Toyota Jidosha Kabushiki Kaisha

Yasuyoshi Saito

Shinichi Miura

Yuji Nishibe

Tadafumi Yoshida

Kensuke Wada

Yasuhide Yagyu

Yoshinobu Murakami

Tomohiro Kawashima

Yasuyuki Kageyama

Masayuki Nagao

A semiconductor device includes: at least one power semiconductor element; a sealing resin disposed so as to seal the power semiconductor element; and a plurality of electrical terminals each electrically connected to the power semiconductor element and each including a protrusion protruding from a surface of the sealing resin. The protrusion includes a first part that is provided on a side of the sealing resin in a protrusion direction of the protrusion and of which a cross-section intersecting the protrusion direction has one of a circular shape and an oval shape.

Semiconductor device and power converter

In a converter circuit of an electric power conversion device, an adjustment portion divides a voltage of a battery input to a semiconductor module, by a first capacity element and a second capacity element that are connected in series to each other. Then, a middle point between the first capacity element and the second capacity element is connected to a cooler to fix a potential thereof. The electric power conversion device can ensure that a waveform of a surge voltage that is generated on a creepage surface between a lead frame terminal and the cooler has a negative voltage range (a range where an offset voltage is applied).

Electric power conversion device for providing a stabilized potential to a cooler

Growing community of inventors

Nagakute, Japan

Yasuyoshi Saito