Abstract: A semiconductor DNA sensing device is provided herein, which includes a detection section with a field-effect transistor including a semiconductor substrate and a first insulator layer formed thereon as a reactive gate insulator, the first insulating layer including silicon oxide or an inorganic oxide, a first organic monolayer formed on the first insulator layer, the first organic monolayer comprising an organic molecule having a reactive functional group, and a probe DNA containing 3 to 35 nucleotides bonded to the first organic monolayer by the reactive functional group either directly or by an intervening crosslinker, the structure of the probe DNA/the first organic monolayer/the insulating layer/the semiconductor constituting the detection section.

Abstract: Molecular sensing of target molecules is performed by using an electrode for molecular sensing in which detecting molecules which can shift a surface potential of the electrode by an interaction with the target molecules are bound directly or via coupling molecules to surface hydroxyl groups on a conductive metal oxide. By this molecular sensing, specific target molecules can be detected selectively and stably with high accuracy. It is also possible to detect an enantiomer selectively and stably with high accuracy. The present invention can provide a chemical sensing system which is useful in fields such as medicines, environments and foods.

Abstract: A method of manufacturing ULSI wiring in which wiring layers are separately formed via a diffusion prevention layer with an insulating interlayer portion made of SiO2. The method comprises the steps of treating, with a silane compound, an SiO2 surface on which the insulating interlayer portion is to be formed, performing catalyzation with an aqueous solution containing a palladium compound, forming the diffusion prevention layer by electroless plating, and then forming the wiring layer on this diffusion prevention layer. Furthermore, a capping layer is formed on the wiring layer by electroless plating. Consequently, the diffusion prevention layer having good adhesive properties can all be formed through a simple process by wet processes, and further, the wiring layer can directly be formed on this diffusion prevention layer by the wet process. In addition, the capping layer can directly be formed on this wiring layer by electroless plating.

Abstract: A gold-cobalt based amorphous alloy plated film consisting of a homogeneous amorphous phase not having microcrystals is formed by electroplating conducted by use of an electroplating bath containing a gold cyanide salt in a concentration of 0.01 to 0.1 mol/dm3 in terms of gold, a cobalt salt in a concentration of 0.02 to 0.2 mol/dm3 in terms of cobalt, and a tungstate in a concentration of 0.1 to 0.5 mol/dm3 in terms of tungsten. The gold-cobalt based amorphous alloy plated film obtained consists of a homogeneous amorphous phase not having microcrystals, and has an enhanced hardness while retaining the good contact resistance and chemical stability intrinsic of gold on such levels as to be free of problems on a practical use basis; therefore, the gold-cobalt based amorphous alloy plated film is effective for use as a contact material in electric and electronic component parts such as relays.

Abstract: The laminated structure includes a substrate of low dielectric constant material of silicon compound and an electroless copper plating layer laminated thereon with a barrier layer. The barrier layer is interposed between the substrate and the copper layer, and the barrier layer is formed by electroless plating. And the laminated structure is characterized in that the barrier layer is formed on the substrate with a monomolecular layer of organosilane compound and a palladium catalyst which are interposed between the substrate and the barrier layer, the palladium catalyst modifies the terminal, adjacent to the barrier layer, of the monomolecular layer, and the barrier layer includes an electroless NiB plating layer which is disposed on the substrate side, and a electroless CoWP plating layer.

Abstract: A silica-based interlayer insulating layer having a low dielectric constant is formed with SOG material on a substrate, in which a wiring-layer forming space is then formed. If necessary, a UV ray irradiation is performed under an oxidizing atmosphere. A Si—OH bond is formed on a surface of the insulating layer. A monomolecular layer film is then adhered to the inner surface of the space, which is then modified to be a catalyst with a solution containing Pd compound. On the catalyst monomolecular layer, a copper-diffusion-resistant film is formed by electroless plating, on which a copper plate is then formed as a wiring layer.

