A holistic metrology approach: multi-channel scatterometry for complex applications

Autor: Hyang Kyun (Helen) Kim, Boaz Brill, Igor Turovets, Susan Emans, Alok Vaid, Boris Sherman, Cornel Bozdog, Ronen Urensky, Matthew Sendelbach
Rok vydání: 2011
Předmět:
Zdroj: SPIE Proceedings.
ISSN: 0277-786X
Popis: Improvement in metrology performance when using a combination of multiple optical channels vs. standard single optical channel is studied. Two standard applications (gate etch 4x and STI etch 2x) are investigated theoretically and experimentally. The results show that while individual channels might have increased performance for few individual parameters each - it is the combination of channels that provides the best overall performance for all parameters.
Databáze: OpenAIRE