Resist surface investigations for reduction of Line-Edge-Roughness in Top Surface Imaging technology

Autor: L. Van den hove, A.M. Goethals, T. Sugihara, F. Van Roey, Kurt G. Ronse
Rok vydání: 1999
Předmět:
Zdroj: Microelectronic Engineering. 46:339-343
ISSN: 0167-9317
DOI: 10.1016/s0167-9317(99)00099-4
Popis: The Line-Edge-Roughness (LER) of resist pattern on fine feature has been characterised by means of top/down line width measurements by SEM in Top Surface Imaging (TSI) technology. The resist surface investigation using AFM has provided a correlation between resist Surface Roughness (SR) and the formation mechanism of LER. LER has been improved to 7 nm at 0.18 @mm dense patterns by the optimisation of dry development conditions based on these resist surface investigation.
Databáze: OpenAIRE