Patent ID: 6573458
Filing Date: 2003-06-03
Classification: H01L,H05K

Abstract:
A printed circuit board comprising a board member and a plurality of ball-shaped terminals provided on a major surface of said board member, said ball-shaped terminals each comprising:a pad disposed on said major surface of said board member; a full spherical metallic ball adapted to be engaged by a socket terminal formed by a pair of ball receiving members which, taken together, are of a semispherical form; a brazing metal brazing said metallic ball onto said pad; and a gold plating layer formed on a surface of said metallic ball, the metallic ball being made of a material preventing deformation of said ball-shaped terminal such as would otherwise result from insertion into a socket terminal of a motherboard, and the metallic ball having a diameter greater than that of the pad and being brazed on the pad substantially coaxially therewith.