摘要:
The invention relates to a desired shaped plane type solar cell. The solar cell includes a plurality of photoelectric conversion devices formed by dividing the plane, a plurality of conductive paths for connecting each of the photoelectric conversion devices to each other in series, the conductive path being provided adjacent to the plurality of photoelectric conversion devices, and two drawing electrodes exposed on an opposite surface to a light irradiated surface, the electrodes being connected to two photoelectric conversion devices on both ends of the photoelectric conversion device connected in series.
摘要:
An insulated gate semiconductor device, includes an isolating structure shaped in a circulating section along the periphery of a semiconductor substrate to isolate that part from an inside device region, a peripheral diffusion region of the semiconductor substrate located outside the isolating structure, a plurality of cell structures defined in the inside device region and divided in segments by insulated trench-shaped gates to have a base region covered with an emitter region in its upper surface, a collector region, and an emitter electrode electrically connected to the emitter region and the base region, a dummy base region contiguous to the cell structures and configured as a base region that has its upper surface left without the emitter region connected to the emitter electrode, an inner region defined in and insulated from the dummy base region, and a connection part to electrically connect the inner region to the emitter electrode.
摘要:
A semiconductor device disclosed herein comprises: a first base region which is of a first conductivity type; a second base region which is of a second conductivity type and which is selectively formed on a major surface of the first base region; a stopper region which is of a first conductivity type and which is formed on the major surface of the first base region, the stopper region being a predetermined distance away from the second base region and surrounding the second base region; and a ring region which is of a second conductivity type which is formed on the major surface of the first base region between the second base region and the stopper region, the ring region being spirally around the second base region and electrically connected to the second base region and the stopper region.
摘要:
A semiconductor device comprises a first base layer of a first conductive type which has a first surface and a second surface; a second base layer of a second conductive type which is formed on the first surface; first and second gate electrodes which are formed by embedding an electrically conductive material into a plurality of trenches via gate insulating films, the plurality of trenches being formed such that bottoms of the trenches reach the first base layer; source layers of the first conductive type which are formed on a surface area of the second base layer so as to be adjacent to both side walls of the trench provided with the first gate electrode and one side wall of the trench provided with the second gate electrode, respectively; an emitter layer of the second conductive type which is formed on the second surface; emitter electrodes which are formed on the second base layer and the source layers; a collector electrode which is formed on the emitter layer; and first and second terminals which are electrically connected to the first and second gate electrodes, respectively.
摘要:
A plurality of first green sheets forming first ceramic layers after firing are stacked to form a first pre-fired substrate 4. Next, a plurality of second green sheets forming second ceramic layers after firing are stacked to form a second pre-fired substrate. Next, the first pre-fired substrate 4 is formed with recesses 10. Next, first pre-fired blocks 6 of sizes fitting into the recesses are formed from the second pre-fired substrate. The first pre-fired blocks 6 are fit into the recesses 10 so that the stacking direction A of the first green sheets and the stacking direction A′ of the second green sheets become the same. The first pre-fired substrate 4 in which the first pre-fired blocks 6 are fit is fired.
摘要:
The present invention provides a substrate holding method capable of contributing to improvement in performance of an electronic part. A plastic film is adhered to a holding frame by using an adhesive tape having a proper gas releasing characteristic such that total quantity of gas detected when analysis using gas chromatograph mass spectrometry (dynamic HS-GC-MS) is conducted under test conditions of 180° C. and 10 minutes is 100.5 μg/g or less in n-tetradecane. In the case where the plastic film held by the holding frame is subjected to a process of manufacturing an electronic part (for example, a solar battery), even when a process accompanying generation of heat during the manufacturing process (for example, a film forming process such as plasma CVD) is performed on the plastic film, a release amount of unnecessary gas released from the adhesive tape due to the influence of the heat is suppressed, so that deterioration in the performance of the electronic part caused by the unnecessary gas is suppressed.
摘要:
In a trench MOS gate structure of a semiconductor device where trenches (T) are located between an n-type base layer (1) and an n-type source layer (3), a p-type channel layer (12) is formed adjacent to side walls of the trenches, having an even concentration distribution along a depthwise dimension of the trenches. The p-type channel layer enables saturation current to decrease without a raise of ON-resistance of the device, and resultantly a durability against short-circuit can be enhanced. The n-type source layer formed adjacent to the side walls of the trench also further enhances the durability against short-circuit. Providing contacts of the emitter electrode (7) with the n-type source layer at the side walls of the trenches permits a miniaturization of the device and a reduction of the ON-resistance as well.
摘要:
In a method of manufacturing a trench-MOS gate structure device, trenches for contact and n-type source layers are alternately formed in a region situated between parallel trench-MOS gates. Thereby, scale down of the device is possible without requiring mask alignment.
摘要:
An overcoating inorganic composition is applied to a ceramic substrate for forming an overcoat thereon which has improved flexural strength, matches in thermal expansion with the substrate, and is reliable in that it is free of a crack and causes no variation in the resistance of thick film resistors even under rigorous service conditions. The overcoating inorganic composition contains 70-90% by volume of an inorganic glass component and 10-30% by volume of mullite powder and has a coefficient of thermal expansion in the range of from 50.times.10.sup.-7 to 75.times.10.sup.7 /.degree. C.
摘要:
Low thermally expansive, electroconductive composite sintered ceramics comprised of a phase of at least one ceramics selected from the group consisting of low thermally expansive ceramics and negatively thermally expansive ceramics, having dispersed thereinto substantially in a continuous state a phase of an electroconductive substance such as a metal.