Patent ID: 8658001
Filing Date: 2014-02-25
Classification: C23C,H01J

Abstract:
1. A method for depositing a layer to a deposition thickness substantially equal to a reference deposition thickness d r in a sputter-deposition system having a target cathode connected to a power supply, comprising ordered steps of: a) providing to a controller a first parameter A, a second parameter B, and a third parameter C, selected from a group of operating parameters of the target cathode consisting of cathode voltage, cathode current, and cathode power, such that the first parameter A, the second parameter B, and the third parameter C are different operating parameters of the target cathode, by means of an interface; b) providing to the controller a reference value of the second parameter B c) controlling the power supply to start deposition of the layer, by means of the controller; d) controlling the power supply to hold the second parameter B substantially constant at the reference value of the second parameter B e) monitoring the power supply to continually measure a second dependence relationship A(t) of the first parameter A on time t during deposition of the layer, by means of the controller; f) continually determining whether a deposition time t g) controlling the power supply to stop deposition of the layer once the deposition time t