  Several different vertex detector designs for the Linear Collider
Detector(LCD) are evaluated in the context of measurements of the branching
ratio of the standard model Higgs particle decaying into charm/anti-charm final
states. Fast Monte Carlo simulations are used to model the detector and neural
network-optimized flavor tagging is used to perform the measurements. These
tools are used to study the effects of pixel resolution, material thickness,
and inner layer radius on the flavor tagging efficiency-purity curve and
ultimately on the branching ratio measurement error.