Abstract: A process for producing a perpendicular magnetic recording medium comprises forming metallic nuclei or a seed layer on a non-magnetic substrate, and forming a soft magnetic under layer on the metallic nuclei or the seed layer by means of electroless plating. The soft magnetic under layer is formed while an external parallel magnetic field is applied to the non-magnetic substrate, and the substrate is rotated such that the substrate is maintained parallel to the parallel magnetic field.

Abstract: A cathode catalyst for a fuel cell is inexpensive and has high durability against methanol. A method of manufacturing and fixing the cathode catalyst, and a fuel cell including it, are disclosed. The cathode catalyst includes a compound selected from the group consisting of PdSn, PdAu, PdCo, PdWO3, and mixtures thereof. The present invention can provide a non-platinum-based cathode catalyst as a substitute for a platinum catalyst, the cathode catalyst having a low cost and improved catalyst activity, thereby contributing to popular use of a fuel cell. In addition, since the cathode catalyst of the present invention has high durability against methanol and can thereby be used with a fuel in a high concentration, it can increase the energy density of a direct methanol fuel cell (DMFC).

Abstract: The laminated structure includes a substrate of low dielectric constant material of silicon compound and an electroless copper plating layer laminated thereon with a barrier layer. The barrier layer is interposed between the substrate and the copper layer, and the barrier layer is formed by electroless plating. And the laminated structure is characterized in that the barrier layer is formed on the substrate with a monomolecular layer of organosilane compound and a palladium catalyst which are interposed between the substrate and the barrier layer, the palladium catalyst modifies the terminal, adjacent to the barrier layer, of the monomolecular layer, and the barrier layer includes an electroless NiB plating layer which is disposed on the substrate side, and a electroless CoWP plating layer.

Abstract: A semiconductor sensing field effect transistor uses an organic unimolecular film formed on a gate insulating layer. In the semiconductor sensing field effect transistor and a semiconductor sensing device, the gate insulating layer has a stack structure wherein a second silicon oxide layer is stacked on a first silicon oxide layer through a silicon nitride layer. A semiconductor sensor chip and the semiconductor sensing device are provided with a field effect transistor chip wherein the gate insulating layer, a source electrode and a drain electrode are integrated on a silicon board, a source electrode terminal wiring connected with the source electrode, and a drain electrode terminal wiring connected with the drain electrode.

Abstract: A semiconductor DNA sensing device having a detection section is provided. The detection section comprises a structure of a probe DNA/a first organic monolayer/an insulating layer/a semiconductor. The field-effect transistor (FET) comprises a semiconductor substrate and a first insulator layer formed thereon as a reactive gate insulator, and the first insulating layer comprises silicon oxide or an inorganic oxide. The first organic monolayer formed on the first insulator layer comprises an organic molecule having a reactive functional group. The probe DNA contains 3 to 35 nucleotides, and this probe DNA is bonded to the first organic monolayer by the reactive functional group either directly or by an intervening crosslinker.

Abstract: When a soft magnetic layer for a double layer type perpendicular magnetic recording medium is formed by a plating method, there is the problem of the occurrence of an isolated pulse noise called spike noise so that signal reproduction characteristics are lost. In order to solve this problem, provided are a surface-treated substrate for a magnetic recording medium comprising a substrate having a diameter of not more than 90 mm, and a soft magnetic plating layer comprising an alloy of at least two metals selected from the group consisting of Co, Ni and Fe, which is provided above the substrate, wherein the soft magnetic layer has a coercivity of less than 20 oersted (Oe) in a direction that is parallel to a substrate surface, and wherein a ratio of saturation magnetization to residual magnetization in a direction that is parallel to a surface of the substrate is from 4:1 to 4:3; and a magnetic recording medium comprising the magnetic recording medium substrate.

Abstract: A capacitor capable of being incorporated into a packaging substrate, which capacitor includes a high-dielectric-constant layer, and an upper electrode layer and a lower electrode layer sandwiching the high-dielectric-constant layer from the upper side and the lower side. A packaging substrate containing the capacitor, and a method for producing the same are also provided.

