  In this manuscript, we discuss the confinement of the spin $\frac{1}{2}$
field on a plethora of branewords models. Recently, in (Eur.Phys.J.C 80 (2020)
5, 432), we studied the consistency of the Standard Model (SM) fields
localization on braneworlds with the Einstein equation. In that paper, we
discussed the consistency of the spinor field confinement and, by using a
Yukawa-like interaction given by $\mathcal{L}_{int}\propto f(y)\bar{\Psi}\Psi$,
we obtained that the function must be defined as $f(y)\propto e^{-A}A'$. This
shape of the scalar function emerge from the requirement that the spin
$\frac{1}{2}$ (zero-mode) localization cannot modify the metric on bulk. This
ensures that the confinement of gravity on the brane is preserved. In the
present manuscript, we find a covariant scalar-coupling function that can
generate this interaction. This provide a new mechanism for localizing fermion
fields over the brane. We also discuss massive modes and we found some
gravitational configuration where there are confined and discretized massive
modes.
