Methods for making millichannel substrate, and cooling device and apparatus using the substrate
First Claim
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1. A method for making a cooling device, comprising:
- defining a plurality of millichannels on a first layer;
forming a substrate, comprising;
attaching the first layer having the millichannels to a lower surface of a second layer, andattaching a third layer to an upper surface of the second layer; and
attaching the substrate to a base plate so that the first layer is coupled to the base plate, wherein the base plate is configured to cooperate with the substrate to pass a coolant through the millichannels.
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Abstract
A substrate for power electronics mounted thereon, comprises a middle ceramic layer having a lower surface and an upper surface, an upper metal layer attached to the upper surface of the middle ceramic layer, and a lower metal layer attached to the lower surface of the middle ceramic layer. The lower metal layer has a plurality of millichannels configured to deliver a coolant for cooling the power electronics, wherein the millichannels are formed on the lower metal layer prior to attachment to the lower surface of the middle ceramic layer. Methods for making a cooling device and an apparatus are also presented.
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Citations
14 Claims
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1. A method for making a cooling device, comprising:
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defining a plurality of millichannels on a first layer; forming a substrate, comprising; attaching the first layer having the millichannels to a lower surface of a second layer, and attaching a third layer to an upper surface of the second layer; and attaching the substrate to a base plate so that the first layer is coupled to the base plate, wherein the base plate is configured to cooperate with the substrate to pass a coolant through the millichannels. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for making an apparatus, comprising:
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making a substrate comprising; defining a plurality of millichannels on a first layer; attaching the first layer having the millichannels to a lower surface of a second layer, and attaching a third layer to an upper surface of the second layer; attaching the substrate to a base plate so that the first layer is coupled to the base plate, wherein the base plate is configured to cooperate with the substrate to pass a coolant through the millichannels; and attaching a power electronics to the third layer of the substrate. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification