Abstract: A casing includes a first portion, a second portion, and at least one sensor. The second portion is slidably engaged with the first portion. The at least one sensor is coupled to the first portion or the second portion, the sensor detects a distance between the first portion and the second portion. A portable electronic device using the casing is also provided.

Abstract: An input structure applied in a portable electronic device includes a main body and an electric assembly. The main body is detachably fitted to the portable electronic device. The electric assembly includes a sensing module and a communication module. The sensing module triggers electric signals in respond to manipulation of users. The communication module communicates with the sensing module and the portable electronic device to send the electric signals to the portable electronic device.

Abstract: An input structure applied in a portable electronic device includes a main body and an electric assembly. The main body is detachably fitted to the portable electronic device. The electric assembly includes a sensing module and a communication module. The sensing module triggers electric signals in respond to manipulation of users. The communication module communicates with the sensing module and the portable electronic device to send the electric signals to the portable electronic device.

Abstract: In a method for display polyhedrons on a touch screen of an electronic device, a folder is displayed on the touch screen, the coordinates of the folder and icons included in the folder are obtained. The folder is removed from the touch screen, and a polyhedron is generated in a display location of the folder according to the coordinates of the folder. Each of the icons included in the folder is linked with a side of the polyhedron. The polyhedron generated in the display location of the folder is displayed, and the icons linked with the sides of the polyhedron are displayed on the sides of the polyhedron when the sides are visible with a movement of the polyhedron.

Abstract: A casing includes a first portion, a second portion, and at least one sensor. The second portion is slidably engaged with the first portion. The at least one sensor is coupled to the first portion or the second portion, the sensor detects a distance between the first portion and the second portion. A portable electronic device using the casing is also provided.

Abstract: A case includes a main body, a storage module, a connector, a Wi-Fi Direct module, and a Bluetooth® module. The main body is coupled to a portable electronic device. The connector is extended from the main body and is connected to a data transmitting connector of the portable electronic device. The Wi-Fi Direct module is wirelessly connected to the portable electronic device. The Bluetooth® module is connected to the portable electronic device via Bluetooth®. The connector, the Wi-Fi Direct module, or the Bluetooth® module selectively connects to the portable electronic device, thereby establishing communication with the storage module to enlarge a storage capacity. A connecting method of the case and the portable electronic device is also provided.

Abstract: Real time monitoring of a plasma etching process is performed by monitoring the intensity of a specific wavelength created by the plasma. Changes in the intensity of the plasma wavelength indicate the end-point in time for the process. The end-point value is compared with one or more reference values to determine whether the etching process is stable. End-point values outside of a pre-selected range of values is indicative of unstable processing conditions, thus allowing termination of the etching process before unstable conditions can result in substantial scrap.