%0 Journal Article
%T Optimizing Factory Performance for Unit Cost in Semiconductor Manufacturing
%A Adar A. Kalir
%J Open Journal of Optimization
%P 61-71
%@ 2325-7091
%D 2023
%I Scientific Research Publishing
%R 10.4236/ojop.2023.122005
%X The
integrated circuit (IC) manufacturing process is capital intensive and complex.
The production process of unit product (or die, as it is commonly referred to)
takes several weeks. Semiconductor factories (fabs) continuously attempt to
improve their productivity, as measured in output and cycle time (or mean flow
time). The conflicting objective of producing maximum units at minimal
production cycle time and at the highest quality, as measured by die yield, is
discussed in this paper. The inter-related effects are characterized, and a
model is proposed to address this multi-objective function. We then show that,
with this model, die cost can be optimized for any given operating conditions
of a fab. A numerical example is provided to illustrate the practicality of the
model and the proposed optimization method.
%K Semiconductor Manufacturing
%K Cycle Time
%K Die Cost
%K Unit Cost
%K Yield
%K Optimization
%K Productivity
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=125976