Abstract: An image forming apparatus includes an apparatus main body that includes an image formation unit forming an image on a recording material, a fixation unit that includes a fixing unit fixing the image formed by the image formation unit onto the recording material and that is attachable to and detachable from the apparatus main body, a first duct that is attached to the fixation unit to face the fixing unit and through which a gas that cools the fixing unit flows, and a second duct that is attached to the apparatus main body to be adjacent to the first duct and through which a gas that cools the fixing unit flows.

Abstract: A powder conveying device includes a first conveying component through which gas containing powder is to be conveyed; a second conveying component to which a downstream end of the first conveying component is connected and through which the gas received from the first conveying component is to be conveyed, the second conveying component extending in a second gas conveying direction that intersects a first gas conveying direction defined by the first conveying component; a third conveying component extending from the second conveying component and through which the gas received from the second conveying component is to be conveyed, the third conveying component extending in a third gas conveying direction that intersects the second gas conveying direction; a fourth conveying component to which a downstream end of the third conveying component is connected and through which the gas received from the third conveying component is to be conveyed, the fourth conveying component extending in a fourth gas conveying d

Abstract: A developing device includes: a container that contains developer; a developer holder that rotates with the developer being held on a surface thereof to transport the developer to a developing region; and a cooling unit. An introduction port is provided at a position corresponding to the developing region, the introduction port allowing suction of a floating substance generated in the developing region in a transverse direction of the container. The cooling unit is connected to the introduction port to allow passage of gas containing the floating substance in a longitudinal direction of the container, and cools the container with the gas. An intake port is connected to an end of the cooling unit in the longitudinal direction, the intake port allowing introduction of gas.

Abstract: An image forming apparatus, for forming an image with a fixing unit that fixes a toner image to a recording material and with a first transport path, includes: a first guide unit that guides one side of a recording material discharged from the fixing unit and transported through the first transport path; a second guide unit that guides the other side of the recording material transported thorough the first transport path; a blowing part through which gas is sent to the one side of the recording material transported through the first transport path; and a gas guiding part that faces the second guide unit with the first transport path interposed between the gas guiding part and the second guide unit and that guides, in a direction away from the first transport path, gas that is sent from the blowing part and whose traveling direction is changed by a recording material.

Abstract: An image forming apparatus includes: an image forming section that forms, with a developer containing toner, a toner image on a recording material; a fixing unit that fixes a toner image formed at the image forming section to a recording material; a recovery unit that recovers waste powder containing toner discharged from the image forming section; and a gas circulation unit in which gas for cooling the vicinity of the image forming section or the vicinity of the fixing unit circulates and that has a portion disposed between the recovery unit and the fixing unit.

Abstract: An image forming apparatus includes an apparatus main body that includes an image formation unit forming an image on a recording material, a fixation unit that includes a fixing unit fixing the image formed by the image formation unit onto the recording material and that is attachable to and detachable from the apparatus main body, a first duct that is attached to the fixation unit to face the fixing unit and through which a gas that cools the fixing unit flows, and a second duct that is attached to the apparatus main body to be adjacent to the first duct and through which a gas that cools the fixing unit flows.

Abstract: An image forming apparatus includes: an image forming section that forms, with a developer containing toner, a toner image on a recording material; a fixing unit that fixes a toner image formed at the image forming section to a recording material; a recovery unit that recovers waste powder containing toner discharged from the image forming section; and a gas circulation unit in which gas for cooling the vicinity of the image forming section or the vicinity of the fixing unit circulates and that has a portion disposed between the recovery unit and the fixing unit.

Abstract: An image forming apparatus, for forming an image with a fixing unit that fixes a toner image to a recording material and with a first transport path, includes: a first guide unit that guides one side of a recording material discharged from the fixing unit and transported through the first transport path; a second guide unit that guides the other side of the recording material transported thorough the first transport path; a blowing part through which gas is sent to the one side of the recording material transported through the first transport path; and a gas guiding part that faces the second guide unit with the first transport path interposed between the gas guiding part and the second guide unit and that guides, in a direction away from the first transport path, gas that is sent from the blowing part and whose traveling direction is changed by a recording material.

Abstract: A semiconductor device includes a nitride semiconductor laminated structure formed on a substrate, a source electrode formed on the nitride semiconductor laminated structure, a drain electrode and a gate electrode, and a surface protection film covering the nitride semiconductor laminated structure. the nitride semiconductor laminated structure includes: a first nitride semiconductor layer formed on the substrate; and a second nitride semiconductor layer formed on the first nitride semiconductor layer and having a composition different from the first nitride semiconductor layer. The surface protection film includes: a first insulating film formed to have contact with the gate electrode; and a second insulating film formed adjacent to the first insulating film and having a higher carbon concentration than the first insulating film.

Abstract: A semiconductor device includes a diamond substrate made of diamond, and a nitride semiconductor layer formed in a recess formed at an upper surface of the diamond substrate. The semiconductor device further includes at least one of: (A) the nitride semiconductor layer formed to be surrounded entirely by the upper surface of the diamond substrate in a plan view; (B) the diamond substrate in which the upper surface of the diamond substrate and an upper surface of the nitride semiconductor layer are located on the same plane; and (C) the diamond substrate having electrical insulating properties.

