Abstract: A physical vapor deposition (PVD) system is provided. The PVD system includes a PVD chamber defining a PVD volume within which a target material of a target is deposited onto a wafer. The PVD system includes the target in the PVD chamber. The target is configured to overlie the wafer. An edge of the target extends from a first surface of the target to a second surface of the target, opposite the first surface of the target. A first portion of the edge of the target has a first surface roughness. The first portion of the edge of the target extends at most about 6 millimeters from the first surface of the target to a second portion of the edge of the target. The second portion of the edge of the target has a second surface roughness less than the first surface roughness.

Abstract: A method for inputting multi-language texts in digital devices and/or electronic devices comprises steps of determining syllables in texts to be input, separating the texts to be input into text units for inputting according to the determined syllables therein, inputting the texts to be input via inputting the text units one by one in sequence, defining an original position for a hand of users for inputting, defining at least one operation direction directing away from the original position, defining at least one inputting position along each of the at least one operation direction, assigning an alphabet to the each of the at least one inputting position, and inputting the texts to be input by moving at least one finger of the hand from the original position to the each of the at least one inputting position.

Abstract: A three dimensional (3D) printer comprises at least one printer robot, and each of the at least one printer robot comprises a printer head used for printing out printing material to execute 3D printing commands, a locator being capable of sensing a position of the printer head, and a processor being data communicable with the printer head and the locator. The processor is used for receiving the 3D printing commands wirelessly, retrieving the sensed position of the printer head from the locator, and controlling the printer head to adjust the position of the printer head for printing out the printing material based on the received 3D printing commands. Each of the at least one printer robot further comprises at least three robot legs. The at least three robot legs are capable of situating on a working table for weight support of the at least one printer robot during 3D printing.

Abstract: A method for inputting multi-language texts in digital devices and/or electronic devices comprises steps of determining syllables in texts to be input, separating the texts to be input into text units for inputting according to the determined syllables therein, inputting the texts to be input via inputting the text units one by one in sequence, defining an original position for a hand of users for inputting, defining at least one operation direction directing away from the original position, defining at least one inputting position along each of the at least one operation direction, assigning an alphabet to the each of the at least one inputting position, and inputting the texts to be input by moving at least one finger of the hand from the original position to the each of the at least one inputting position.