POSITIONING DEVICE TO POSITION ONE OR MORE PLATES FOR ELECTRONIC CIRCUITS IN A METAL DEPOSITION UNIT, AND RELATED METHOD

摘要

A positioning device to position one or more plates of electronic circuits with respect to an operating unit. The device comprises a rotary member which rotates selectively between a first operating position and a second operating position, and a positioning member mounted on the rotary member. The positioning member comprises a frame, which is mounted removably on the rotary member, and a strip of transpirant material on which each plate is rested. The strip is wound between a pair of winding/unwinding rollers, pivoted on the frame. The positioning member also comprises heating means able to heat the wafer to take it to a determinate operating temperature.