Can be a 2nd concept, determined by geometrical steps of a cross-segment of the 3D item, and it is for that reason not expected to generally be adequate as a parameter to completely explain the difficulty of precursor diffusion into 3D capabilities. Nanoscale electric-industry imaging according to a quantum sensor https://atomiclayergrowth70370.losblogos.com/21725980/atomic-layer-deposition-an-overview