摘要:
A recording medium for information comprising a substrate, a recording layer provided on the substrate, in which crystalline phases and amorphous phases are reversibly created in accordance with irradiation energy of a light beam irradiated onto the recording layer, wherein the recording layer includes a ternary alloy having the same composition as an alloy of InTe and In.sub.50-X/2 Sb.sub.50-X/2 Te.sub.X (where X satisfies 20.ltoreq.X.ltoreq.45), i.e.,{In.sub.(100-y)/200 Sb.sub.(100-y)/200 Te.sub.y/100 }.sub.100-z In.sub.z/2 Te.sub.z/2wherein25.ltoreq.y.ltoreq.45 atom %, and0 40 atom % or y
摘要:
A magneto-optical data reading member includes a transparent disk substrate, and land-shaped areas formed on the disk substrate in a spiral manner so as to be parallel with each other, and groove-shaped areas formed to be stepped with respect to the land-shaped areas, wherein each of the land-shaped and groove-shaped areas has, in a surface region thereof, a first magnetic film for reading data having a predetermined Curie temperature and a predetermined magnetic coercive force, and a second magnetic film for reading data, formed on the first magnetic film, having a Curie temperature higher than the predetermined Curie temperature and a magnetic coercive force higher than the predetermined magnetic coercive force, and having a plurality of memory pits in series according to the information data to be recorded.
摘要:
A recording medium for information comprising a substrate, a recording layer provided on the substrate, in which crystalline phases and amorphous phases are reversibly created in accordance with irradiation energy of a light beam irradiated onto the recording layer, wherein the recording layer includes a ternary alloy having the same composition as an alloy of In.sub.3 SbTe.sub.2 and In.sub.50-X/2 Sb.sub.50-X/2 Te.sub.X (where X satisfies 25.ltoreq.X.ltoreq.45), i.e., {(InSb).sub.(100-Y)/200 Te.sub.Y/100 }.sub.100-Z(In.sub.3 Sb.sub.Te.sub.2).sub.Z (where Y, Z satisfy 25.ltoreq.Y.ltoreq.45 and 0.ltoreq.Z.ltoreq.70, and 30.ltoreq.Z.ltoreq.40 and 70
摘要:
Long term stability of a focussed ion beam from a liquid metal ion source is maintained by the combination of a conventional analog feedback technique using a beam current detection, with a superimposed digital control using a CPU which monitors current, beam current and beam extraction voltage to determine the current source state and controls the source to produce optimum operation.
摘要:
A corrosion-resistant aluminum electronic material comprising an alloy containing aluminum as the principal component and, in addition, a small amount of a noble metal, the content of said noble metal being equal to or less than that at the eutectic point having the primary crystal of aluminum. As the noble metal, there is contained at least one metal selected from Pt, Pd, Rh, Ir, Os, Ru, Au and Ag. Said electronic material is used for ball-bonding wire and distributing film in a semiconductor device, and the like.
摘要:
Azulene derivatives of the following formula ##STR1## wherein R.sup.1 stands for an alkyl group of 1 to 3 carbon atoms, R.sup.2 stands for an alkyl group of 1 to 3 carbon atoms, and R.sup.3 is at the 5- or 6-position and stands for an alkyl group of 1 to 6 carbon atoms, an aryl group of 6 to 9 carbon atoms or an aralkyl group of 7 to 10 carbon atoms; have antihyperlipidemic activity. Many of the compounds are also novel per se.
摘要:
An optical disk comprises a polycarbonate substrate, a first protective layer, formed on the substrate and made of SiO.sub.2, a recording layer, formed on the first protective layer and made of an In-Sb-Te alloy, a second protective layer, formed on the recording layer and made of SiO.sub.2, and a surface protective layer, formed on the second protective layer and made of an ultraviolet curable resin. The recording layer has a composition of In.sub.50-x Sb.sub.50 Te.sub.y Au.sub.Z wherein x, y, and z are in atomic %, x=y+z, y.gtoreq.2z, and 1.ltoreq.x.ltoreq.6), In.sub.50-x Sb.sub.50-x Te.sub.y Au.sub.z (wherein 2x=y+z and 0
摘要:
An optical disk is formed by stacking a polycarbonate substrate with a first protective layer of amorphous silicon, a recording layer of an InSb alloy, and a second protective layer of an ultraviolet-setting resin, in the order named. The first and second protective layers are formed by sputtering and spin-coating, respectively. After the recording layer of the optical disk, formed in this manner, is subjected to initial crystallization, a light beam is applied to the recording layer. Thereupon, the irradiated portion of the recording layer undergoes phase transformation, thus forming recording marks in different crystal phases. Information is read by applying a weak laser beam to the recording layer with the recording marks therein. As the recording marks are cooled gradually by being exposed to a laser beam, they undergo phase transformation, so that the information is erased.
摘要:
Azulene derivatives of the following formula ##STR1## wherein R.sup.1 stands for an alkyl group of 1 to 3 carbon atoms, R.sup.2 stands for an alkyl group of 1 to 3 carbon atoms, and R.sup.3 is at the 5- or 6- position and stands for an alkyl group of 1 to 6 carbon atoms, an aryl group of 6 to 9 carbon atoms or an aralkyl group of 7 to 10 carbon atoms; have antihyperlipidemic activity. Many of the compounds are also novel per se.
摘要:
An amorphous silicon film forming apparatus forms an amorphous silicon film on a substrate. The apparatus is provided with a sealed vessel whose inside space is defined as a reaction chamber. A gas inlet pipe for introducing a gas containing SiH4 into the reaction chamber is connected to the vessel. A facing electrode provided in the reaction chamber and a power source connected to the facing electrode convert in a plasma generating region the gas introduced into the reaction chamber by the gas inlet pipe into plasma. A conductive mesh structure is disposed in the reaction chamber so as to surround the plasma generating region.