1. International SEMATECH: International Technique Roadmap for Semiconductors.
2. ASTM. Standard test method for measuring sori on silicon wafers by automated noncontact scanning, F1451-92.
3. Poduje N. Eliminating gravitational effect in wafer shape measurements. In: Technology for Advanced Materials/Process Characterization, NIST/ASTM/SEMI/SEMATECH Technology Conference, Dallas, TX, February 1, 1990.
4. JIS. Methods of measurement of thickness, thickness variation and bow for silicon wafer, H0611-1994.
5. ASTM. Standard test method for measuring warp and total thickness variation on silicon wafers by noncontact scanning, F657-92.