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US 5,470,247 AGranted
Burn-in socket apparatus
AssigneeTexas Instruments Incorporated
InventorMasahiro Fuchigami
Life of this patent
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AssigneeTexas Instruments Incorporated
InventorMasahiro Fuchigami
Estimating the term…
A burn-in socket is shown including a latch member (60) capable of moving leads (101) of an IC package (100) received on a seat (200) on a base member (20), biasing the leads into engagement with movable contact arms (212) of contacts (21) mounted in the base member. A linking mechanism (50), movable in dependence upon the vertical movement of a cover member (30), transmits the cover member movement to latch member (60). Linking mechanism (50) has an arm (52) pivotably connected at one end to the cover member (30) and at an opposite end to a lever body (54) intermediate opposite ends thereof. The lever body has one end pivotably connected to base member (20) and its opposite end connected to latch member (60). A return spring (40) places a bias on the cover to maintain it normally separated from the base member and provides a selected contact force. The socket can be used with a wide variety of IC package types either before or after leads extending from the IC package have been formed.
A socket comprising a base member with a plurality of contact elements being mounted around an IC package receiving seat formed on the base member, the contact elements each having a main body and a movable contact arm extending therefrom, a cover member vertically movable toward and away from the base member from a position adjacent to the base member to a position removed from the base member at a fully extended return position, a spring biasing the cover member away from the base member, a latch member capable of moving the leads of an IC package received on the IC package receiving seat in the direction of engaging the movable contact arms of corresponding contact elements in dependence upon the movement of the cover member and a motion transfer mechanism which moves in dependence upon the movement of the cover member, the motion transfer mechanism coupled to the latch member to move the latch member toward and away from the contact arms, said movable contact arms of said contact elements only movable by movement action of said latch member moving said leads of the IC package.
Socket apparatus for receiving an integrated circuit package having a plurality of leads extending therefrom comprising a base member having an integrated circuit package receiving seat formed thereon, the base member mounting a plurality of contact elements arranged in a selected array, the contact elements each having a main body portion mounted in the base member, a terminal portion extending downwardly from the body portion to a point below the base member and a movable contact arm extending upwardly toward the integrated circuit package receiving seat,
Dependencies are inferred from the claim text.