Mitsubishi Electric Corporation

Masaomi Miyazawa

Tetsuo Yamashita

Tomohiro Hieda

Takuya Takahashi

Mituharu Tabata

Yoshitaka Otsubo

Satoshi Miyahara

A semiconductor device includes a first bus bar, a second bus bar, a first terminal, and a second terminal. The first terminal includes one or more planar portions, and the second terminal includes one or more planar portions. The one or more planar portions of the first terminal and the one or more planar portions of the second terminal are arranged parallel to and opposite each other. One of the first bus bar and the second bus bar covers a gap between a portion of the first terminal connected to the first bus bar and a portion of the second terminal connected to the second bus bar in plan view.

Semiconductor device

According to the present disclosure, a semiconductor device includes a semiconductor chip, a frame, a projection projecting from the frame, a lead in which a projection insertion portion into which the projection is to be inserted is formed, and which directly contacts the frame to electrically connect the semiconductor chip to the frame and a first bonding material configured to bond the projection to the lead.

Semiconductor device having lead connecting a semiconductor chip to a frame and projection extending from frame and a method of manufacturing semiconductor device

According to the present invention, a semiconductor device includes a substrate having a metallic pattern formed on a top surface of the substrate, a semiconductor chip provided on the metallic pattern, a back surface electrode terminal in flat plate form connected to the metallic pattern with a wire, a front surface electrode terminal in flat plate form, the front surface electrode terminal being in parallel to the back surface electrode terminal above the back surface electrode terminal, extending immediately above the semiconductor chip, and being directly joined to a top surface of the semiconductor chip, a case surrounding the substrate and a seal material for sealing an inside of the case.

Method of manufacturing a semiconductor device

Semiconductor device and method of manufacturing the semiconductor device

A semiconductor device includes a semiconductor element and a ceramic circuit substrate on which the semiconductor element is mounted. The ceramic circuit substrate includes a ceramic substrate having one surface and the other surface facing each other, a metal circuit board joined to the one surface of the ceramic substrate and electrically connected to the semiconductor element, and a metal heat-dissipation plate joined to the other surface of the ceramic substrate. The metal circuit board is greater in thickness than the metal heat-dissipation plate. A surface of the metal heat-dissipation plate on a side opposite to the ceramic substrate is larger in area than a surface of the metal circuit board on a side opposite to the ceramic substrate. Thereby, a semiconductor device capable of suppressing warpage of the ceramic substrate can be achieved.

An electrode includes an extending portion extending such that both ends thereof get into a first recessed portion and a second recessed portion provided in a first inner wall and a second inner wall, respectively, facing each other in a lateral direction of a case. The extent to which both the ends of the extending portion get into is set such that positions of both the ends thereof in a case where both the ends are narrowed toward a midpoint therebetween to reduce a length of the extending portion to 70% of the length of the extending portion exist between positions of the first and second inner walls in a case where the first and second inner walls are each narrowed toward a midpoint therebetween by 10% of the distance between the first and second inner walls.

Semiconductor device having laterally-extending electrode with reduced inductance

A semiconductor cooling device includes: a cooling medium flow channel, through which a cooling medium for cooling a semiconductor chip flows; a laminar flow section which is provided in a region upstream of the cooling medium flow channel and allows the cooling medium to flow in the form of laminar flow; and a turbulent flow section which is provided in a region downstream of the laminar flow section in the cooling medium flow channel and allows the cooling medium, which flows in the form of laminar flow from the laminar flow section, to flow in the form of turbulent flow.

Growing community of inventors

Tokyo, Japan

Masaomi Miyazawa