发明名称 |
PROBE CARD WITH BALANCED LATERAL FORCE |
摘要 |
<p>A novel method and structure for counter-balancing a lateral force exerted by a probe card onto a device under test ("DUT") is disclosed. Many DUTs (particularly memory devices) are tested in parallel (i.e., many die at a time) and have unequal numbers of contact pads on top vs. bottom and/or right vs. left sides of the die. The probe card used to test the DUT would necessarily have an uneven distribution of probes that match the contact pads and, as a consequence, may exert a net lateral force on the DUT. By manipulating the individual characteristics of the individual probes, a probe card may be constructed that zeroes the lateral force. Characteristics such as the direction and stiffness of the individual probes can be varied to zero the net lateral force.</p> |
申请公布号 |
WO2008008065(A1) |
申请公布日期 |
2008.01.17 |
申请号 |
WO2006US27272 |
申请日期 |
2006.07.13 |
申请人 |
TOUCHDOWN TECHNOLOGIES, INC. |
发明人 |
LU, SHAONING;NIM, TEA;MELVIN, KHOO |
分类号 |
G01R31/02 |
主分类号 |
G01R31/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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