Abstract: A thin film transistor includes an active layer located over a substrate, a first gate stack including a stack of a first gate dielectric and a first gate electrode and located on a first surface of the active layer, a pair of first contact electrodes contacting peripheral portions of the first surface of the active layer and laterally spaced from each other along a first horizontal direction by the first gate electrode, a second contact electrode contacting a second surface of the active layer that is vertically spaced from the first surface of the active layer, and a pair of second gate stacks including a respective stack of a second gate dielectric and a second gate electrode and located on a respective peripheral portion of a second surface of the active layer.

Abstract: A tripod device includes a coupling device disposed on a socket of the tripod for supporting a camera, and one or more batteries received in the coupling device for selectively energizing the camera when the the batteries of the camera have been consumed or are damaged. The coupling device includes a housing having fastener for securing to the camera, and a casing having a channel for receiving the fastener, and a lateral groove for receiving a knob which may rotate the fastener. The batteries may be coupled to the other electric energy sources of such as the vehicles.