Abstract: A package includes a frontside redistribution layer (RDL) structure, a semiconductor die on the frontside RDL structure, and a backside RDL structure on the semiconductor die including a first RDL, and a backside connector extending from a distal side of the first RDL and including a tapered portion having a width that decreases in a direction away from the first RDL, wherein the tapered portion includes a contact surface at an end of the tapered portion. A method of forming the package may include forming the backside redistribution layer (RDL) structure, attaching a semiconductor die to the backside RDL structure, forming an encapsulation layer around the semiconductor die on the backside RDL structure, and forming a frontside RDL structure on the semiconductor die and the encapsulation layer.

Abstract: An optical element driving mechanism is provided and includes a fixed assembly, a movable assembly, a driving assembly and a stopping assembly. The fixed assembly has a main axis. The movable assembly is configured to connect an optical element, and the movable assembly is movable relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move relative to the fixed assembly. The stopping assembly is configured to limit the movement of the movable assembly relative to the fixed assembly within a range of motion.

Abstract: A light-adjusting device having first regions and second regions is provided. The light-adjusting device includes pillars that form several groups of meta structures. The groups of meta structures correspond to the first regions, and from a top view, the first regions and the second regions are arranged in a checkerboard pattern.

Abstract: A portable hot water supply tank is adapted to be used with a heat source, and includes a water storage unit, a heat exchange unit, and a circulation unit. The water storage unit includes a base member defining a lower water chamber. The heat exchange unit includes a heat exchanger connected to the base member. The circulation unit includes an inlet pipe and an outlet pipe. The heat exchanger is movable relative to the base member between an unfolded position and a folded position. When the heat exchanger is at the first position, water stored in the lower water chamber is drawn into the inlet pipe, flows through the heat exchanger to be heated by the heat source, and eventually flows back to the lower water chamber via the outlet pipe.

Abstract: A portable hot water supply tank is adapted to be used with a heat source, and includes a water storage unit, a heat exchange unit, and a circulation unit. The water storage unit includes a base member defining a lower water chamber. The heat exchange unit includes a heat exchanger connected to the base member. The circulation unit includes an inlet pipe and an outlet pipe. The heat exchanger is movable relative to the base member between an unfolded position and a folded position. When the heat exchanger is at the first position, water stored in the lower water chamber is drawn into the inlet pipe, flows through the heat exchanger to be heated by the heat source, and eventually flows back to the lower water chamber via the outlet pipe.