Abstract: It is an object of the present invention to provide a semiconductor device having high heat dissipation performance. A semiconductor device includes: a diamond substrate having a recess in an upper surface thereof; a nitride semiconductor layer disposed within the recess in the upper surface of the diamond substrate; and an electrode disposed on the nitride semiconductor layer, wherein the nitride semiconductor layer and the electrode constitute a field-effect transistor, the diamond substrate has a source via hole extending through a thickness of the diamond substrate to expose the source electrode, and the semiconductor device further includes a via metal covering an inner wall of the source via hole and a lower surface of the diamond substrate.

Abstract: Provided is a technology for obtaining a drain current of a sufficient magnitude in a field effect transistor using a nitride semiconductor. A channel layer that is Alx1Iny1Ga1-x1-y1N is formed on an upper surface of a semiconductor substrate, and on an upper surface of the channel layer, a barrier layer that is Alx2Iny2Ga1-x2-y2N having a band gap larger than that of the channel layer is formed. Then, on an upper surface of the barrier layer, a gate insulating film that is an insulator or a semiconductor and has a band gap larger than that of the barrier layer is at least partially formed, and a gate electrode is formed on an upper surface of the gate insulating film. Then, heat treatment is performed while a positive voltage is applied to the gate electrode.

Abstract: The semiconductor manufacturing device includes: a lower substrate support base configured to support a diamond substrate; an upper substrate support base configured to support a semiconductor substrate; a support base drive unit configured to move the lower substrate support base and the upper substrate support base to bring the diamond substrate and the semiconductor substrate into close contact with each other under a state in which a pressure is applied to the diamond substrate and the semiconductor substrate in a thickness direction; and a second mechanism configured to deform a surface of the upper substrate support base opposed to the lower substrate support base so that a surface of the semiconductor substrate opposed to the diamond substrate forms a parallel surface or a parallel plane with respect to a surface of the diamond substrate opposed to the semiconductor substrate.

Abstract: A technique disclosed in this description relates to a semiconductor device and a method of manufacturing the semiconductor device, and is intended to provide a semiconductor device having high heat dissipation performance. The semiconductor device relating to the technique disclosed in this description includes a diamond substrate and a nitride semiconductor layer. The diamond substrate is made of diamond. The nitride semiconductor layer is formed in a recess formed at an upper surface of the diamond substrate.

Abstract: Provided is a technology for obtaining a drain current of a sufficient magnitude in a field effect transistor using a nitride semiconductor. A channel layer that is Alx1Iny1Ga1-x1-y1N is formed on an upper surface of a semiconductor substrate, and on an upper surface of the channel layer, a barrier layer that is Alx2Iny2Ga1-x2-y2N having a band gap larger than that of the channel layer is formed. Then, on an upper surface of the barrier layer, a gate insulating film that is an insulator or a semiconductor and has a band gap larger than that of the barrier layer is at least partially formed, and a gate electrode is formed on an upper surface of the gate insulating film. Then, heat treatment is performed while a positive voltage is applied to the gate electrode.

Abstract: The semiconductor manufacturing device includes: a lower substrate support base configured to support a diamond substrate; an upper substrate support base configured to support a semiconductor substrate; a support base drive unit configured to move the lower substrate support base and the upper substrate support base to bring the diamond substrate and the semiconductor substrate into close contact with each other under a state in which a pressure is applied to the diamond substrate and the semiconductor substrate in a thickness direction; and a second mechanism configured to deform a surface of the upper substrate support base opposed to the lower substrate support base so that a surface of the semiconductor substrate opposed to the diamond substrate forms a parallel surface or a parallel plane with respect to a surface of the diamond substrate opposed to the semiconductor substrate.

Abstract: A sealing member sealing a gap between one member and another member includes a mounting portion that is mounted on the one member and an extension portion that extends from a mounting portion side to another member side and contacts with the other member. In the sealing member, the extension portion includes an assist portion that is formed in one end toward the other member side and assists spring-up of the extension portion in accordance with sliding of the other member or the one member.

Abstract: A sealing member sealing a gap between one member and another member includes a mounting portion that is mounted on the one member and an extension portion that extends from a mounting portion side to another member side and contacts with the other member. In the sealing member, the extension portion includes an assist portion that is formed in one end toward the other member side and assists spring-up of the extension portion in accordance with sliding of the other member or the one member.

Abstract: An image forming apparatus includes plural medium transport paths that branch at a predetermined branching position and along which a medium is transported in a curved state; a switching member disposed at the branching position and including a guide surface that allows the medium to be transported along one of the medium transport paths, the switching member switching between the medium transport paths; an output unit that outputs the medium toward a stacking portion, on which the medium is to be stacked, while corrugating the medium; and a guide portion that guides the medium from the branching position toward the output unit in a region in which the medium is corrugated.

Abstract: An image forming apparatus includes plural medium transport paths that branch at a predetermined branching position and along which a medium is transported in a curved state; a switching member disposed at the branching position and including a guide surface that allows the medium to be transported along one of the medium transport paths, the switching member switching between the medium transport paths; an output unit that outputs the medium toward a stacking portion, on which the medium is to be stacked, while corrugating the medium; and a guide portion that guides the medium from the branching position toward the output unit in a region in which the medium is corrugated.