Patent ID: 8061177
Filing Date: 2011-11-22
Classification: B21J,B21K,C21D,C22F,Y10S,Y10T

Abstract:
1. A sputtering target comprising: (a) a pot having a refractory metal component; and (b) a collar attached to the pot; wherein the pot is made by a process comprising: wherein a fourth annealing step is carried out either (1) after step (j) before step (k), or (2) after step (k), wherein the upset forging and forging back of the work pieces is carried out such that the diameter of the work piece in each instance is increased or reduced, respectively by upset forging and forging back, relative to a longitudinal axis of the cylindrical first work piece, and wherein dimensions of at least one work piece or plate suitable for processing into a pot are pre-determined with a computer-implemented finite element modeling assessment method so that at least one work piece in steps (b)-(j) or plate in step (k) has dimensions that are substantially similar to the dimensions determined by the computer-implemented finite element modeling assessment method.