Abstract:
A surface magnetostatic wave device includes an Fe-containing garnet single crystal film grown on a gadolinium gallium garnet substrate. The crystallographic plane azimuth of the gadolinium gallium garnet substrate can be one of a (110) plane, a (100) plane, and a (211) plane. The device achieves both a reduced saturation magnetization and a reduced anisotropic magnetic field to thereby minimize the lowest frequency in the propagation band.
Abstract:
A method of producing a solid oxide fuel cell which has a generating section composed of a fuel electrode, a solid electrolyte and an air electrode, and interconnectors. A glass-containing joining agent is put among an edge of the generating section and edges of the interconnectors. Then, the glass-containing joining agent is heated and fused, and the edges of the interconnectors are connected to the edge of the generating section when the glass-containing joining agent is cooled. The joining agent may be a green sheet made of a glass-containing material or made of a mixture of glass and ceramics, or a thin plate made of a glass-containing material.
Abstract:
A material for magnetostatic wave devices comprises a thin single-crystalline magnetic film consisting essentially of a magnetic garnet containing iron, and at least one element of zirconium and hafnium incorporated therein. The content of zirconium and/or hafnium is less than or equal to 1000 wt.ppm.
Abstract:
A microactuator having a piezoelectric material and a drive electrode formed adjacent to the piezoelectric material is manufactured by forming an electroplating electrode on a substrate and providing a photosensitive material layer on the substrate on which the electroplating electrode is formed. The photosensitive material layer is exposed in a desired pattern. The exposed photosensitive material layer is developed to partially remove the exposed photosensitive material layer. A metal with electroplating is filled in a substrate portion from which the photosensitive material layer is removed, so that a drive electrode is formed. A remaining photosensitive material layer is removed. Finally, a piezoelectric material is selectively filled in a substrate portion adjacent to the drive electrode.
Abstract:
A thin film of barium titanate is formed on a substrate by immersing a substrate in an aqueous solution containing titanium ions along with a glass substance mainly comprising barium oxide and silicon dioxide. In the solution, barium ions are eluted from the glass substance with the solution to react with titanium ions in the solution to deposit barium titanate on the substrate.
Abstract:
A DNA gene which encodes transglutaminase, a plasmid in which the DNA gene is incorporated, a transformant transformed with the plasmid and a process for the production of transglutaminase that comprises culturing the transformant.
Abstract:
A solid oxide fuel cell which has a solid electrolyte having an air electrode and a fuel electrode on its upper and lower surfaces respectively. The fuel electrode is made of a mixture of nickel, zirconium oxide and chromium oxide.
Abstract:
A method for preparing a magnetic recording medium comprises delivering a substrate from a delivery roller, passing the substrate through one or a plurality of conveying rollers and forming a magnetic recording layer on said substrate by the physical vapor deposition method in the course of running along the circumferential surface of a rotatory drum, characterized in that said substrate is heated between the delivery roller and the conveying roller or between a conveying roller and another conveying roller, and the conveying roller through which said substrate passes after heating is made an expander roller.
Abstract:
A semiconductor device with a circuit including a fuse wiring which comprises a step portion provided on a first insulating film which is provided on a substrate; a fuse wiring provided on the step portion via a second insulating film so that the central portion of the fuse wiring traverses the step portion; the central portion of the fuse wiring being positioned at a higher position than both the side portions thereof by a distance equal to the thickness of the step portion; and a third insulating film having a flat surface provided on the fuse wiring.
Abstract:
A redundant circuit of a semiconductor device comprises a fuse (73) for laser trimming to connect between aluminum interconnections (6). The fuse (73) has a two-layer structure comprising a first film (3a) of polysilicon and a second film (7a) formed on the film (3a) of metal silicide, the line width l.sub.0 of the first film (3a) being shorter than the line width l.sub.1 of the second layer (7a). In addition, a PSG film (4) is formed to cover the fuse (73), and the laser beam is irradiated on the PSG film (4) in disconnecting the fuse (73). Accordingly, the first film (3a) having a short line width is uniformly fused and expanded, the fuse (73) is uniformly disconnected, and an opening (10) formed after explosion and splash thereof becomes smaller.