Method for achieving the measuring slip of membrane probes
The present invention relates to a method for realizing the measuring slip of membrane probe, wherein: an elastomer layer is placed between the rigid acting surface of the membrane probe head and the membrane on which the probe is arranged; on the axial plane of the probe, the elastomer layer takes any axial line passing through the probe as a boundary line, and there is a difference between the thickness of one side and thickness of the other side, so that the probe can deflect during the test, resulting in the measuring slip to penetrate or push away the surface oxide of the tested chip and achieve more stable contact.
1. A method for realizing a measuring slip of a membrane probe, comprising:
deflecting the membrane probe during a test, wherein:
an elastomer layer is placed between a rigid acting surface of a membrane probe head and a membrane on which the membrane probe is arranged;
a boundary line extends along any axial line that both: (1) passes through both the elastomer layer and the membrane probe and (2) is perpendicular to the rigid acting surface; and
a first thickness of the elastomer layer on a first side of the boundary line is different from a second thickness of the elastomer layer on a second side of the boundary line opposite to the first side so that the membrane probe can deflect during the test, resulting in the measuring slip, wherein:
a groove is arranged on the rigid acting surface,
a groove wall is aligned with the boundary line, and
the elastomer layer is used to cover the whole rigid acting surface and fill the groove.
2. The method for realizing the measuring slip of the membrane probe according to claim 1 , wherein the rigid acting surface is designed as a bevel inclined relative to the boundary line with a side surface of the elastomer layer fitted with the bevel.
3. The method for realizing the measuring slip of the membrane probe according to claim 1 , wherein a thickness of the elastomer layer closer to a center of the rigid acting surface is greater than that on an outside of the rigid acting surface.
4. The method for realizing the measuring slip of the membrane probe according to claim 1 , wherein the boundary line coincides with an axial centerline passing through a center of the probe.