  We formulate and prove a Riemann-Hilbert correspondence between
$\hbar$-differential equations and sheaf quantizations, which can be considered
as a correspondence between two kinds of quantizations (deformation and sheaf
quantization) of holomorphic cotangent bundles. The latter category is expected
to be equivalent to a version of Fukaya category, which is a "quantization" of
Lagrangian intersection theory. The ideas of the constructions are based on
asymptotic/WKB analysis, which is related to geometric quantization.
