Molecular dynamics simulations based on a modified Stillinger-Weber po
tential are used to investigate the elementary steps of bonding two Si
(0 0 1) wafers. The energy dissipation and thus the dynamic bonding be
haviour are controlled by the transfer rates for the kinetic energy. T
he applicability of the method is demonstrated by studying the interac
tion of perfect wafer surfaces (UHV conditions). First calculations co
vering the influence of surface steps, rotational misorientations and
adsorbates are presented.