Matrix connector

A matrix connector comprising:

• a first electrically insulative housing, said first electrically insulative housing comprising a plurality of terminal slots;
• a second electrically insulative housing connected to said first electrically insulative housing in a stack, said second electrically insulative housing comprising a plurality of terminal slots respectively axially set in communication with the terminal slots of said first electrically insulative housing, and a bottom receiving chamber;
• a springy return block mounted in the bottom receiving chamber of said first electrically insulative housing and supporting said first electrically insulative housing on said second electrically insulative housing;
• and
• a plurality of terminal sets mounted in the terminal slots of said first electrically insulative housing and said second electrically insulative housing, said terminal sets each comprising a terminal holder mounted in one terminal slot of said second electrically insulative housing and a movable terminal mounted in one terminal slot of said first electrically insulative housing, said movable terminal having a front contact portion suspended in a front end of the respective terminal slot of said first electrically insulative housing remote from said second electrically insulative housing and adapted for connecting to a respective solder ball of an integrated circuit, said terminal holder comprising two front clamping arms, which are clamped on said movable terminal in such a manner that said movable terminal is maintained electrically connected to said terminal holder and axially slidable relative to said terminal holder, and rear extension portion extended out of the respective terminal slot of said second electrically insulative housing and adapted for connecting to a circuit board.