Power module for solid-state circuit breaker

A solid-state circuit breaker comprising a power module, the power module comprising:

• a first substrate and a second substrate stacked on each other;
• a first terminal electrically coupled to the first substrate and a second terminal electrically coupled to the second substrate;
• and
• a chip assembly disposed between the first substrate and the second substrate, and comprising:
• a plurality of bottom-side transistors having drains electrically coupled to the first substrate and comprising a first set of bottom-side transistors and a second set of bottom-side transistors;
• a plurality of top-side transistors having drains electrically coupled to the second substrate and comprising a first set of top-side transistors and a second set of top-side transistors;
• a gate drive board comprising a drive board insulating layer, and a bottom-side metal layer and a top-side metal layer disposed on opposite surfaces of the drive board insulating layer, the bottom-side metal layer being electrically coupled to gates of the plurality of bottom-side transistors, the top-side metal layer being electrically coupled to gates of the plurality of top-side transistors;
• and
• a first metal connector and a second metal connector disposed on opposite sides of the gate drive board, the first metal connector being electrically coupled to sources of the first set of bottom-side transistors and the first set of top-side transistors, the second metal connector being electrically coupled to sources of the second set of bottom-side transistors and the second set of top-side transistors.