  A theoretical model is developed for treating super conductive Bose-Einstein
condensation (BEC) effects for excitons in planar systems, under the condition
that many excitons are included in a surface area, with the dimensions of the
exciton center of mass de Broglie (dB) wave length, and under the condition
that attractive forces are introduced between different excitons. The total
internal energy of the excitonic system is found to be composed of the separate
excitons positive energies, and negative energy due to scattering between
different excitons. We assume that for high density of excitons, and
corresponding attractive interactions between excitons, excitons in internal
mode k are annihilated and in the same time excitons in internal mode k ' are
created, where these scattering effects are integrated for all k and k '
values. It is assumed that the internal momenta of the excitonic system,
remains in a quasi-stationary state, with approximately Bose distribution.
Self-consistent equation for BEC of electrons-holes pairs and corresponding
phase transition temperature are developed as function of electromagnetic
interactions, experimental conditions and parameters. Possible applications by
the use of the present theory are described
