Abstract: A semiconductor device includes a first stack of alternating first word line layers and first insulating layers over a semiconductor layer. The first stack includes a first array region and a first staircase region adjacent to the first array region. The semiconductor device includes a second stack of alternating second word line layers and second insulating layers, where the second stack includes a second array region over the first array region and a second staircase region adjacent to the second array region and over the first staircase region. The first stack further includes a first transition layer over the first word line layers. The first transition layer includes a first dielectric portion in the first array region that surrounds the first channel structure and a first conductive portion. The first transition layer is disposed between two adjacent first insulating layers of the first insulating layers.

Abstract: A battery module is configured to discharge to a terminal device, and the battery module includes: a detection and control unit, a buck-boost unit, and a cell pack. The detection and control unit is configured to: receive a terminal-required voltage sent by the terminal device; and control the buck-boost unit to discharge to the terminal device through the cell pack based on the terminal-required voltage.