  In this paper, we present an explicit cyclic minimal $A_\infty$ model for the
category of matrix factorizations $\MF(W)$ of an isolated hypersurface
singularity. The key observation is to use Kontsevich's deformation
quantization technique. Pushing this idea further, we use the Tsygan formality
map to obtain a comparison theorem that the categorical Variation of
Semi-infinite Hodge Structure of $\MF(W)$ is isomorphic to Saito's original
geometric construction in primitive form theory. An immediate corollary of this
comparison result is that the analogue of Caldararu's conjecture holds for the
category $\MF(W)$.
