiconductor device is disclosed. The method includes forming a gallium nitride (GaN) epitaxial layer on a first support substrate, forming a second support substrate on the GaN epitaxial layer, forming a passivation layer on a surface of the other region except for the first support substrate, etching the first support substrate by using the passivation layer as a mask, and removing the passivation layer and thereby exposing the second support substrate and the GaN epitaxial layer.
Abstract:
The present invention relates to a nitride semiconductor substrate such as gallium nitride substrate and a method for manufacturing the same. The present invention forms a plurality of trenches on a lower surface of a base substrate that are configured to absorb or reduce stresses on the base substrate that become larger from a central portion of the base substrate towards a peripheral portion when growing a nitride semiconductor film. That is, the present invention forms the trenches on the lower surface of the base substrate such that pitches get smaller or widths or depths get larger from the central portion of the base substrate towards the peripheral portion.
Abstract:
A linear vibrator is disclosed. In accordance with an embodiment of the present invention, the linear vibrator includes a base, a coil unit, which is coupled to the base, a magnet, which is coupled to the coil unit such that the magnet can move relatively with respect to the coil unit, and a leaf spring, which is interposed between the magnet and the base and includes a plurality of plate-shaped members having center portions thereof being separated from one another and both respective ends thereof being coupled to one another. Thus, the linear vibrator can increase the range of displacement in the leaf spring and increase the magnitude of vibration in the linear vibrator.
Abstract:
A method of selecting a sensor in a semiconductor manufacturing process is provided. The method includes measuring responses of a plurality of sensors when a first of a plurality of process conditions is varied, identifying one or more of the sensors having a steady state response after the first of the process conditions is varied, and selecting a sensor having a highest value within a response range from among the sensors having the steady state response for the first process condition that is varied. This methodology may be performed for multiple different process conditions. Thus, when process conditions in multiple processes of manufacturing a semiconductor device are varied, sensors having a steady state response can be selected from among multiple sensors for detecting abnormalities in the processes.
Abstract:
An active magnetic antenna with a ferrite core having a winding is provided, forming a frame magnetic antenna which is connected with a low-noise transistor, to amplify a signal of the frame magnetic antenna. A base of the transistor is connected directly to one contact of the winding, and a second contact of the winding is capable of shifting a voltage of the base of the transistor. The impedance of the frame magnetic antenna is adjusted as a complex conjugate with an impedance of the base of the transistor of the low-noise amplifier, and the winding eliminates its own resonances.