A method for manufacturing a semiconductor module, includes the steps of preparing a board; mounting a semiconductor device on the second metal foil; placing a resin case onto the board for surrounding a first metal foil, an insulating sheet, the second metal foil, and the semiconductor device; pouring a resin in a paste form into the case to fill a space relative to the first metal foil, insulating sheet, the second metal foil and the semiconductor device; and heat-curing the resin. A bottom end of a peripheral wall of the case is located above a bottom surface of the first metal. The bottom surface of the first metal foil and the resin form a flat bottom surface to contact an external mounting member.
A semiconductor device having an IGBT includes: a substrate; a drift layer and a base layer on the substrate; trenches penetrating the base layer to divide the base layer into base parts; an emitter region in one base part; a gate element in the trenches; an emitter electrode; and a collector electrode. The one base part provides a channel layer, and another base part provides a float layer having no emitter region. The gate element includes a gate electrode next to the channel layer and a dummy gate electrode next to the float layer. The float layer includes a first float layer adjacent to the channel layer and a second float layer apart from the channel layer. The dummy gate electrode and the first float layer are coupled with a first float wiring on the base layer. The dummy gate electrode is isolated from the second float layer.
In a method for producing a patterned media type magnetic recording medium, the magnetic recording medium is produced by partially processing the magnetic layer of a magnetic recording medium where at least a magnetic layer and a protective layer are formed sequentially on a substrate and forming a pattern of protrusions and recesses. The magnetic recording medium has a first mask layer and a resin mask layer sequentially on the protective layer. The method comprises a step for partially processing and removing the resin mask layer and the first mask layer of the magnetic recording medium, a step for partially processing and removing the protective layer not masked and the magnetic layer, and a step for removing the resin mask layer together with the first mask layer by using a gas component reacting only to the unremoved first mask layer material.
G11B 5/84 - Processes or apparatus specially adapted for manufacturing record carriers
G11B 5/65 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
G11B 5/855 - Coating only part of a support with a magnetic layer
This invention provides a magnetic recording medium comprising a nonmagnetic substrate and at least a magnetic layer, a protective layer, and a lubricating layer provided on the nonmagnetic substrate. The magnetic recording medium is characterized in that the lubricating layer is formed of a lubricating agent represented by general formula (1), (2) or (3), substituents R1, R2, R3, and R4 in the lubricating agent represent an organic group, at least one of the substituents R1 and R2 at the end part of the lubricating agent and the substituents R3 and R4 contain a plurality of functional groups, and the shortest distance between the functional groups is a distance of three or more atoms, preferably five atoms. The magnetic recording medium may be used for a heat assisted recording method in which the temperature of the magnetic layer reaches 150°C to 200°C. The magnetic recording medium is characterized in that the amount of the lubricating agent volatilized in the lubricating layer is less than 10% of the initial layer thickness.
Disclosed is a perpendicular magnetic recording medium which enables to reduce noises to achieve a higher recording density. The perpendicular magnetic recording medium comprises a non-magnetic substrate (1), and at least a soft magnetic layer (2), a first orientation control layer (3), a second orientation control layer (4), a non-magnetic intermediate layer (5), a magnetic recording layer (6) and a protective layer (7) laminated on the substrate (1) in this order. The first orientation control layer (3) comprises a thin film having an fcc structure. The magnetic recording layer (6) comprises at least one thin film which comprises a ferromagnetic crystal grain mainly composed of a ferromagnetic CoPt alloy and a non-magnetic grain boundary mainly composed of an oxide and surrounding the crystal grain. The non-magnetic intermediate layer (5) comprises a thin film made of Ru or a Ru-containing alloy. The second orientation control layer (4) comprises an alloy thin film comprising at least one or more elements selected from Ni and Fe and having an fcc structure, and has a saturation flux density [Bs] of 1 T or less, preferably 0.5 T or less.
G11B 5/738 - Base layers characterised by the intermediate layer
G11B 5/65 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
G11B 5/667 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers including a soft magnetic layer
Provided is a vertical magnetic recording medium on which recording is more easily performed without deteriorating thermal stability. In the vertical magnetic recording medium, at least a soft magnetic lining layer (2), a base layer (3) and a magnetic recording layer are sequentially laminated on a nonmagnetic base body (1). The magnetic recording layer is provided with at least a first magnetic recording layer (5), a second magnetic recording layer (7) and a third magnetic recording layer (8). A coupling layer (6) is arranged between the first magnetic recording layer (5) and the second magnetic recording layer (7). The first magnetic recording layer (5) and the second magnetic recording layer (7) having the coupling layer (6) in between are ferromagnetically coupled and are composed of a granular structure. The first magnetic recording layer (5), the second magnetic recording layer (7) and the third magnetic recording layer (8) have magnetization easy axes in a direction vertical to the nonmagnetic base body surface.
