Experimental and Theoretical Study of the Charge Build-Up in an ECR Etcher

Autor: Morio Inoue, Takashi Namura, Yoshihiro Todokoro, Yasushi Naitoh, Hiroyuki Okada
Rok vydání: 1990
Předmět:
Zdroj: Japanese Journal of Applied Physics. 29:2251
ISSN: 1347-4065
0021-4922
DOI: 10.1143/jjap.29.2251
Popis: The charge build-up in an electron cyclotron resonance (ECR) etcher has been studied experimentally and theoretically. The experimental results show that the charge build-up profiles of the wafer are convex and positive, and are detected only when the RF bias exists. We have derived a simplified equivalent circuit model for the wafer in an ECR etcher. The charge build-up profile predicted with the simplified equivalent circuit model shows a good agreement with the experimental results. It is concluded that the variation of plasma potential caused by the radial RF current across the magnetic field results in the charge build-up.
Databáze: OpenAIRE