SURFACE TREATED METAL MATERIAL, METAL FOIL WITH CARRIER, CONNECTOR, TERMINAL, LAMINATE, SHIELD TAPE, SHIELD MATERIAL, PRINTED WIRING BOARD, METAL PROCESSING MEMBER, MANUFACTURING METHOD OF ELECTRONIC APPARATUS AND MANUFACTURING METHOD OF PRINTED WIRING BOARD

摘要

PROBLEM TO BE SOLVED: To provide a surface treated metal material having a metal material surface capable of being manufactured with simple means and having good beautiful appearance and recognition property.SOLUTION: There is provided a surface treated metal material having a metal material and a Ni-Zn alloy plating layer in this order and existing in an area surrounded by 5 straight lines of y=0.06875x-37.50000, y=0.00069x+78.79570, y=-0.00076x+21.43939, y=-0.03462x+86.53846 and x=25000 in a Ni and Zn total adhered amount-Ni ratio graph drown with x axis which is N amount (μg/dm) in a Ni-Zn alloy plating layer and y axis which is Ni percentage (%) exhibiting the Ni adhered amount (μg/dm) based on the total adhered amount of Ni and Zn (μg/dm).SELECTED DRAWING: Figure 1