Damage Caused by Stored Charge during ECR Plasma Etching

Seiji SAMUKAWA

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Summary :

Leakage current shift of CMOS inverter circuits due to stored charge during Electron Cyclotron Resonance (ECR) plasma exposure was smaller than Reactive Ion Etching (RIE). But in case applied RF power is turned off at the same time of microwave power off, gate insulator breaks down. Also, electrostatic chuck cooling (ESC cooling) for cooling wafer makes stored charge larger.

Publication
IEICE TRANSACTIONS on transactions Vol.E72-E No.4 pp.315-317
Publication Date
1989/04/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section LETTER (Special Issue on 1989 Spring National Convention IEICE)
Category
LSI Technology

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