G11B 5/66 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
G11B 5/65 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
G11B 5/738 - Base layers characterised by the intermediate layer
Disclosed is a perpendicular magnetic recording medium which enables to improve SNR to achieve a higher recording density. The medium comprises a non-magnetic substrate (1), and at least a soft magnetic layer (2), a first orientation control layer (3), a non-magnetic intermediate layer (5), a perpendicular magnetic recording layer (6) and a protective layer (7) laminated on the substrate (1) in this order. The first orientation control layer (3) comprises a thin film having an fcc structure. The non-magnetic intermediate layer (5), which contacts with the perpendicular magnetic recording layer (6), comprises a thin film having an hcp structure and preferably made of Ru or a Ru-containing alloy. The magnetic recording layer (6) preferably comprises a granular magnetic layer which comprises a ferromagnetic crystal grain mainly composed of a ferromagnetic CoPt alloy and a non-magnetic grain boundary mainly composed of an oxide and surrounding the crystal grain. A second orientation control layer (4) comprising an alloy containing at least Co and Cr is arranged between the first orientation control layer (3) and the non-magnetic intermediate layer (5) so as to contact with the non-magnetic intermediate layer (5).
G11B 5/738 - Base layers characterised by the intermediate layer
G11B 5/65 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
G11B 5/667 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers including a soft magnetic layer
8.
ELECTRONIC CIRCUIT DEVICE AND METHOD FOR MANUFACTURING THE SAME
Provided is an electronic circuit device wherein a pair of substrates are arranged in the vertical direction and the periphery of the lower substrate is filled with a filling material. The electronic circuit device is small and low-cost, with high vibration resistance and high reliability of the upper substrate. The electronic circuit device is provided with a lower substrate (5) whereupon a main circuit is formed; an upper substrate (6) whereupon a drive control circuit is formed for drive-controlling the main circuit; and a resin case (3), which has an external extraction terminal (9) of the main circuit and the drive control circuit on an external surface of a peripheral section, and has a substrate storing space inside the peripheral section. A space above the lower substrate (5) is filled with the filling material by arranging the upper substrate (6) above the lower substrate (5). The filling material is composed of a resin, and a supporting body (2), which is positioned and fixed above the lower substrate with the resin in a cured state, is arranged, and the upper substrate (6) is fixed and supported by the supporting body (2).
H01L 25/07 - Assemblies consisting of a plurality of individual semiconductor or other solid state devices all the devices being of a type provided for in the same subgroup of groups , or in a single subclass of , , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
H01L 25/18 - Assemblies consisting of a plurality of individual semiconductor or other solid state devices the devices being of types provided for in two or more different subgroups of the same main group of groups , or in a single subclass of ,
9.
ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR AND A METHOD OF MANUFACTURING THE SAME
An object of the present invention is to provide an electrophotographic photoconductor that achieves improved stability of electrical performances and prevents generation of image faults such as memories, irrespective of types of organic materials of resin binder and charge transport material, and variation of temperature and humidity of the operation environment. An electrophotographic photoconductor comprises at least a photosensitive layer formed over a conductive substrate, wherein the photosensitive layer contains a cyclohexane dimethanol-diaryl ester compound represented by the formula (I): in formula (I), each of R1 through R10 represents independently, a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group of carbon number of from 1 to 5, a substituted or unsubstituted aryl group, or a substituted or unsubstituted alkoxy group of carbon number of from 1 to 5.
G03G 5/05 - Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
G03G 5/14 - Inert intermediate or cover layers for charge- receiving layers
Disclosed is a compound having excellent electron transporting ability, which is useful for electrophotographic photosensitive bodies or organic EL devices. Also disclosed is a highly sensitive, positive charge type electrophotographic photosensitive body for copying machines and printers, wherein the novel organic material is used as a charge-transporting material in a photosensitive layer. Further disclosed is an electrophotographic apparatus using such a positive charge type electrophotographic photosensitive body. Specifically disclosed is a novel quinone compound having a structure represented by the general formula (I) below. Also specifically disclosed is an electrophotographic photosensitive body having a photosensitive layer formed on a conductive base and containing a charge-generating material and a charge-transporting material, wherein the photosensitive layer contains at least one of the above-described compounds. (I)
G03G 5/06 - Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
It is possible to prevent generation of micro-particles by friction between a storage disc and a package. The package includes a container body (1), a lower cover (2), and an upper cover (3). The container body (1) is a bottom-less and cover-less square container having holding grooves (15) at both side surfaces (4, 4) for inserting a storage disc D. The storage disc D has a circular shape and is contained in a row in the longitudinal direction of the container body (1). The lower cover (2) covers the lower opening of the container body (1). The upper cover (3) covers at least the open top of the container body (1) and has a notch (14) and an elastic protrusion (18). The notch (14) supports the upper end of the storage disc D inserted into the holding grooves (15, 15) and suppresses deflection in the row direction. The elastic protrusion (18) protrudes in an inversed V shape at the both sides of the notch (14) so as to press downward the both shoulders of the storage disc D by its elastic force, thereby suppressing the deflection of the storage disc D in the radial direction and preventing deflection of the storage disc.
