▎ 摘　　要

NOVELTY - The method involves performing sputtering process by a surface of a non-oxygen copper collection electrode layer and a surface of a nickel metal transition layer, where size of the nickel metal transition layer is maintained at about 20 to 50 nm. Gas phase deposition process is performed by a multi-layer graphene material. An electrode is dipped with acetic acid water solution. The electrode is dried after completion of dipping process. The dried electrode is coated with plating metal by using a sputtering coating machine. USE - Electronic multi-stage vacuum decompression-based copper electrode graphene surface treating method. ADVANTAGE - The method enables coating graphene material with a non-oxygen copper electrode in a simple manner to increase electronic emission efficiency so as to increase efficiency of multi-stage decompression, thus increasing total efficiency of a travelling wave tube, and hence reducing processing cost. The method enables increasing heat conducting performance with high intensity and easily removing graphite dust to increase surface treating efficiency with high reliability. DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of an electronic multi-stage vacuum decompression-based copper electrode graphene surface treating method.