Power module for supporting high current densities
First Claim
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1. A power module comprisinga housing with an interior chamber;
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Abstract
A power module is disclosed that includes a housing with an interior chamber wherein multiple switch modules are mounted within the interior chamber. The switch modules comprise multiple transistors and diodes that are interconnected to facilitate switching power to a load. In one embodiment, at least one of the switch modules supports a current density of at least 10 amperes per cm2.
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Citations
39 Claims
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1. A power module comprising
a housing with an interior chamber; - and
a plurality of switch modules mounted within the interior chamber and comprising a plurality of transistors and a plurality of diodes interconnected to facilitate switching power to a load wherein at least one of the plurality of switch modules supports a current density of at least 10 amperes per cm2 and handles a voltage greater than 10 kV. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A power module comprising
a housing with an interior chamber; -
a plurality of switch modules mounted within the interior chamber and comprising a plurality of transistors and a plurality of diodes interconnected to facilitate switching power to a load wherein at least one of the plurality of transistors comprises; a drift layer having a first conductivity type; a well region in the drift layer having a second conductivity type opposite the first conductivity type; a source region in the well region, the source region having the first conductivity type and defining a channel region in the well region, wherein the source region comprises a lateral source region adjacent the channel region and a plurality of source contact regions extending away from the lateral source region opposite the channel region; a body contact region having the second conductivity type between at least two of the plurality of source contact regions and in contact with the well region, wherein the body contact region comprises a plurality of body contact regions that are interspersed between the plurality of source contact regions; and a source ohmic contact that overlaps at least one of the source contact regions and the body contact region, and that does not overlap the lateral source region. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification