摘要:
An insulated gate semiconductor device in which the ON voltage is decreased by providing strip like trenches (207) having gate electrodes (210) buried therein are formed in an upper main surface of a semiconductor base body (200), and an N+ emitter layer (206) is exposed in a ladder-like form in the upper main surface of the semiconductor base body interposed between adjacent trenches (207). Accordingly, even if the position of a zonal region (Ra) which is a contact surface with an emitter electrode (212) is shifted, the emitter electrode (212) is surely in contact with the N+ emitter layer (206). Furthermore, the ladder-like N+ emitter layer (206) is formed adjacent to the trench (7), so that a channel region (208) is formed without discontinuation along the trench (207). Accordingly, it has the effect of facilitating miniaturization of elements and of effectively making use of the miniaturization to decrease the ON voltage.
摘要:
A powdered base material treated with organic silicon compounds comprised of a powdered base material to which is preferably affixed one or more of metal hydroxides, hydroxy group-containing inorganic oxides and the gelated products thereof and to which are also affixed a reactive alkyl polysiloxane and a methyl hydrogen polysiloxane, preferably the methyl hydrogen polysiloxane represented by the following formula: (CH3)3SiO[(CH3)2SiO]m(CH3HSiO)nSi(CH3)3, wherein m and n are each an integer, and m+n=7 to 50, more preferably 7 to 25 and m:n =1:0.2 to 1:4, more preferably m:n=1:0.5 to 1:2. The obtained powdered base material treated with organic silicon compounds is superior in adhesion to the skin, free from flocculation, particularly smooth and soft to touch, has a color tone extremely high in saturation (good color extension ) when used in conjunction with a colored pigment and is also superior in hydrophobic properties and water-proofness without losing the characteristics of being free from residual hydrogen, and the properties of high safety and high quality.
摘要:
A part model creation unit creates part models necessary for the assembly of a three-dimensional object model, in the form of three-dimensional part models having junction reference data for joining to other part models, and stores them in a part storage unit. An assembly processing unit selects at least two part models from the part storage unit for the arrangement in a work coordinate space and joins the part models together on the basis of the junction reference point data to thereby assemble a three-dimensional object model.
摘要:
It is an object to compatibly realize a decrease in an on-state voltage and an increase in a current capable of turn-off. An N layer (43) having an impurity concentration higher than that of an N.sup.- layer (42) is formed between the N.sup.- layer (42) and a P base layer (44). In the exposed surface of the P base layer (44) connected to an emitter electrode (51), a P.sup.+ layer (91) having an impurity concentration higher than that of the P base layer (44) is formed. The formation of the N layer (43) allows the carrier distribution in the N.sup.- layer (42) to be close to the carrier distribution of a diode, so that the on-state voltage is decreased while maintaining high the current value capable of turn-off. Furthermore, the P.sup.+ layer (91) allows holes to easily go through form the P base layer (44) to the emitter electrode (51), which increases the current value capable of turn-off.
摘要:
A resin composition comprising a resin (a) and a conductive filler (b), wherein the resin (a) contains a styrene type thermoplastic elastomer and/or an olefin type thermoplastic elastomer, said resin composition having a volume resistivity of from 10.sup.2 to 10.sup.12 .OMEGA..multidot.cm and a compression set (Cs1) of at most 35% by JIS K6301.
摘要:
Disclosed is a magnetic recording medium characterized in that plural magnetic layers are provided on a non-magnetic support, the uppermost layer of the magnetic layers contains a ferromagnetic metallic powder and/or a hexagonal system magnetic powder and a binder, at least one layer other than the uppermost layer contains Co-containing iron oxide and a binder, the film thickness of the uppermost layer is 0.5 .mu.m or less, and the surface of the uppermost layer of the magnetic layers has an R.sub.10z value of the magnetic layer defined below of 50 nm or less, by which electromagnetic conversion characteristics of a magnetic recording medium can be improved.
摘要:
A work management system has input means having a function of inputting coordinate information from the surface of a panel, output means having a function of projecting electronic information onto the panel, and data processing means for executing a predetermined processing, e.g., preparation and input processing of a form, a chart or a drawing, retrieval, editing, totalization, etc., by establishing a correspondence between the information projected on the panel by using the output means and the coordinate information input from the input means. The data processing means displays a list of registered items to be designated in a window for selection of one of the items, whereas, when coordinate information is input from two points for an entry column for time setting, the data processing means draws a bar between the two points. Control information which is conformable to working hours of equipment at a work site, e.g., temporary lighting equipment, is generated by a preliminary arrangement system employing an electronic board, and the control information is transferred to a supervisory control system to effect supervisory control of the equipment on the basis of the control information.
摘要:
This invention is concerned with a process for separating isomers of disubstituted benzenes, wherein a mixture of isomers of disubstituted benzenes is contacted with a substituted cyclodextrin to form inclusion complexes, and desired isomers are recovered therefrom in a highly selective manner. The invention also provides substituted cyclodextrins suited for use in the process. Substituted cyclodextrins used in the process can be recovered and used repeatedly.
摘要:
A pyroelectric infrared detector for use in, for example, an intrusion alarming system has a pyroelectric element, a FET for picking up the output of the pyroelectric element, a capacitor connected in parallel to the pyroelectric element, and other circuit parts. These constituent parts are integrally packed in a package.
摘要:
A seal assembly for sealing a chamber formed between the radially inner and outer coaxial members spaced apart radially from each other and rotatable relative to each other comprises a first radial member extended radially inwardly from the outer member toward the outer periphery of the inner member, a second radial member disposed axially outside from the first radial member and extended radially outwardly from the inner member toward the outer member so that the first and second radial members may oppose to each other, a first seal means disposed between the tip end of the first radial member and the inner member, a second seal means disposed between a side surface of the first radial member and the second radial member, and a third seal means disposed between the outer member and the second radial member, the first, second and third seal means being so formed that leak of lubricant contained in the chamber may be permitted, while flow of foreign material from exterior may be prevented.