Abstract: A carriage assembly for use with an assembling apparatus is provided. The assembling apparatus is used to assemble operatively upper and lower portions of an integrated circuit carrier with co-operative upper and lower clamping members. The carriage assembly includes a linear carriageway in a working zone of the assembling apparatus and spaced from a support surface of the apparatus. Also included is a first holding mechanism movable along the linear carriageway and configured to hold the upper carrier portion and to displace said upper portion substantially orthogonally with respect to said linear carriageway towards and away from a support surface of the assembling apparatus, and a second holding mechanism movable along the linear carriage and configured to hold the upper clamping member and to displace the upper clamping member towards and away from the support surface.