Oxygen is introduced into an N- type wafer (10) to be an N- type first semiconductor layer, then, a P type second semiconductor layer (2) and an anode electrode (4) are formed on the front plane of the FZ wafer (10). The FZ wafer (10) is irradiated with protons from the side of the anode electrode (4), and crystal defects (12) are introduced into the FZ wafer (10). The net doping concentration at a part in the first semiconductor layer is permitted to be higher than the initial net doping concentration of the FZ wafer (10) by restoring the crystal defects (12) in the FZ wafer (10) by performing heat treatment, and a desired broad buffer structure is formed. Thus, a semiconductor device having high-speed, low-loss and soft switching characteristics is manufactured at a low cost with excellent controllability and high yield by using the FZ bulk wafer.
H01L 21/265 - Bombardment with wave or particle radiation with high-energy radiation producing ion implantation
H01L 21/322 - Treatment of semiconductor bodies using processes or apparatus not provided for in groups to modify their internal properties, e.g. to produce internal imperfections
H01L 29/739 - Transistor-type devices, i.e. able to continuously respond to applied control signals controlled by field effect
H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate
This invention provides a semiconductor pressure sensor which can solve a problem that, when the pressure of a pressure medium containing a corrosive substance such as exhaust gas is measured with a semiconductor pressure sensor, an aluminum electrode, an aluminum wire, and an input/output terminal are attacked by a corrosive gas, thereby improving the corrosion resistance of a sensor chip, and, at the same time, can particularly improve the corrosion resistance of a part as a pressure-sensitive part. The corrosion of an electrode is prevented by providing titanium tungsten layer and a gold layer on an aluminum electrode as a corrosion site. The corrosion of a connection wire by a corrosive substance can be prevented by using a gold wire as the connection wire. The corrosion of an input/output terminal can be prevented by plating the input/output terminal with gold.
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
H01L 29/84 - Types of semiconductor device controllable by variation of applied mechanical force, e.g. of pressure
A diaphragm (2) is supported on a substrate (1) having an opening. One plane of the diaphragm (2) faces the opening. A thin film coil (3) is a spiral coil having a flat plane shape wherein the coil goes around one axis. A yoke (5) is formed on a cover section (4), and a permanent magnet (6) is arranged at a center portion of the yoke (5). A space (7) is formed between the diaphragm (2) and the yoke (5). The thickness is reduced by forming the thin film coil (3) on the diaphragm (2). Since the space (7) between the permanent magnet (6) and the thin film coil (3) is small, a sufficient drive force for the diaphragm (2) can be obtained even with a small magnetic force. Thus, a thin, small and low-power consumption electro-acoustic transducer can be provided.
A perpendicular magnetic recording medium includes a soft magnetic backing layer, an underlayer, a nonmagnetic intermediate layer, and a magnetic recording layer sequentially deposited on a nonmagnetic substrate. The underlayer can contain cobalt, nickel, and iron and have an fcc structure and exhibit soft magnetic property. The underlayer preferably contains nickel in a range of 30 to 88 at % and iron in a range of 0.1 to 22 at %. The underlayer can further contain Si, B, Nb, N, Ta, Al, Pd, Cr, or Mo. The nonmagnetic intermediate layer preferably contains at least one element selected from Ru, Re, Pd, Ir, Pt, and Rh. The magnetic recording layer preferably has a granular structure. A seed layer can be further provided between the soft magnetic backing layer and the underlayer.
G11B 5/66 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
⏧PROBLEMS] To provide a high durable photosensitive article for an electrophotograph which has a surface being excellent in lubricity and less susceptible to scraping or scratching, and can be free from the occurrence of the image defect due to filming or the like, and further exhibits good releasability of a toner. ⏧MEANS FOR SOLVING PROBLEMS] A photosensitive article for an electrophotograph having an electroconductive substrate and, formed thereon, at least a photosensitive layer, wherein it comprises, in the outermost layer thereof, microcapsules having a lubricating oil encapsulated therein. The microcapsule preferably comprises an inorganic porous particle or an organic polymer material, and the lubricating oil is preferably a silicone oil or a fluorooil.
G03G 5/05 - Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
17.
Magnetic recording medium and method for manufacturing the same
A magnetic recording medium, and method of manufacturing the same, is provided with excellent recording performance by employing a granular magnetic layer having a specified composition. A magnetic recording medium according to the present invention comprises a nonmagnetic underlayer, a granular magnetic layer, a protective film, and a liquid lubrication layer sequentially laminated on a nonmagnetic substrate. The granular magnetic layer consists of ferromagnetic crystal grains containing cobalt and nonmagnetic grain boundary region surrounding the ferromagnetic crystal grains. The ferromagnetic crystal grains contain platinum in the range of 15 at % to 17 at %.
G11B 5/66 - Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
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