Atomic chlorine concentration measurements in a plasma etching reactor. I. A comparison of infrared absorption and optical emission actinometry.

Autor: Richards, Albert D., Thompson, Brian E., Allen, Kenneth D., Sawin, Herbert H.
Předmět:
Zdroj: Journal of Applied Physics; 8/1/1987, Vol. 62 Issue 3, p792, 7p
Abstrakt: Presents a study that measured the atomic chlorine concentration in chlorine (Cl)[sub2] and CF[sub3]Cl plasmas using both infrared absorption spectroscopy and optical emission actinometry. Reason why free radical concentration measurements made by direct monitoring of plasma emission intensity can give misleading results; Validity of actinometric techniques for fluorine atom detection; Correlation of Cl with the etching rate of heavily P-doped polysilicon.
Databáze: Complementary Index