TESTING INTEGRATED CIRCUITS ON A WAFER USING A CARTRIDGE WITH PNEUMATIC LOCKING OF THE WAFER ON A PROBE CARD
    3.
    发明公开
    TESTING INTEGRATED CIRCUITS ON A WAFER USING A CARTRIDGE WITH PNEUMATIC LOCKING OF THE WAFER ON A PROBE CARD 审中-公开
    测试集成电路在晶片使用带有气动锁定在晶片托盘上的探针卡

    公开(公告)号:EP2122377A1

    公开(公告)日:2009-11-25

    申请号:EP08708988.4

    申请日:2008-02-14

    CPC classification number: G01R31/2889

    Abstract: A cartridge (125) is proposed for testing integrated circuits on a wafer (115) with the wafer that has a wafer front surface with a plurality of terminals of the integrated circuits. The cartridge includes a probe card (120), which has a card front surface with a plurality of probes (210) for contacting the terminals of the integrated circuits electrically, and a card back surface opposite the card front surface. Locking means (215,213,245,255) is provided for locking the wafer on the probe card. The locking means includes one or more through-holes (213) that cross the probe card from the card front surface to the card back surface; sealing means (215) is arranged on the card front surface around the probes (210) and the through-holes (213. In this way, a substantially airtight chamber (225) is defined by the probe card, the sealing means and the wafer (115) -when the wafer front surface abuts against the sealing means. Coupling means (213,245,255) is arranged on the card back surface. The coupling means is used to couple the cartridge with pneumatic means for creating a depression in the chamber, by removingair from the chamber through the through-holes; the same coupling means is also used to seal the airtight chamber when the cartridge is decoupled from the pneumatic means.

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