Electrical connectors capable of being mounted on circuit substrates by
BGA techniques are disclosed. Also, disclosed is a method of
manufacturing such connectors. There is at least one recess on the
exterior side of the connector elements. A conductive contact extends
from adjacent the interior side into the recess on the exterior side of
the housing. A controlled volume of solder paste is introduced into the
recess. A fusible conductive element, in the form of solder balls is
positioned in the recess. The connector is subjected to a reflow process
to fuse the solder ball to the portions of the contact extending into
said recess. Contacts are secured in the insulative housing of the
connector by deformable sections that minimize stress imposed on the
central portions of the contacts to promote uniformity of solder volume.