Abstract: A calibration method to find the impedance of a radio frequency front-end (RFFE) is provided. The RFFE includes a feedback end and a tuner. The tuner is set to a first predetermined setting to have a first impedance. An output end of the tuner is set to different calibration settings. The first reflection coefficient sets at the feedback end is obtained. The second impedance from the feedback end of the RFFE to an input end of the tuner is calculated based on the first reflection coefficient. The tuner is set to a second predetermined setting. The second reflection coefficient sets at the feedback end is obtained. The third impedance of the tuner in the second predetermined setting is calculated based on the second impedance from the feedback end of the RFFE to the input end of the tuner and the second reflection coefficient sets.

Abstract: A method for performing antenna tuning control of a wireless transceiver device in a wireless communications system and associated apparatus are provided.

Abstract: A semiconductor structure and a method for manufacturing a semiconductor structure are provided. The semiconductor structure includes: a substrate; a gate trench located in the substrate; a gate oxide layer located on a side wall and a bottom of the gate trench; and a gate conductive layer located on a surface of the gate oxide layer, a top of the gate conductive layer being lower than a top of the gate trench. The gate oxide layer includes an ion implantation area. A bottom of the ion implantation area is higher than a bottom of the gate conductive layer and lower than the top of the gate conductive layer, and a top of the ion implantation area is higher than or flush with the top of the gate conductive layer.

Abstract: A surface treatment method of a magnesium alloy article includes, instead of forming a primer on a magnesium alloy based composite first, directly performing a hairline finish process on the magnesium alloy based composite, to form a hairline structure on a surface of the magnesium alloy based composite, and performing a chemical oxidation process on the magnesium alloy based composite, to form a glossy film covering the hairline structure on the magnesium alloy based composite, thereby forming a magnesium alloy article structure. Alternatively, another chemical oxidation process is performed before the hairline finish process, to form an oxide film on the surface of the magnesium alloy based composite.

Abstract: A surface treatment method of a magnesium alloy article includes, instead of forming a primer on a magnesium alloy based composite first, directly performing a hairline finish process on the magnesium alloy based composite, to form a hairline structure on a surface of the magnesium alloy based composite, and performing a chemical oxidation process on the magnesium alloy based composite, to form a glossy film covering the hairline structure on the magnesium alloy based composite, thereby forming a magnesium alloy article structure. Alternatively, another chemical oxidation process is performed before the hairline finish process, to form an oxide film on the surface of the magnesium alloy based composite.

Abstract: A method for detecting tool errors to stop a process recipe for a single chamber is disclosed. When a recipe error for one of chamber of a process tool is detected, only the chamber with the recipe error is terminated and other chambers are allowed to proceed with their recipe processes for preventing excursions.

Abstract: A method for detecting tool errors to stop a process recipe for a single chamber is disclosed. When a recipe error for one of chamber of a process tool is detected, only the chamber with the recipe error is terminated and other chambers are allowed to proceed with their recipe processes for preventing excursions.