Abstract: A Schottky barrier diode includes a semiconductor substrate made of gallium oxide, a drift layer made of gallium oxide and provided on the semiconductor substrate, an anode electrode brought into Schottky contact with the drift layer, and a cathode electrode brought into ohmic contact with the semiconductor substrate. The drift layer has a plurality of trenches formed in a position overlapping the anode electrode in a plan view. Among the plurality of trenches, a trench positioned at the end portion has a selectively increased width. Thus, the curvature radius of the bottom portion of the trench is increased, or an edge part constituted by the bottom portion as viewed in a cross section is divided into two parts. As a result, an electric field to be applied to the bottom portion of the trench positioned at the end portion is mitigated, making dielectric breakdown less likely to occur.

Abstract: An object of the present invention is to provide a Schottky barrier diode less apt to cause dielectric breakdown due to concentration of an electric field. A Schottky barrier diode includes a semiconductor substrate 20 made of gallium oxide, a drift layer 30 made of gallium oxide and provided on the semiconductor substrate 20, an anode electrode 40 brought into Schottky contact with the drift layer 30, and a cathode electrode 50 brought into ohmic contact with the semiconductor substrate 20. The drift layer 30 has an outer peripheral trench 10 that surrounds the anode electrode 40 in a plan view, and the outer peripheral trench 10 is filled with a semiconductor material 11 having a conductivity type opposite to that of the drift layer 30. An electric field is dispersed by the presence of the thus configured outer peripheral trench 10. This alleviates electric field concentration on the corner of the anode electrode 40, making it less apt to cause dielectric breakdown.

Abstract: A die for EFG-based single crystal growth includes a lower surface to be immersed into a raw material melt with an impurity added, a rectangular upper surface facing a seed crystal and having a long side and a short side, and a plurality of slit sections extending from the lower surface to the upper surface and causing the raw material melt to ascend from the lower surface to the upper surface. Respective longitudinal directions of openings of the plurality of slit sections on the upper surface are parallel to one another and non-parallel to the long side of the upper surface.

Abstract: A trench MOS Schottky diode includes a first semiconductor layer including a Ga2O3-based single crystal, a second semiconductor layer that is a layer stacked on the first semiconductor layer, includes a Ga2O3-based single crystal, and includes a trench opened on a surface thereof opposite to the first semiconductor layer, an anode electrode formed on the surface of the second semiconductor layer, a cathode electrode formed on a surface of the first semiconductor layer, an insulating film covering the inner surface of the trench of the second semiconductor layer, and a trench electrode that is buried in the trench of the second semiconductor layer so as to be covered with the insulating film and is in contact with the anode electrode. The second semiconductor layer includes an insulating dry-etching-damaged layer with a thickness of not more than 0.8 ?m in a region including the inner surface of the trench.

Abstract: An object of the present invention is to provide a Schottky barrier diode using gallium oxide capable of suppressing heat generation and enhancing heat radiation performance while ensuring mechanical strength and handling performance. A Schottky barrier diode includes a semiconductor substrate 20 made of gallium oxide having a recessed part 23 on the second surface 22, an epitaxial layer 30 made of gallium oxide and provided on a first surface 21 of the semiconductor substrate 20; an anode electrode 40 provided at a position overlapping the recessed part 23 as viewed in the lamination direction and brought into Schottky contact with the epitaxial layer 30, and a cathode electrode 50 provided in the recessed part 23 of the semiconductor substrate 20 and brought into ohmic contact with the semiconductor substrate 20.

Abstract: An object of the present invention is to provide a Schottky barrier diode which is less likely to cause dielectric breakdown due to concentration of an electric field. A Schottky barrier diode includes a semiconductor substrate 20 made of gallium oxide, a drift layer 30 made of gallium oxide and provided on the semiconductor substrate 20, an anode electrode 40 brought into Schottky contact with the drift layer 30, and a cathode electrode 50 brought into ohmic contact with the semiconductor substrate 20. The drift layer 30 has an outer peripheral trench 10 formed at a position surrounding the anode electrode 40 in a plan view. An electric field is dispersed by the presence of the outer peripheral trench 10 formed in the drift layer 30. This alleviates concentration of the electric field on the corner of the anode electrode 40, making it unlikely to cause dielectric breakdown.

Abstract: An object of the present invention is to provide a Schottky barrier diode using gallium oxide capable of suppressing heat generation and enhancing heat radiation performance while ensuring mechanical strength and handling performance. A Schottky barrier diode includes a semiconductor substrate 20 made of gallium oxide having a recessed part 23 on the second surface 22, an epitaxial layer 30 made of gallium oxide and provided on a first surface 21 of the semiconductor substrate 20; an anode electrode 40 provided at a position overlapping the recessed part 23 as viewed in the lamination direction and brought into Schottky contact with the epitaxial layer 30, and a cathode electrode 50 provided in the recessed part 23 of the semiconductor substrate 20 and brought into ohmic contact with the semiconductor substrate 20.

Abstract: A storage medium having recorded therein a location determination program for causing a computer to execute the following steps: storing detection information including information on a detected object and the date and time on which the object was detected, and location information for that owner; determining a last detection date and time which represents the date and time on which the specified object was last detected based on the detection information; identifying an object that is owned by someone other than the owner of the object from among objects that were detected on the same date and time as the last detection date and time based on the last detection date and time as well as the detection information; and determining the location of the object based on the owner of the object.

Abstract: A systematic problem search unit searches information about a systematic problem that is a common problem to a plurality of projects, using a conditional expression for searching the information about the systematic problem based on one of or a plurality of a count by which the information about the systematic problem is stored in the retrospect storage unit, a count by which a trial improvement plan linked to the systematic problem is stored in the retrospect storage unit, and information indicating whether the stored improvement plan is stored in the retrospect storage unit, as a conditional expression indicating a condition for extracting the information about the systematic problem. a systematic problem output unit outputs a search result in the systematic problem search procedure to each of or one of a predetermined storage unit and a predetermined output unit.

Abstract: In a work-flow process, a work-flow apparatus, and a computer-readable medium storing a work-flow program for delivering work requests to stations in an organization: a station in charge of executing each work request is determined by comparing the work request with work definitions, and the work request is delivered to the station in charge; acceptance or rejection of the work request by the station in charge is recorded in a request-processing history in association with an identifier of the work request; and the number of work requests which have been improperly or indirectly delivered to each station is obtained on the basis of the numbers of work requests which have been rejected by the station. When the number of work requests which have been improperly or indirectly delivered to each station is greater than a predetermined number, the work definition for the station is determined to be corrected.

Abstract: In a display area of a display, a KPT screen in which a theme area, a keep area (Keep), a problem area (Problem), and a try area (Try) are disposed is displayed. When a click of the area is detected, a new generation menu of an article corresponding to the area is displayed so as to enable an editing operation of new generation of an article by menu selection. When a click of an article display which is displayed in a tag image in the problem area is detected, new generation menus of articles of the other areas are displayed in addition to a correction menu and a deletion menu of the specified article, so as to enable new generation of an article of another area, for example, the try area in association with the clicked article display.

Abstract: A policy management program, a policy management apparatus and a policy management method can evaluate policies. A policy management program causes a computer to manage the policies in a project by causing the computer to execute a policy registration step that registers policy information including the contents of policies, a first evaluation step that acquires case information satisfying the predetermined first requirement from the case information including the contents of the utilized policies registered in advance and computationally determines an evaluation value for each of the policies registered in the policy registration step according to the case information and a display step that displays the policy information of the one or more than one policies showing an evaluation value satisfying the predetermined second requirement as computed in the first evaluation step.

Abstract: This invention is to automatically carry out the retracement of the knowledge. Therefore, this method is executed by a computer having a retracement data storage storing a target type of a past project, data concerning a scale of the past project, a specific phase of the past project, data concerning a problem in the specific phase of the past project, and data concerning an action against a problem in the specific phase of the past project.

Abstract: A recording medium causing computer to execute a checklist management program for managing a checklist comprised of a plurality of operation items to be checked, which generates attribute information specifying if the operation item is conducted for each of the operation items, obtains frequency distribution about an evaluation value corresponding to the generated attribute information based on a relationship which is prepared between the attribute information and the evaluation value, and sets an evaluation degree corresponding to the generated attribute information based on a frequency corresponding to an evaluation value that is equal to or greater than a prescribed threshold value in the frequency distribution. The generated attribute information comprises first attribute information obtained by setting t one of the operation items, which are not conducted among input attribute information, to be conducted. An evaluation degree obtained for the first attribute information is set as a priority.

Abstract: A contents reuse management apparatus judges the presence/absence of a reuse relationship among contents stored in a database using a computer, includes a surface information generation unit to generate surface information including a character string appearing in the contents, and a reuse judging unit to judge the reusability using the surface information, and judges the presence/absence of the reuse relationship among the contents based on the matching level of the surface information among the contents.

Abstract: A hypothetical sales database control unit controls a hypothetical sales database obtained by integrating plural databases such as a sales information database and a budget information database. A sales promotion concept control unit obtains concept information from the hypothetical sales database. An account executive view control unit displays the concept information obtained from the sales promotion concept control unit based on the concept information selected by the user from among the concept information related to a concept presented to the user.

Abstract: A pre-processing portion retrieves several alternative program names with the same number of arguments as that of given input/output examples from a reference program cache table. A denotational determining portion successively retrieves alternative programs from a reference program database, supplies received input examples to the alternative programs, and obtains outputs of the programs. Thereafter, the denotational determining portion compares each obtained output with each given output example and determines whether or not each alternative program can be used. The denotational determining portion outputs the program name of the suitable alternative program. Thus, a desired program is automatically retrieved from pre-developed programs with retrieval keys of input/output examples. Consequently, alternative programs can be easily obtained.