Abstract: A method, apparatus and system for fabricating nanometer range, thin multilayers, multilayered nanowires and nonocomposites by multiple bath electro-deposition of a plurality of thin lazers on a substrate, with the purpose to complete the actually developing nanotechnologies, are described. A closed electrochemical system with multiple baths, protected by inert gas, where the chemical solutions are transferred there and back between different chemical tanks and an electrochemical cell, are used to produce thin, in nanometerrange, multiple layer depositions on a substrate which stays on a fix position for all the deposition cycles inside the electrochemical cell. The transfer method protects the system against the cross contamination between different chemical solutions and the risk of contamination of the chemical solutions on their way to and from the chemical tanks. The cleaning method protects the deposited layers aginst undersirable surface reactions.