A method, device and computer program product for managing data versions. A retaining pin fits inside a pinion shaft radially bore and a pinion carrier radially bore to constrain the axial and rotational movement of the pinion shaft relative to the pinion carrier. A system is also provided that uses multi-tiered CSI quantizers. The first and second n-type diffusion regions are formed in a spaced apart manner relative to the first parallel direction, such that no single line of extent that extends across the substrate perpendicular to the first parallel direction intersects both the first and second n-type diffusion regions. PCC value denoting the number of projections on the film per a unit of area along a mean roughness plane and the three-dimensional surface roughness SRa satisfy the following relationship: PCC value7000-45000SRa.