US 12,014,974 B2 · Power module with electrodes and heat sink and manufacturing method therefor

Abstract

A manufacturing method for a power module capable of shortening a manufacturing time for a power module is obtained. The manufacturing method for a power module includes: a subassembly arranging step of placing a subassembly including a first electrode, a semiconductor device, and a second electrode on a heat sink via a joining material; and a transfer molding step of, after the subassembly arranging step, under a state in which the first electrode, the semiconductor device, and a second-electrode inner portion are arranged in a region surrounded by the heat sink and a molding die, injecting a thermoplastic resin into the region, wherein, in the transfer molding step, the subassembly is joined to the heat sink via the joining material with use of the resin.

Claims13

Dependent claims

A power module, comprising:

a subassembly including:
a first electrode;
a semiconductor device joined to the first electrode;
and
a second electrode joined to the semiconductor device;
a heat sink to which the subassembly is joined via a joining material;
and
a resin portion molded integrally with the first electrode, the semiconductor device, a second-electrode inner portion being a portion of the second electrode joined to the semiconductor device, and the heat sink;
and
a water jacket joined to the heat sink,
wherein the water jacket includes:
a frame having a plurality of through holes;
and
a tub portion joined to the frame, and
wherein, under a state in which a plurality of heat sinks are inserted into the plurality of through holes, respectively, each of the plurality of heat sinks and the water jacket are joined to each other.

12 more elements

Dependencies are inferred from the claim text.

Power module with electrodes and heat sink and manufacturing method therefor

Life of this patent

Power module with electrodes and heat sink and manufacturing method therefor

Life of this patent

Abstract

Claims13