Abstract: A semiconductor device and a method of forming the same are provided. The method includes forming a bottom electrode layer over a substrate. A magnetic tunnel junction (MTJ) layers are formed over the bottom electrode layer. A top electrode layer is formed over the MTJ layers. The top electrode layer is patterned. After patterning the top electrode layer, one or more process cycles are performed on the MTJ layers and the bottom electrode layer. A patterned top electrode layer, patterned MTJ layers and a patterned bottom electrode layer form MTJ structures. Each of the one or more process cycles includes performing an etching process on the MTJ layers and the bottom electrode layer for a first duration and performing a magnetic treatment on the MTJ layers and the bottom electrode layer for a second duration.

Abstract: A three-dimensional printing apparatus includes a liquid tank capable of accommodating a photosensitive liquid. The liquid tank includes a film, a plurality of side walls, a plate and a motor. The film has a workpiece curing area. The plurality of side walls surrounds the film. The plate is capable of supporting the film and having at least one fluid tunnel extending from a first surface of the plate contacting the film to a second surface of the plate. The motor is connected to the liquid tank to incline the liquid tank. A gap is formed between the plat and one of the plurality of side walls of the liquid tank, and the film is communicated with an outside space via the gap.

Abstract: A speaker stand of a speaker is used to support a speaker and contains: a base, an upright tube, an adjustable tube, a securing set, a connecting rod, a fixing member, a rotating member, and a positioning plate. The base includes an upright tube disposed therein. The adjustable tube is mounted in and moves upwardly and downwardly in the base. The securing set, is fitted on a top end of the adjustable tube, rotates 360 degrees leftward and rightward relative to the upright tube, and moves upwardly and downwardly. A fixing member is located at one end of the connecting rod. The rotating member is axially connected with and rotates relative to the fixing member, and a positioning plate is secured on one side of the rotating member and rotates along the rotating member.