Power module
First Claim
1. A power module comprising:
- a heat sink;
a first power semiconductor device disposed directly on said heat sink; and
a capacitor disposed directly on said heat sink.
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Accused Products
Abstract
In a power module (111), a free-wheeling diode (1A), an IGBT (1B), and a capacitor (20) for smoothing direct current are disposed directly on a surface (2BS) of a conductive heat sink (2B) with through holes (2BH). The rear electrodes of the freewheeling diode (1A), the IGBT (1B), and the capacitor (20) are bonded to the heat sink (2B) for example with solder, whereby the diode (1A), the IGBT (1B), and the capacitor (20) are electrically connected with the heat sink (2B). The front electrodes of the diode (1A), the IGBT (1B), and the capacitor (20) are connected with each other for example by wires (7). In the heat sink (2B), a cooling medium flows through the through holes (2BH). Such a configuration allows miniaturization of the power module and improves the cooling performance and reliability of the power module.
44 Citations
18 Claims
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1. A power module comprising:
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a heat sink;
a first power semiconductor device disposed directly on said heat sink; and
a capacitor disposed directly on said heat sink. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 12, 14)
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9. A power module comprising:
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a capacitor; and
a first semiconductor device disposed directly on an electrode of said capacitor. - View Dependent Claims (10, 11, 13, 15, 16, 18)
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17. A power module comprising:
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a plurality of heat sinks each having a passage of a cooling medium;
a plurality of power semiconductor devices disposed on said heat sinks; and
a casing having space and being capable of housing said plurality of heat sinks, wherein said plurality of heat sinks are arranged within said space of said casing, leaving a clearance therebetween, whereby continuous space including said clearance and said passages is formed within said space of said casing.
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Specification