Burn-in socket

#1. Field of the Invention

#The present invention relates to a burn-in socket, and more particularly to a burn-in socket mounted on a printed circuit board (PCB) for testing an IC package.

#2. Description of Prior Art

#Other objects, advantages and novel features of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which:

#FIG. 1 is an assembled, perspective view of a burn-in socket in accordance with a preferred embodiment of the present invention;

#FIG. 2 is an exploded, perspective view of the burn-in socket shown in FIG. 1;

#Referring to FIGS. 1-2, a burn-in socket 1 in accordance with a preferred embodiment of the present invention is generally mounted to a printed circuit board (not shown) to receive and test an IC package (not shown). The burn-in socket 1 includes a socket body 2, a plurality of contacts 4 mounted to the socket body 2, and an actuator 3 movably mounted upon the socket body 2. The IC package is put into the socket body 2 to be tested.

#Referring to FIGS. 3-4, the contact 4 includes a middle base portion 40, a pair of testing arms respectively extending upwardly from the base portion 40, and a tail portion 43 extending downwardly from the base portion 40. The pair of testing arms includes a fixed ram 41 with a linear configuration and a moving arm 42 movable relative to the stationary arm 41. The top ends of the testing arms are respectively formed with tip portions so as to jointly clip one solder ball 80 (shown in FIG. 4) of the IC package in a first direction.

#Particularly referring to FIGS. 2-4, the socket body 2 includes a base 20, a positioning frame 24 received in the base 20, a sliding plate 21 disposed on the positioning frame 24, a bottom plate 22 fixed to bottom side of the base 20, and a pair of locking elements 23 to jointly lock the IC package loaded on the sliding plate 21. The bottom plate 22, the base 20, and the sliding plate 21 respectively define a plurality of pin holes 220, 200, 210, extending therethrough for the contacts 4 passing through. The base portion 40 is retained in the pin holes 200 of the base 20, and the tip portions extend out of the pin holes 210 of the sliding plate 21, while the tail portion 43 extends downwardly and out of the pin hole 220 of the bottom plate 22.