Patent ID: 8764484

Claim:
An electrical connector comprising: an insulative housing; a plurality of contacts retained in the insulative housing; and a metallic shell enclosing the insulative housing, the metallic shell comprising a plurality of peripheral walls jointly forming a receiving cavity and a soldering tab extending from one of the peripheral walls to be soldered to a circuit board; wherein each of the soldering tab and the peripheral walls comprises an intermediate layer made of a first material, a first plating layer made of a second material, a second plating layer made of a third material and a third plating layer made of a fourth material, the third material being of robust soldering capability and the fourth material being of robust anti-wear capability; and wherein (i) the first plating layer covers both inner and outer sides of the intermediate layer of the soldering tab and the peripheral walls; (ii) the second plating layer covers both inner and outer sides of the first plating layer of the soldering tab and the peripheral walls; and (iii) the third plating layer covers both inner and outer sides of the second plating layer of the peripheral walls for enhancing anti-wear properties while leaving the second plating layer of the soldering tab uncoated for wetting.