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VACUUM ›› 2021, Vol. 58 ›› Issue (3): 51-54.doi: 10.13385/j.cnki.vacuum.2021.03.10

• Thin Film • Previous Articles     Next Articles

Solutions for Asymmetrical Target Erosion Due to Cross-Cathode Effect

YU Hua-jun, ZHAO Xi-jun, WU Rui-jun   

  1. Wujiang CSG HuaDong Architectural Glass Co., LTD, SuZhou 215222, China
  • Received:2020-07-16 Online:2021-05-25 Published:2021-06-01

Abstract: Asymmetrical accelerated erosion of one of the two turnarounds on each target in a cathode pair is due to the asymmetrical anode arrangement.The side of the racetrack closest to the anode builds a stronger plasma that travels in the hall current direction and is dragged into the turnarounds leading to a higher erosion rate.The side of the racetrack,that is furthest from the anode,does not carry as much energy into the turnarounds and thus does not erode the target as much.This phenomenon is called Cross-Cathode effect.This article analyzes the Cross-Cathode effect and discusses how to minimize the Cross-Cathode effect.

Key words: magnetron sputtering, asymmetrical sputtering, target utilization, Cross-Cathode effect

CLC Number: 

  • TB79
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