Abstract:
A clip comprises two pieces of load plates. Each load plate has a pressing portion extending downwardly in a middle position thereof and two retention portions at two ends thereof, the two pieces of load plates across dispose when the load plates are secured.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention The present invention relates to an electrical connector assembly, and more particularly to an electrical connector assembly with a clip for securing an electronic package mounted within the socket assembly. 
         [0002]    2. Description of the Prior Art 
         [0003]    Electrical connectors typically used for electrically connecting an electronic package and a printed circuit board generally comprise an insulative housing, a plurality of contacts received in the insulative housing and a fasten device. The fasten device comprises a stiffener, a load plate pivotally mounted to one end of the stiffener and a lever pivotally mounted to the other end of the stiffener. The load plate is adapted to press the electronic package toward the insulative housing and the lever is used to lock the load plate to the stiffener. However, the lever and the load plate operation need big room, so this type electrical connector can be applied to a desktop and impossible to apply to a notebook. 
         [0004]    Notebook usually uses the other load plate to fasten the electronic package to the insulative housing as referring to  FIG. 1 .  FIG. 1  shown a load plate  2  is substantially rectangular configuration and has two parallel plate-form springs  21  to fasten and press the electronic package mounted to the insulative housing. Because an elasticity coefficient of the parallel plate-form springs  21  is great, so they will easy deformation. Accordingly, if the load plate  2  bears bigger force, they will deformation bigger, hence, we must limit the force that exert to the load plate  2  to avoid the load plate  2  deformation. 
         [0005]    Therefore, there is need to supply an improved electrical connector assembly with a clip mechanism. 
       SUMMARY OF THE INVENTION 
       [0006]    Accordingly, an object of the present invention is to provide an electrical connector assembly with a clip which can exert a downward force to the electronic package and not easy deformation. 
         [0007]    In order to achieve the object set forth, a clip adapted to physically in contact with an electronic package disposed on a electrical connector comprises two pieces of load plates. Each load plate has a pressing portion extending downwardly in a middle position thereof and two retention portions at two ends thereof, the two pieces of load plates across dispose when the load plates are secured. 
         [0008]    In order to further achieve the object set forth, an electrical connector assembly for securing an electronic package, comprising an electrical connector with an insulative housing for receiving the electronic package and a clip. The clip comprises two folded load plates and disposes upon the electrical connector for generating a downward force. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0009]      FIG. 1  is a perspective view of a conventional electrical connector assembly; 
           [0010]      FIG. 2  is an exploded view of an electrical connector assembly in accordance with the present invention; and 
           [0011]      FIG. 3  is an assembled view of the electrical connector assembly shown in  FIG. 2 . 
       
    
    
     DESCRIPTION OF PREFERRED EMBODIMENT 
       [0012]    Reference will now be made to the drawings to describe the present invention in detail. 
         [0013]    Referring to  FIG. 1  and  FIG. 2 , an electrical connector assembly of the present invention used to connect an electronic package  7  and a printed circuit board  4  comprises an insulative housing  5 , a plurality of contacts (not labeled) received in the insulative housing  5  and a clip  6  adapted to exert a force to the electronic package  7 . The electronic package  7  generally includes a substrate  71  with a die  72  in a middle portion thereof. 
         [0014]    The insulative housing  5  is substantially rectangular and defines a cavity  501  in an upper surface thereof. A plurality of contacts disposes in the cavity  501  as in a matrix. The contacts contact with the electronic package  7  by being pressed in a top end thereof and are soldered to the printed circuit board  4  in a bottom end thereof. 
         [0015]    The clip  6  has two independent load plates. Each load plate is substantially rectangular and comprises two retention portions  61  disposed at two ends thereof, a pressing portion  63  in a middle thereof and two oblique connecting portions  62  connecting the retention portions  61  and the pressing portion  63 . The retention portion  61  bends downwardly firstly and then bends inwardly and forms a transition portion  610  and a supporting portion  611  for contacting the printed circuit board  4 . The retention portion  610  has a hole  612  passing therethrough adapted to secure the clip  6  to the printed circuit board  4 . The pressing portion  63  is located in a horizontal plane and connects with a lower end of the connecting portion  62 . The pressing portion  63  has an opening  631  in the middle thereof. 
         [0016]    In assembly, first, put one load plate upon the electronic package  7  which had been mounted in the insulative housing  5 , then put the other load plate crossed to the first load plate and align with the openings  631 . Second, secure the two load plates to the printed circuit board  4  by screws  3 . In that condition, the pressing portion  63  generates a loading force to the die  72  of the electronic package  7  and the opening  631  of the pressing portion  63  can dissipate heat for the electronic package  7 . 
         [0017]    The present invention use two load plates as a clip to fasten the electronic package  7  to the insulative housing  5  and dissipate heat for the electronic package  7 . The two load plates fold/cross together have a small elasticity coefficient than the conventional load plate. Thus, the load plate generates a small deformation. Because the load plate has good deformation resistance, so the load plate can bearing bigger force generating by a heat sink or other device, and could not press the electronic package  7  excessively. The two load plate can be made of the same material or different materials. The different materials could change the elasticity coefficient of the load plates. 
         [0018]    Although the present invention has been described with reference to particular embodiments, it is not to be construed as being limited thereto. Various alterations and modifications can be made to the embodiments without in any way departing from the scope or spirit of the present invention as defined in the appended claims.