Potentials of On-Line Scanning Electron Microscope Performance Analysis Using NIST Reference Material 8091

Published

June 1, 2000

Author(s)

Michael T. Postek, Andras Vladar, Nien F. Zhang, Robert D. Larrabee

Abstract

Fully automated scanning electron microscopes (SEM) are now commonly used in semiconductor production and other forms of manufacturing. Testing and proving that the instrument is performing at a satisfactory level of sharpness is an important aspect of quality control. In industrial applications, such as automated on-line semiconductor production, users of scanning electron microscope (SEM) metrology instruments would like to have these instruments function without human intervention for long periods of time, and to have some simple criterion (or indication) of when they need servicing or other attention. Currently, no self-testing is incorporated into the majority of these instruments to verify that the instrument is operating at a satisfactory performance level. Therefore, there is a growing realization of the need for the development of a procedure for periodic performance testing. A degradation of the sharpness of the image of a suitable test object can serve as, of perhaps several, indicators of the need for maintenance

Proceedings Title

Proceedings of SPIE, Metrology, Inspection, and Process Control for Microlithography XIV, Neal T. Sullivan, Editor

Volume

3998

Conference Dates

February 28, 2000

Conference Location

Santa Clara, CA, USA

Conference Title

Electrical Methods for CD Metrology

Pub Type

Conferences

Keywords

kurtosis, research material, scanning electron microscope, SEM monitor, standards

Citation

Postek, M. , Vladar, A. , Zhang, N. and Larrabee, R. (2000), Potentials of On-Line Scanning Electron Microscope Performance Analysis Using NIST Reference Material 8091, Proceedings of SPIE, Metrology, Inspection, and Process Control for Microlithography XIV, Neal T. Sullivan, Editor, Santa Clara, CA, USA (Accessed December 14, 2024)