Electrical assembly having shielded structural sub-parts.

摘要

Sub-parts located within an electronic assembly are electroplated with an alloy of nickel and iron to shield the interior regions of such sub-parts from external magnetic fields or to confine the effect of internal magnetic fields to those regions. The alloy formed on the sub-part comprises 80 parts by weight nickel and 20 parts by weight iron. This alloy results from immersion of the sub-part in a bath which is 12-14 parts nickel and 1 part iron by weight and which includes a brightener which is 4% by volume.