Toyota Jidosha Kabushiki Kaisha

Norimune Orimoto

Makoto Imai

Takahide Sugiyama

Hiroshi Osada

Satoshi Hirose

Masanori Usui

Tomoyuki Shoji

A semiconductor device may include a semiconductor element; a temperature detecting element provided at a central part of a surface of the semiconductor element, and a heat conductor jointed to the surface of the semiconductor element via a jointing element. The jointing element may include a central part positioned over the temperature detecting element, and a peripheral part positioned on a periphery of the central part of the jointing element. The heat conductor may include a metal part being in contact with the central part of the jointing element, and a graphite part being in contact with the peripheral part of the jointing element.

Semiconductor device

A semiconductor device includes a semiconductor module and a cooler. The semiconductor device includes semiconductor element(s) within a molded resin and a heat sink plate exposed on the molded resin. The cooler includes a cooling plate located on the heat sink plate of the semiconductor module via thermal grease. The cooling plate includes a bimetal structure in which two layers having different linear expansion coefficients are laminated. The heat sink plate includes a first facing surface facing the cooling plate and the semiconductor module is configured to thermally expand such that the first facing surface displaces with respect to the cooling plate. The cooling plate includes a second facing surface facing the heat sink plate, and the bimetal structure is configured to thermally expand such that the second facing surface of the cooling plate displaces in a same direction as the first facing surface of the heat sink plate.

A semiconductor device, including: an intermediate plate; a semiconductor element connected to one of surfaces of the intermediate plate by a brazing filler metal; a main plate connected to the other one of the surfaces of the intermediate plate by a brazing filler metal; and a resin layer, the intermediate plate having an external region extending to an outer side with respect to a region in which the intermediate plate is connected to the brazing filler metal, a first through-hole extending through the intermediate plate in the external region, the resin layer covering at least the brazing filler metal, the intermediate plate and a surface of the main plate in which the main plate faces the intermediate plate, the resin layer being also arranged inside the first through-hole.

Semiconductor device having semiconductor elements connected to an intermediate plate by a brazing filler metal, and manufacturing method for semiconductor device

A semiconductor device includes a semiconductor element having a rectangular shape in a plan view, and a fixed member to which the semiconductor element is fixed. The semiconductor element is disposed so that a rectangular face of the semiconductor element is faced toward a surface of the fixed member. A part of the rectangular face of the semiconductor element is fixed to the surface of the fixed member. At least corner parts of the rectangular face of the semiconductor element are not fixed to the surface of the fixed member.

Semiconductor device including a semiconductor element and a fixed member to which the semiconductor element is fixed

A semiconductor deviceincludes a thermal radiation member; a first semiconductor chipconnected to the thermal radiation member; a second semiconductor chipconnected to the thermal radiation member; and sealing resinsealing the first semiconductor chipand the second semiconductor chip. The semiconductor devicecomprises a first thermal diffusion memberconnected to the thermal radiation member; a second thermal diffusion memberconnected to the thermal radiation member; and a coolerconfigured to cool the first thermal diffusion memberand the second thermal diffusion member. A space between the first thermal diffusion memberand the second thermal diffusion memberis positioned to oppose a space between the first semiconductor chipand the second semiconductor chipvia the thermal radiation member

A cooling type switching element module includes an outer conductor pipe, an inner conductor pipe that transmits electric power in conjunction with the outer conductor pipe, and first and second switching elements. The first switching elements are provided on outer surfaces of the outer conductor pipe, and the second switching elements are provided on outer surfaces of a projecting portion of the inner conductor pipe. A coolant flows within the inner conductor pipe, and outside the outer conductor pipe. The first and second switching elements are cooled from both sides by the coolant flowing within the inner conductor pipe, and by the coolant flowing outside the outer conductor pipe. By employing the above-described structure, it is possible to provide a switching element module having a cooling function, in which improved cooling performance, improved electrical performance, and downsizing are achieved.

Cooling-type switching element module

A semiconductor module includes a semiconductor having a semiconductor substrate, a first electrode formed on one surface of the semiconductor substrate, and a second electrode formed on an opposite surface of the semiconductor substrate. A first conductive member is in contact with the first electrode. A second conductive member is in contact with the second electrode. A third conductive member is in contact with the second conductive member and extends along the first conductive member. An insulating member provides insulation between the first conductive member and the third conductive member. The third conductive member is fixed to the first conductive member and the second conductive member by being sandwiched between the first conductive member and the second conductive member. The semiconductor device is fixed to the first conductive member and the second conductive member by being sandwiched between the first conductive member and the second conductive member.

Semiconductor module

A semiconductor module includes a semiconductor element, a case member, a cylindrical body, a lid member, a bus bar, and an insulating plate. The case member includes a bottom member and an extended portion. Eight protruding portions are formed on an outer peripheral surface of the cylindrical body. Eight recessed portions are formed on an inner surface of a central hole of the bus bar. The cylindrical body is inserted into the central hole of the bus bar. The protruding portions of the cylindrical body are engaged with the recessed portions of the bus bar. A direction in which an extended portion of the bus bar extends is fixed in one direction, from among a plurality of directions in a circumferential direction of the cylindrical body, by engagement of the protruding portions with the recessed portions.

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Toyota, Japan

Norimune Orimoto