摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
At least two exhaust holes are formed in an atomizing nozzle of an apparatus for spraying an air-water mist for cooling which is used in continuous metal casting. The respective spraying mist streams from the exhaust holes cross each other before they reach the surface of a cast strand and are diffused forwardly due to the influence of the kinetic energy which is directed in the spraying direction after they crossed, so that they sufficiently enter the region between the surfaces of guide rollers and cast strand, thereby directly spraying the air-water mist over almost the entire region of the surface of the cast strand. In addition, a header is disposed in parallel to the guide rollers and a plurality of water branching pipes are attached in line to the header in the longitudinal direction thereof. The inner diameter of these water branching pipes are set to be sequentially smaller toward the lower stage. The back pressures of the atomizing nozzles are reduced by causing pressure losses in the water branching pipes coupled to the atomizing nozzles, thereby spraying a uniform flow rate of the water from each water branching pipe.
摘要:
About 1 to about 25% by weight of a liquid refrigerant is mixed into a refrigerant gas to be introduced into a screw compressor by suction on the basis of the refrigerant gas in a refrigerator comprising a screw compressor, a condenser, and an expansion valve and an evaporator connected to one another in series. A cooling effect as well as a sealing effect can be satisfactorily attained thereby.
摘要:
In an electronic component, an active chip element and a passive chip element are respectively enclosed within first and second resin layers, which are separately disposed on upper and lower surfaces of a core substrate, respectively. The first resin layer includes a shielding metal film disposed on an upper surface thereof and a first via-hole conductor which connects the shielding metal film with a circuit pattern provided on the core substrate. The second resin layer includes an external-terminal electrode disposed on a lower surface thereof and a second via-hole conductor which connects the external-terminal electrode with a circuit pattern provided on the core substrate.
摘要:
The present invention provides a bacterium belonging to the family Enterobacteriaceae, which is able to produce L-cysteine and has been modified to increase the activity of the protein encoded by the dsbA gene. This bacterium is cultured in a medium, and L-cysteine, L-cystine, a derivative or precursor thereof or a mixture thereof can be collected from the medium.