摘要:
The present invention is directed to an optical disk having a projection that prevents full contact of the upper surface of the disk when engaging a supporting surface. The optical disk includes a projection formed in a central portion of the optical disk that abuts or is near the upper surface of a protecting layer.
摘要:
The present invention is directed to an optical disk having a projection that prevents full contact of the upper surface of the disk when engaging a supporting surface. The optical disk includes a projection formed in a central portion of the optical disk that abuts or is near the upper surface of a protecting layer.
摘要:
A recording medium and a method for manufacturing the same are disclosed. More particularly, a recording medium having a high density and high energy transfer efficiency and a method for manufacturing the same are disclosed. The recording medium includes a substrate, a recording layer formed on the substrate, a first cover layer having a first hardness formed on the recording layer, and a second cover layer having a second hardness arranged on the first cover layer.
摘要:
The present invention relates to lipid removed scaffolds(lipid-free scaffolds) for human tissue volume replacement or cell culture. More particularly, the present invention relates to a method for preparing lipid removed scaffolds(lipid-free scaffolds) for human tissue volume replacement or cell culture, the method comprising the steps of: fragmenting fat tissue to isolate lipids by ultrasonic treatment or high pressure nozzle spray; removing the isolated lipids and fat tissue from which lipids were not isolated to sterilize. According to the present invention, lipids are removed from fat tissue only by physical treatment to maintain the volume thereof and microstructures such as cellular membrane as much as possible and thus the inventive scaffolds are useful for human tissue volume replacement.
摘要:
The present invention provides a valve for an engine and a method for treating the surface thereof. The valve for the engine includes a buffer layer, an intermediate layer, a TiAlN/CrN first nanostructured multilayer, and a TiAlCN/CrCN second nanostructured multilayer. The buffer layer is coated over a surface of a stem part as a lowermost layer and is formed of Ti or Cr. The intermediate layer is coated over the buffer layer and is formed of CrN, TiN, or TiCN. The TiAlN/CrN first nanostructured multilayer is coated over the intermediate layer. The TiAlCN/CrCN second nanostructured multilayer is coated over the TiAlN/CrN first nanostructured multilayer as an uppermost layer.
摘要:
Provided is a mask pattern of a semiconductor device. The mask pattern includes a plurality of main patterns and a plurality of assistance patterns. The main patterns are adjacent to one another. The assistance pattern is disposed on at least one of an end portion and a middle portion of each of the main patterns and has a line width greater than that of the main pattern. The assistance patterns are staggered.
摘要:
The present invention provides a phase shift mask and fabricating method thereof, by which a critical dimension of a semiconductor pattern can be accurately formed in a manner of compensating a boundary step difference between an active area and an insulating layer. The present invention includes a transparent substrate and at least two halftone layers on the transparent substrate to have light transmittance lower than that of the transparent substrate, each comprising front and rear parts differing in thickness from each other.
摘要:
A phase shifting photomask fabrication method includes the steps of forming a recess in an upper surface of a transparent substrate having a depth sufficient to shift a phase of light, forming an opaque layer on the transparent substrate including the recess, forming a first patterning layer having a plurality of openings on the opaque layer, forming a plurality of side wall spacers on each side wall of the first patterning layer, etching the opaque layer by using the side wall spacers and exposing the transparent substrate, forming a second patterning layer on the exposed transparent substrate exposing a portion of the transparent substrate by selectively etching portions covered by the first patterning layer and the opaque layer, etching the exposed transparent substrate to a depth sufficient to effect a phase shift, and removing the side wall spacers and the second patterning layer. This method eliminates a micro loading effect by separately forming a wider main opening pattern unit and a narrower sub-opening pattern unit, and accurately controls the phase shift, improving reliability of the photomask.
摘要:
A phase shift mask device includes a transparent substrate; a first rim type part on the transparent substrate, the first rim type mask part including a first phase shift layer, a second phase shift layer adjacent the first phase shift layer, and a light transparent portion adjacent the second phase shift layer; a first outrigger type mask part on the transparent substrate spaced from the first rim type mask part by a first distance, the first outrigger type mask part including a first phase shift layer, a second phase shift layer adjacent the first phase shift layer, a shielding layer adjacent the first phase shift layer, and a light transparent portion adjacent the second phase shift layer; a second rim type mask part on the transparent substrate having a diagonal relationship with respect to the first rim type mask, the second rim type mask part including a first phase shift layer, a second phase shift layer adjacent the first phase shift layer, and a light transparent layer portion adjacent the second phase shift layer; and a second outrigger type mask part on the transparent substrate having a diagonal relationship with respect to the first outrigger type mask part, the second outrigger type mask part including a first phase shift layer, a second phase shift layer adjacent the first phase shift layer, a shielding layer adjacent the first phase shift layer, and a light transparent portion adjacent the second phase shift layer.
摘要:
A phase-shifting mask which has a supplementary pattern arranged for preventing unwanted constructive interference of light caused when isolated patterns (transparent regions) are arranged adjacently. Also, a method for manufacturing such a phase-shifting mask, including the steps of providing a transparent substrate, a phase-shifting layer having transparent regions formed on the transparent substrate, and a supplementary light shielding patterns formed on the phase-shifting layer between the transparent regions.