Modeling mask fabrication and pattern transfer distortions for EPL stencil masks

Autor: C. Magg, Edward G. Lovell, Michael J. Lercel, Phillip L. Reu, Roxann L. Engelstad
Rok vydání: 2001
Předmět:
Zdroj: Microelectronic Engineering. :467-473
ISSN: 0167-9317
DOI: 10.1016/s0167-9317(01)00470-1
Popis: Electron-beam stencil lithography, a next-generation lithography technology planned for the sub-100 nm nodes, requires the manufacture of a low distortion mask. Fabrication and pattern transfer processes were modeled for the 4-inch format mask using finite element simulations. A comparison of pattern transfer distortions between the wafer flow and the membrane flow process was conducted. Sensitivity to the stress level of the membrane layers was also investigated. In-plane and out-of-plane distortions were reported for each step in the fabrication process, utilizing the IBM Falcon pattern format.
Databáze: OpenAIRE