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Dive into the research topics where Dan Wack is active.

Publication


Featured researches published by Dan Wack.


Proceedings of SPIE | 2008

Forward solve algorithms for optical critical dimension metrology

P. L. Jiang; H. Chu; John J. Hench; Dan Wack

A review of selected current and new Maxwell equation solve algorithms used in critical dimension metrology is presented. We show that the standard RCWA can have serious issues under certain conditions, even in some typical scatterometry applications. We present some results showing that some of the newer algorithms we developed can significantly outperform the RCWA. The strengths and weakness of algorithms are illustrated.


Archive | 2012

Methods and systems for determining a critical dimension and overlay of a specimen

Ady Levy; Kyle A. Brown; Rodney Smedt; Gary Bultman; Mehrdad Nikoonahad; Dan Wack; Ibramhim Abdulhalim


Archive | 2002

Overlay marks, methods of overlay mark design and methods of overlay measurements

Mark Ghinovker; Michael E. Adel; Walter D. Mieher; Ady Levy; Dan Wack


Archive | 2001

Methods and systems for determining a critical dimension and a thin film characteristic of a specimen

Mehrdad Nikoonahad; Ady Levy; Kyle A. Brown; Gary Bultman; Dan Wack


Archive | 2001

Methods and systems for determining a presence of macro defects and overlay of a specimen

Dan Wack; Ady Levy; Kyle A. Brown; Gary Bultman; Mehrdad Nikoonahad


Archive | 2001

Methods and systems for determining at least four properties of a specimen

Mehrdad Nikoonahad; Ady Levy; Kyle A. Brown; Gary Bultman; Dan Wack


Archive | 2001

Methods and systems for determining a critical dimension, a presence of defects, and a thin film characteristic of a specimen

Mehrdad Nikoonahad; Ady Levy; Kyle A. Brown; Gary Bultman; Dan Wack


Archive | 2001

Methods and systems for determining a presence of macro and micro defects on a specimen

Gary Bultman; Ady Levy; Kyle A. Brown; Mehrdad Nikoonahad; Dan Wack


Archive | 2001

Methods and systems for determining an implant characteristic and a presence of defects on a specimen

Mehrdad Nikoonahad; Ady Levy; Kyle A. Brown; Gary Bultman; Dan Wack


Archive | 2001

Methods and systems for determining a critical dimension an a presence of defects on a specimen

Dan Wack; Ady Levy; Kyle A. Brown; Gary Bultman; Mehrdad Nikoonahad

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