  In this paper, the relativistic quantum dynamics of a scalar particle under
the effect of Lorentz symmetry violation determined by a tensor
$(K_{F})_{\mu\,\nu\,\alpha\,\beta}$ out of the Standard Model Extension is
investigated. We see that the bound-state solution of the modified Klein-Gordon
equation can be obtained, and the spectrum of energy and the wave function
depends on the Lorentz symmetry breaking parameters
