The steady development of fMRI techniques has enabled the use of submillimetre-resolution in recent fMRI studies. The use of submillimetre-resolution allows the detection of cortical, depth-dependent brain activation. Although there have been numerous attempts to perform submillimetre-resolution fMRI, the level of spatial resolution in several recent works is still around 0.7 mm. Moreover, most methods do not provide whole-brain coverage. Therefore, this work aims to develop a novel half-millimetre resolution fMRI technique capable of providing whole-brain coverage. Here, the method was employed for exemplary finger-tapping fMRI at 7T and the identification of cortical-depth dependent brain activation was demonstrated.