A system and method are described for providing simultaneously conformal coating of a plurality of three dimensional objects using atomic layer deposition. The system comprises a dielectric tube adapted for maintaining the plurality of objects under vacuum and at least one inlet for providing a gaseous material in the dielectric tube. The dielectric tube used for comprising the objects is mounted rotatable so as to be able to rotate the plurality of objects under vacuum during atomic layer deposition of a coating on the plurality of objects.