Abstract: A gold-cobalt based amorphous alloy plated film consisting of a homogeneous amorphous phase not having microcrystals is formed by electroplating conducted by use of an electroplating bath containing a gold cyanide salt in a concentration of 0.01 to 0.1 mol/dm3 in terms of gold, a cobalt salt in a concentration of 0.02 to 0.2 mol/dm3 in terms of cobalt, and a tungstate in a concentration of 0.1 to 0.5 mol/dm3 in terms of tungsten. The gold-cobalt based amorphous alloy plated film obtained consists of a homogeneous amorphous phase not having microcrystals, and has an enhanced hardness while retaining the good contact resistance and chemical stability intrinsic of gold on such levels as to be free of problems on a practical use basis; therefore, the gold-cobalt based amorphous alloy plated film is effective for use as a contact material in electric and electronic component parts such as relays.

Abstract: A capacitor capable of being incorporated into a packaging substrate, which capacitor includes a high-dielectric-constant layer, and an upper electrode layer and a lower electrode layer sandwiching the high-dielectric-constant layer from the upper side and the lower side. A packaging substrate containing the capacitor, and a method for producing the same are also provided.

Abstract: A fuel cell includes a substrate having a pair of grooves, an electrolyte membrane lying on the substrate so as to define a pair of flow channels, and catalyst-bearing current collector layer sections disposed on the inner wall of the grooves or the inside surface of the electrolyte membrane defining the channels. A fuel liquid flows through the first channel to undergo anodic reaction, an oxidant liquid in the form of an aqueous hydrogen peroxide solution flows through the second channel to undergo cathodic reaction, and hydrogen ions traverse the electrolyte membrane.

Abstract: A soft magnetic thin film of CoFe alloy having a high Br and low Hc is prepared by furnishing a plating tank including cathode and anode compartments which are separated by a diaphragm or salt bridge so as to permit charge transfer, but inhibit penetration of Fe ions, feeding a plating solution containing Co ions and divalent Fe ions to the cathode compartment, feeding an electrolyte solution to the anode compartment, immersing a substrate in the plating solution, immersing an anode in the electrolyte solution, electroplating, and heat treating the plated film at 100–550° C.; or by immersing a substrate and a soluble anode in a plating solution containing Co ions and divalent Fe ions, electroplating, and heat treating the plated film at 100–550° C.

Abstract: A magnetic recording medium that enables enhancement of squareness ratio and Hn and exhibits excellent noise characteristics and thermal stability is disclosed. A production process for the medium, and a magnetic recording and reproducing apparatus are also disclosed. The magnetic recording medium including a substrate 1, a carbon-containing carbon undercoat film 2 formed thereon, and a perpendicular magnetic film 3, in which most of easy-magnetization axes are oriented vertically with respect to the substrate, formed on the undercoat film. The perpendicular magnetic film is formed through a plurality of sputtering operations using at least one element selected from Pt and Pd and through a plurality of sputtering operations using a Co-containing material.

Abstract: A magnetic recording medium comprises a substrate, an undercoat layer, a magnetic layer, and a protective film. The undercoat layer and the magnetic layer are provided atop the substrate. The magnetic layer contains a noble metal layer containing Pt or Pd, a cobalt layer containing Co, and a non-magnetic material layer containing C or Si or Ge.

Abstract: A perpendicular magnetic recording medium includes a non-magnetic substrate, and at least a soft magnetic under layer formed of a soft magnetic material, an alignment-regulating layer for regulating the crystal alignment of a layer provided directly thereon, a perpendicular magnetic layer in which easy-magnetization axes are oriented generally perpendicular to the substrate, and a protective layer, the layers and the layer being provided atop the substrate, wherein the soft magnetic under layer exhibits magnetic isotropy or has easy-magnetization axes oriented perpendicular to the substrate. According to the present invention, an undercoat layer having no magnetic domain walls can be formed. When the undercoat layer is employed, there can be provided a perpendicular magnetic recording medium and a perpendicular magnetic recording and reproducing apparatus which exhibit high thermal stability and excellent noise characteristics, and which attain high-density recording.