Mi Baoyong. In situ Monitoring Etch Process and Endpoint for LSI by the Plasma Emission Spectroscopy[J]. Editorial Office of Optics and Precision Engineering, 1996,(3): 75-80
Mi Baoyong. In situ Monitoring Etch Process and Endpoint for LSI by the Plasma Emission Spectroscopy[J]. Editorial Office of Optics and Precision Engineering, 1996,(3): 75-80DOI:
This paper describes the etching principe of the plasma etch and the reactive-ion etch for Large scale integration of circuits and basic methods for monitoring etch process on line.Implementation of monitoring etch process for large scale integration of circuits by the plasma emission spectroscopy and results of monitoring are described in the paper in detail.The minimum area monitored of 0.3 cm
2
and the dynamic monitoring accuracy of less than 80Å have been obtained. Finally the paper will discuss factors influellde on monitoring precision.