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US 11,915,990 B2Granted
Method for manufacturing a power module unit
AssigneeSiemens Aktiengesellschaft
InventorsDaniel Kappauf, Stanislav Panicerski, Jens Schmenger
Life of this patent
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Abstract
In a method of manufacturing a power module unit, cooling fins are positioned in recesses of a frame, in particular a metal frame. A first metallic material is applied to the cooling fins and the frame by a thermal spraying process, causing the applied first metallic material to produce a material bond between the cooling fins and the frame.
Claims14
A method of manufacturing a power module unit, said method comprising:
- positioning cooling fins in recesses of a frame, in particular a metal frame;
- applying a first metallic material to the cooling fins and the frame by a thermal spraying process, causing the applied first metallic material to produce a material bond between the cooling fins and the frame;
- milling off a first surface flat after the first metallic material has been applied;
- applying a dielectric substrate to the first surface in a materially bonded manner;
- applying a second metallic material to the dielectric substrate;
- and
- milling off a second surface of the second metallic material flat after applying the second metallic material to the dielectric substrate.
4 more elements
A method of manufacturing a power module unit, said method comprising:
- positioning cooling fins in recesses of a frame, in particular a metal frame;
- applying a first metallic material to the cooling fins and the frame by a thermal spraying process, causinq the applied first metallic material to produce milling off a first surface flat after the first metallic material has been applied;
- applying a dielectric substrate to the first surface by a thermal spraying process;
- applying a second metallic material to the dielectric substrate;
- and milling off a second surface of the second metallic material flat after applying the second metallic material to the dielectric substrate.
2 more elements
Dependencies are inferred from the claim text.