Abstract: A semiconductor device includes: an insulated gate electrode structure provided in a semiconductor substrate; a base region; a first main electrode region; a contact plug buried in a trench penetrating the first main electrode region to reach the base region with a barrier metal film interposed; an interlayer insulating film provided with a contact hole integrally connected to the trench; a contact region provided in contact with a bottom of the trench; and a second main electrode region, wherein an opening width at a lower end of the contact hole conforms to a width at an opening of the trench, an upper part of a side wall continued from the opening of the trench has a curved surface convex to an outside, and a lower part of the side wall continuously connected to the bottom of the trench has a curved surface convex to the outside.

Abstract: Provided is a semiconductor device including: a drift region of a first conductivity type provided in a semiconductor substrate; a base region of a second conductivity type provided above the drift region; an emitter region of a first conductivity type provided above the base region; a second conductivity type region provided above the drift region; a plurality of trench portions extending in a predetermined extending direction; and an interlayer dielectric film provided above the semiconductor substrate and includes a first contact hole portion and second contact hole portion, in which the second conductivity type region and the emitter region are provided alternately in the extending direction, the first contact hole portion is provided alternately with the second contact hole portion in the extending direction, and a lower end of the first contact hole portion is provided at a different depth from a lower end of the second contact hole portion.

Abstract: A first semiconductor region of a second conductivity type, a second semiconductor region of a first conductivity type, gate trenches, a gate insulating film, gate electrodes, and an interlayer insulating film are formed. Next, a contact hole that penetrates through the interlayer insulating film and reaches the first semiconductor region is formed, and in a surface layer of the first semiconductor region exposed at a bottom of the contact hole, a third semiconductor region of the second conductivity type is formed by an ion implantation using, as a mask, a polymer formed herewith; and after the ion implantation, the polymer is removed. Next, a fourth semiconductor region of the second conductivity type, a first electrode, and a second electrode are formed.

Abstract: A health care system is provided for analyzing a user's health on the basis of a large amount of health information and informing him or her of the danger of life style (related) disease. The system includes a health care center terminal connected via a network to a user terminal. The system also includes an analytic server connected to the health care center terminal. The health care center terminal has a diagnostic form display function for displaying on the user terminal a diagnostic form, in which the user can enter predetermined health information. The health care center terminal also has a health information reception function for receiving the information entered in the diagnostic form. The health care center terminal further has a health information transmission function for transmitting the received information to the analytic server. The analytic server has a health information database.

Abstract: A home delivery system to which this invention is applicable is comprising a sender terminal unit, a receiver terminal unit, and a distribution center unit connected to the sender terminal unit and the receiver terminal unit through a network. The distribution center unit receives from the sender terminal unit a request specification information for requesting to deliver a package, picks up from the request specification information a sender identity information of a sender end, and generates by referring to the sender identity information a collecting direction information for directing a distribution center to pick up the package.

Abstract: In the home medical examination system, a medical center terminal receives home medical examination request information from a user terminal and a doctor creates a medical examination chart through interactive communication with the user terminal based on the home medical examination request information. The medical center terminal transmits medical examination chart information to a pharmacy terminal and the user terminal through the Internet. The pharmacy terminal compounds a medicine based on prescription information in the medical examination chart information from the medical center terminal and prepares medical equipment and delivers them to a sick person. The pharmacy terminal transmits medicine delivery information to the user terminal and the medical center terminal through the Internet.