Switch module and inverter
AssigneeDenso Corporation
InventorYasushi FURUKAWA
Life of this patent
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Abstract
An electric apparatus includes: a first stacked body in which a first semiconductor chip having a first switch is stacked on a first mounting portion; a second stacked body in which a second semiconductor chip having a second switch is stacked on a second mounting portion; a temperature sensor provided in the first stacked body to detect a temperature of the first switch; and a current sensor provided in the second stacked body to detect a current flowing through the second switch. The second stacked body has a heat dissipation property higher than that of the first stacked body.
Claims13
A switch module comprising:
- a first stacked body in which a first semiconductor chip having a first switch is stacked on a first mounting portion;
- a second stacked body in which a second semiconductor chip having a second switch is stacked on a second mounting portion, an on-resistance of the second switch being lower than an on-resistance of the first switch;
- a current sensor provided in the second stacked body to detect a current flowing through the second switch;
- a signal terminal connected to the first switch and the second switch;
- and
- a coating resin that coats the first stacked body, the second stacked body, and the signal terminal, to expose a portion of the signal terminal, wherein the signal terminal includes a current sensor terminal to which the current sensor is connected, and includes no terminal to detect a current flowing through the first switch.
A switch module comprising:
- a first stacked body in which a first semiconductor chip having a first switch is stacked on a first mounting portion;
- a second stacked body in which a second semiconductor chip having a second switch is stacked on a second mounting portion, an on-resistance of the second switch being lower than an on-resistance of the first switch;
- a temperature sensor provided in the first stacked body to detect a temperature of the first switch;
- a current sensor provided in the second stacked body to detect a current flowing through the second switch;
- a signal terminal connected to the first switch and the second switch;
- and
- a coating resin that coats the first stacked body, the second stacked body, and the signal terminal, to expose a portion of the signal terminal, wherein the signal terminal includes
- a terminal to which the temperature sensor is connected, and
- a current sensor terminal to which the current sensor is connected, and
- the signal terminal includes no terminal to detect a temperature of the second switch and no terminal to detect a current flowing through the first switch.
Dependencies are inferred from the claim text.