Evaluation of cost-driven triple patterning lithography decomposition

Haitong Tian, Hongbo Zhang, Qiang Ma, Martin D F Wong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

As the current 193nm ArF immersion lithography technology is approaching its bottleneck, multiple patterning techniques have to be introduced to fulfill the process requirements in the sub-20nm technology node. Among all different patterning techniques, triple patterning lithography (TPL) is one of the major options for 14 nm or 10 nm technology node, which has a substantial requirement on process control and cost control at the same time. Patterning decomposition is the key step for the success of TPL. In the conventional TPL lithography, a constant spacing distance dmin is used to determine whether two nearby features should be on the same mask. However, in reality, the no-print and the best-print scenarios can never be separated by a clear constant number. Indeed, the decomposition criteria is closed related to lithography printing parameters, pattern types, and geometry distances. The conventional spacing rule with a constant number is way too simple. In this paper, we re-evaluate the conventional minimum spacing rule and utilize a local pattern cost model to evaluate our previous optimal TPL algorithm. Given a user specified local pattern aware cost model, our algorithm can easily embed the model into our formulation and compute an optimal solution. This demonstrates the extendability and robustness of our previous TPL algorithm.

Original languageEnglish (US)
Title of host publicationDesign for Manufacturability through Design-Process Integration VII
DOIs
StatePublished - Jun 10 2013
EventSPIE Conference on Designfor Manufacturability through Design-Process Integration, DfM-DPI 2013 - San Jose, CA, United States
Duration: Feb 27 2013Feb 28 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8684
ISSN (Print)0277-786X

Other

OtherSPIE Conference on Designfor Manufacturability through Design-Process Integration, DfM-DPI 2013
CountryUnited States
CitySan Jose, CA
Period2/27/132/28/13

    Fingerprint

Keywords

  • Cost-driven
  • Local pattern aware
  • Triple patterning lithography

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Tian, H., Zhang, H., Ma, Q., & Wong, M. D. F. (2013). Evaluation of cost-driven triple patterning lithography decomposition. In Design for Manufacturability through Design-Process Integration VII [868407] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8684). https://doi.org/10.1117/12.2011670