Invention Grant
US08456184B2 Probe card for a semiconductor wafer 有权
半导体晶圆探针卡

Probe card for a semiconductor wafer
Abstract:
A probe card is provided that is capable of accurately ensuring the flatness and the parallelism with respect to a predetermined reference surface. A point (Q) of application of force applied from a leaf spring (17) that presses a portion near an edge portion of a surface of a probe head (15) from which a plurality of probes projects over an entire circumference in a direction of a substrate to the probe head (15) is positioned inside of an outer edge of the probe head (15), and a point (P) of application of force applied from the retainer (16) that presses a portion near an edge portion of a space transformer (14) over an entire circumference in the direction of the substrate to the space transformer (14) is positioned inside of an outer edge of the space transformer (14).
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