  We propose a novel ion trap design with the high collection efficiency
parabolic-mirror integrated with the ion trap electrodes. This design has three
radio frequency (RF) electrodes and eight direct current(DC) compensation
electrodes. By carefully adjusting three RF voltages, the parabolic mirror
focus can be made precisely coincident with the RF null point. Thus, the
aberration and the ion micromotion can be minimized at the same time. This
monolithic design can significantly improve the ion-ion entanglement generation
speed by extending the photon collecting solid angle beyond $90\%\cdot4\pi$.
Further analysis of the trapping setup shows that the RF voltage variation
method relexes machining accuracy to a broad range. This design is expected to
be a robust scheme for trapping ion to speed entanglement network node.
