Power module and process for producing power modules
First Claim
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1. A power module, comprising:
- an insulation plate coated with metal on both sides, functioning as a circuit carrier, having an upper side with a structured metal layer, and having power components mounted on said structured metal layer, said structured metal layer having a contact-connection surface;
a housing encasing said insulation plate;
a flat conductor having an inner flat-conductor end and an outer flat conductor end projecting outside of said housing; and
a thermocompression head electrically interconnecting said flat-conductor end and said contact-connection surface of said structured metal layer.
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Abstract
A power module has a circuit carrier that, on its upper side is coated with a structured metal layer and mounted with power components. The power components are driven by flat conductors, the inner flat-conductor ends of which interact, via thermocompression heads, with contact-connection surfaces, while the outer flat-conductor ends project out of the housing of the power module. A process is described for producing the power module.
27 Citations
49 Claims
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1. A power module, comprising:
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an insulation plate coated with metal on both sides, functioning as a circuit carrier, having an upper side with a structured metal layer, and having power components mounted on said structured metal layer, said structured metal layer having a contact-connection surface;
a housing encasing said insulation plate;
a flat conductor having an inner flat-conductor end and an outer flat conductor end projecting outside of said housing; and
a thermocompression head electrically interconnecting said flat-conductor end and said contact-connection surface of said structured metal layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A process for producing a power module, which comprises the steps:
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providing a circuit carrier board having contact islands, conductor tracks, and contact-connection surfaces of a structured metal layer in a plurality of module installation positions;
coating at least the contact-connection surfaces with a bondable coating;
applying thermocompression heads to the contact-connection surfaces;
dividing the circuit carrier board into individual circuit carriers for each module installation position;
providing a system carrier having a system carrier frame;
extending flat conductors with inner flat-conductor ends from the system carrier frame toward a plurality of the module installation positions;
orienting and connecting the thermocompression heads on the contact-connection surfaces of each circuit carrier to the inner flat-conductor ends of each leadframe in the module installation positions of the system carrier;
applying a plurality of power components in each module installation position;
applying bonding connections to the power components;
packaging each module installation position of the system carrier together with power components disposed on the circuit carriers in a housing; and
dividing the system carrier into individual multichip power modules. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A process for producing a power module, which comprises the following process steps:
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providing a circuit carrier board having a plurality of module installation positions including contact islands, conductor tracks, and contact-connection surfaces of a structured metal layer;
selectively coating the contact-connection surfaces with a bondable coating;
mounting a plurality of power components on the circuit carrier board in each module installation position;
applying bonding connections in each module installation position;
applying thermocompression heads to the contact-connection surfaces;
dividing the circuit carrier board into individual circuit carriers for each module installation position;
providing a system carrier having a system carrier frame;
extending flat conductors with inner flat-conductor ends toward a plurality of the module installation positions;
orienting and connecting the thermocompression heads on the contact-connection surfaces of each circuit carrier to the inner flat-conductor ends of each leadframe in the module installation positions of the system carrier;
packaging each module installation position of the system carrier together with power components disposed on circuit carriers in a housing; and
dividing the system carrier into individual multichip power modules. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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Specification