摘要:
A semiconductor device comprising: a first-conductivity-type base layer; a second-conductivity-type emitter layer formed on a first main surface of said first-conductivity-type base layer; a collector electrode formed in contact with a surface of said second-conductivity-type emitter layer; a second-conductivity-type base layer formed on a second main surface of said first-conductivity-type base layer; a plurality of trenches which extend through said second-conductivity-type base layer to reach a predetermined depth of said first-conductivity-type base layer, and has a longitudinal direction in one direction; a gate electrode formed in said trench via a gate insulating film; a first-conductivity-type emitter layer selectively formed in contact with side walls of said trench, in a surface portion of said second-conductivity-type base layer; an emitter electrode formed in contact with a surface of said second-conductivity-type base layer and a surface of said first-conductivity-type emitter layer; and a second-conductivity-type semiconductor layer selectively formed in a region along the longitudinal direction of said trench, near the surface of said first-conductivity-type emitter layer.
摘要:
A semiconductor device comprises a first base layer of a first conductivity type; a plurality of second base layers of a second conductivity type, provided on a part of a first surface of the first base layer; trenches formed on each side of the second base layers, and formed to be deeper than the second base layers; an emitter layer formed along the trench on a surface of the second base layers; a collector layer of the second conductivity type, provided on a second surface of the first base layer opposite to the first surface; an insulating film formed on an inner wall of the trench, the insulating film being thicker on a bottom of the trench than on a side surface of the trench; a gate electrode formed within the trench, and isolated from the second base layers and the emitter layer by the insulating film; and a space section provided between the second base layers adjacent to each other, the space section being deeper than the second base layers and being electrically isolated from the emitter layer and the second base layers.
摘要:
In a photoelectric converting film stack type solid-state image pickup device, a plurality of photoelectric converting film are stacked on a semiconductor substrate in which a signal readout circuit is formed, each of the photoelectric converting films is sandwiched between a common electrode film and pixel electrode films corresponding to respective pixels, and photo-charges generated in the photoelectric converting films are taken out through the pixel electrode films. In the solid-state image pickup device, a common electrode film for a first photoelectric converting film is used also as a common electrode film for a second photoelectric converting film, the first photoelectric converting film is stacked below the common electrode film, and the second photoelectric converting film is stacked above the common electrode film.
摘要:
A vertical semiconductor device including a first conductivity type base layer having resistance higher then of a first conductivity type buffer layer, the first conductivity type buffer layer formed in one surface portion of the first conductivity type base layer, a second conductivity type drain layer selectively formed in a surface portion of the first conductivity type buffer layer, a second conductivity type base layer selectively formed in the other surface portion of the first conductivity type base layer, a first conductivity type source layer selectively formed in a surface portion of the second conductivity type base layer, a gate insulating film formed on the second conductivity type base layer between the first conductivity type source layer and the first conductivity type base layer, a gate electrode formed on the second conductivity type base layer via the gate insulating film, a drain electrode electrically connected to the second conductivity type drain layer, and a source electrode electrically connected to the first conductivity type source layer and the second conductivity type base layer, wherein the drain electrode is not electrically connected to the first conductivity buffer layer.
摘要:
A semiconductor device includes: a base layer of a first conductivity type, a barrier layer of a first conductivity type formed on the base layer, a well layer of a second conductivity type formed on the barrier layer; a trench formed from the surface of the well layer to such a depth as to reach a region in the vicinity of a junction surface between the barrier layer and the base layer, a gate electrode formed in the trench via a gate insulating film, a contact layer of the second conductivity type selectively formed in a surface portion of the well layer, a source layer of the first conductivity type selectively formed in the surface portion of the well layer so as to contact a side wall of the gate insulating film in the trench and the contact layer, and a first main electrode formed so as to contact the contact layer and the source layer, wherein assuming that a total sum of impurity densities in the region of the barrier layer between the trenches is Qn, the Qn has a relation of the following equation: Qn≧2×1012 cm−2.
摘要:
The present invention is a bracket for a fluid transport tube including an elongated bracket body having a length in a longitudinal direction, a tube clamp for holding the fluid transport tube in a direction transverse to the longitudinal direction, a mounting component for securing the bracket body and tube clamp to the side of a car wherein the mounting component comprises a bolt passage hole for passing a bolt having a bolt head through the passage hole to secure the mounting component to the side of the car and a vibration-absorbing bushing 9 made of a rubber-like resilient material with an annular fitting groove 15 in the middle of its outer circumference in the thickness direction thereof fitted to the mounting component 5 in such a manner to clamp part of said bushing between the bolt head and said mounting component, and another part of said bushing between said mounting component and the car body.
摘要:
A connector cover for providing a water shield between a connector and a pipe comprises two cover elements. The cover elements are joined each other to construct a tubular water shield, which internally has a connector receiving portion on one axial side thereof for receiving a pipe inserting portion of a connector, and a pipe receiving portion on an opposite axial side thereof for receiving a pipe. The pipe receiving portion has a pipe receiving section on an opposite axial side thereof for receiving an opposite axial side from an annular projection of the pipe, and a projection receiving section on one axial side thereof for receiving annular projection. An inner diameter of the pipe receiving section is designed generally identical to an outer diameter of the pipe.
摘要:
A lateral semiconductor device includes an n-type buffer layer (15) selectively formed in the surface of an n-type base layer (14), a p-type drain layer (16) selectively formed in the surface of the n-type buffer layer (15), a p-type base layer (17) formed in the surface of the n-type base layer (14) so as to surround the n-type buffer layer (15), an n+-type source layer (18) selectively formed in the surface of the p-type base layer (17), a source electrode (24) in contact with the p-type base layer (17) and the n+-type source layer (18), a drain electrode (22) in contact with the p-type drain layer (16), and a gate electrode (20) formed via a gate insulating film (19) on the surface of the p-type base layer (17) sandwiched between the n+-type source layer (18) and the n-type base layer (14). The p-type drain layer (16) has an annular structure or horseshoe-shaped structure, or is divided into a plurality of portions. This realizes a high breakdown voltage with a low ON voltage.
摘要:
An apparatus for supporting development of information processing systems where a plurality of computers are incorporated. A project data entry unit provides functions for entering various information descriptive of project specifications including information on a plurality of applications and data resources to be integrated into the target information processing system. An application property analyzing unit analyzes properties of each application, thus creating an application property table. Likewise, a data property analyzing unit analyzes properties of each data resource, thus creating a data property table. Consulting those two tables, a system pattern searching unit produces some search parameters. A system pattern database is prepared beforehand for storing a variety of system patterns associated with different search parameters. The system pattern searching unit searches this system pattern database for system patterns that correspond to the search parameters produced above, thus extracting a plurality of system patterns. A system pattern combination unit then combines the system patterns extracted by the system pattern searching unit to propose an optimum system configuration.