Abstract: A control method and a controller related to electromagnetic tracking are provided. In the method, a working position is determined, and the working position is the position at which a magnetic field sensor is located relative to a magnetic field emitter; an electrical characteristic of the magnetic field emitter or the magnetic field sensor is adjusted to a target characteristic corresponding to the working position. In this way, the positioning accuracy may be improved.

Abstract: A wafer pod transfer assembly includes a wafer pod port to receive a wafer pod, a transfer axle coupled to the wafer pod port, a shaft receiver, a shaft coupled to the transfer axle and to the shaft receiver, a pin through the shaft receiver and through the shaft, wherein the pin comprises a first end and a second end, opposite the first end, and a pin buckle including a first loop and a second loop. The pin buckle is coupled to the pin, the first loop encircles the first end of the pin, and the second loop encircles the second end of the pin.

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 leak check is performed on a semiconductor wafer processing tool that includes a process chamber and process gas lines, and a semiconductor wafer is processed using the semiconductor wafer processing tool if the leak check passes. Each gas line includes a mass flow controller (MFC) and normally closed valves including an upstream and downstream valves upstream and downstream of the MFC. Leak checking includes: leak checking up to the downstream valves of the gas lines with the upstream valves closed and the downstream valves of the gas lines closed; and leak checking up to the upstream valve of each the process gas line with the upstream valves of the of the process gas lines closed and with the downstream valve of the of the process gas line being leak checked open and the downstream valve of every other process gas line closed.

Abstract: A semiconductor device and method for forming the semiconductor device are provided. In some embodiments, a semiconductor substrate comprises a device region. An isolation structure extends laterally in a closed path to demarcate the device region. A first source/drain region and a second source/drain region are in the device region and laterally spaced. A sidewall of the first source/drain region directly contacts the isolation structure at a first isolation structure sidewall, and remaining sidewalls of the first source/drain region are spaced from the isolation structure. A selectively-conductive channel is in the device region, and extends laterally from the first source/drain region to the second source/drain region. A plate comprises a central portion and a first peripheral portion. The central portion overlies the selectively-conductive channel, and the first peripheral portion protrudes from the central portion towards the first isolation structure sidewall.

Abstract: A multilevel color structure is disclosed for a metal surface, comprising a Tio2 film plated on a surface of a metal piece. The Tio2 film varies in thickness to produce multilevel color variations through the effect of light refraction.

Abstract: A folding device of glasses includes a body having two frames, and two temples that may be folded and expanded. Two magnetic attraction structures are mounted on the two temples, so that the two temples may magnetically attract each other when the glasses are disposed at a folded status. In such a manner, when the glasses are disposed at a folded status, and are hung on the pocket of a clothing, a first temple is placed in the pocket of the clothing, and a second temple is exposed outward from the pocket of the clothing, so that the two temples may attract and bond each other by the magnetic attraction structures to secure the glasses on the pocket of the clothing. Thus, the glasses can be rigidly and safely placed in the pocket, and can be removed from the pocket conveniently.

Abstract: A temple structure of the eyeglasses includes a chamber defined in the end thereof which is pivotally connected to the front of the eyeglasses, a transparent portion is defined in the outside of the temple so as to see the interior of the chamber. A perfume tube is received in the chamber and has a valve device attached thereto which has an operation end extending from the end of the temple so that when pivoting the temple toward the front, the operation end is pushed and the perfume is dispensed from the outlet defined in the operation end.