N
Nancy Zhou
Researcher at IBM
Publications - 11
Citations - 53
Nancy Zhou is an academic researcher from IBM. The author has contributed to research in topics: Photomask & Flatness (systems theory). The author has an hindex of 4, co-authored 10 publications receiving 50 citations.
Papers
More filters
Proceedings ArticleDOI
Guiding a physical design closure system to produce easier-to-route designs with more predictable timing
TL;DR: A series of techniques that may relieve the problem of routing challenges, and guide the physical design closure system to produce not only easier to route designs, but also better timing quality are discussed.
Proceedings ArticleDOI
Clock power minimization using structured latch templates and decision tree induction
Samuel I. Ward,Natarajan Viswanathan,Nancy Zhou,Chin Ngai Sze,Zhuo Li,Charles J. Alpert,David Z. Pan +6 more
TL;DR: A redundancy removal approach using set-theoretic annotation is proposed demonstrating it is possible to remove over 99% of the templates with no information loss, and a decision tree induction algorithm with novel impurity metric enables extremely fast template selection during the clock optimization stage of a modern physical design flow.
Proceedings ArticleDOI
Evaluation of 32nm advanced immersion lithography pellicles
Nancy Zhou,Kenneth C. Racette,Michael S. Hibbs,T. Mizoguchi,D. Hasselbeck,Monica Barrett,Robert Nolan,F. Houle,Jason P. Ritter,Alfred Wagner,Michael Caterer +10 more
TL;DR: In this paper, advanced immersion pellicles from several suppliers are evaluated and compared with conventional 45 nm pellicle for the following quality parameters: physical durability, foreign material, ease of demounting and glue removal, chemical outgassing, mask flatness distortion and susceptibility to radiation damage.
Proceedings ArticleDOI
PACMAN: Driving Nonuniform Clock Grid Loads for low-skew robust clock network
Nancy Zhou,Phillip J. Restle,Joseph J. Palumbo,Joseph N. Kozhaya,Haifeng Qian,Zhuo Li,Charles J. Alpert,Cliff Sze +7 more
TL;DR: A new algorithm is proposed to select the tapping points to build the global tree as regular and symmetric as possible and can efficiently reduce global clock skew, rising slew, maximum overshoot, reduce power, and avoid local skew violation.
Proceedings ArticleDOI
Effect of pellicle frame and adhesive material on final photomask flatness
Nancy Zhou,Ken Racette,David Hasselbeck,Monica Barrett,Robert Nolan,Michael Caterer,Takashi Mizoguchi,Satoshi Akutagawa,Glenn Dickey,Toru Shirasaki +9 more
TL;DR: In this paper, the effect of the elasticity of the pellicle adhesives on mask flatness has been evaluated and it has been shown that a more flexible adhesive adhesive can improve the mask's flatness approximately the same amount as reducing the total frame standoff height.