摘要:
Embodiments of resilient contact elements and methods for fabricating same are provided herein. In one embodiment, a resilient contact element for use in a probe card includes a lithographically formed resilient beam having a first end and an opposing second end; and a tip disposed proximate the first end of the beam and configured to break through an oxide layer of a surface of a device to be tested to establish a reliable electrical connection therewith; wherein at least a central portion of the beam has a continuous sloped profile defining, in a relaxed state, a height measured between the beam and a plane representing an upper surface of a device to be tested that is greater near the second end of the beam than near the first end of the beam.
摘要:
An electrically conductive contact element can include a first base and a second base with elongate, spaced apart leaves between the bases. A first end of each leaf can be coupled to the first base and an opposite second end of the leaf can be coupled to the second base. A body of the leaf between the first end and the second end can be sufficiently elongate to respond to a force through said contact element substantially parallel with the first axis and the second axis by first compressing axially while said force is less than a buckling force and then bending while said force is greater than the buckling force.
摘要:
An electrically conductive contact element can include a first base and a second base with elongate, spaced apart leaves between the bases. A first end of each leaf can be coupled to the first base and an opposite second end of the leaf can be coupled to the second base. A body of the leaf between the first end and the second end can be sufficiently elongate to respond to a force through said contact element substantially parallel with the first axis and the second axis by first compressing axially while said force is less than a buckling force and then bending while said force is greater than the buckling force.
摘要:
Embodiments of resilient contact elements and methods for fabricating same are provided herein. In one embodiment, a resilient contact element for use in a probe card includes a lithographically formed resilient beam having a first end and an opposing second end; and a tip disposed proximate the first end of the beam and configured to break through an oxide layer of a surface of a device to be tested to establish a reliable electrical connection therewith; wherein at least a central portion of the beam has a continuous sloped profile defining, in a relaxed state, a height measured between the beam and a plane representing an upper surface of a device to be tested that is greater near the second end of the beam than near the first end of the beam.
摘要:
Devices and methods for providing, making, and/or using an electronic apparatus having a wall structure adjacent a resilient contact structure on a substrate. The electronic apparatus can include a substrate and a plurality of electrically conductive resilient contact structures, which can extend from the substrate. A first of the contact structures can be part of an electrical path through the electronic apparatus. A first electrically conductive wall structure can also extend from the substrate, and the first wall structure can be disposed adjacent one of the contact structures. The first wall structure can be electrically connected to a return current path within the electronic apparatus for an alternating current signal or power on the first contact structure.
摘要:
Embodiments of methods and apparatus for aligning a probe card assembly in a test system are provided herein. In some embodiments, an apparatus for testing devices may include a probe card assembly having a plurality of probes, each probe having a tip for contacting a device to be tested, and having an identified set of one or more features that are preselected in accordance with selected criteria for aligning the probe card assembly within a prober after installation therein. In some embodiments, the identity of the identified set of one or more features may be communicated to the prober to facilitate a global alignment of the probe card assembly that minimizes an aggregate misalignment of all of the tips in the probe card assembly.
摘要:
Embodiments of methods and apparatus for aligning a probe card assembly in a test system are provided herein. In some embodiments, an apparatus for testing devices may include a probe card assembly having a plurality of probes, each probe having a tip for contacting a device to be tested, and having an identified set of one or more features that are preselected in accordance with selected criteria for aligning the probe card assembly within a prober after installation therein. In some embodiments, the identity of the identified set of one or more features may be communicated to the prober to facilitate a global alignment of the probe card assembly that minimizes an aggregate misalignment of all of the tips in the probe card assembly
摘要:
Devices and methods for providing, making, and/or using an electronic apparatus having a wall structure adjacent a resilient contact structure on a substrate. The electronic apparatus can include a substrate and a plurality of electrically conductive resilient contact structures, which can extend from the substrate. A first of the contact structures can be part of an electrical path through the electronic apparatus. A first electrically conductive wall structure can also extend from the substrate, and the first wall structure can be disposed adjacent one of the contact structures. The first wall structure can be electrically connected to a return current path within the electronic apparatus for an alternating current signal or power on the first contact structure.
摘要:
A probe card assembly can comprise a probe head assembly and a wiring substrate. The probe head assembly can comprise a plurality of probes disposed to contact an electronic device disposed on a holder in a test housing. The wiring substrate can include an electrical interface to a test controller and a plurality of electrical wiring composing electrical paths between the electrical interface and ones of the probes, and the wiring substrate can comprise a first portion on which the electrical interface is disposed and a second portion composing the probe head assembly. The second portion of the wiring substrate can be moveable with respect to the first portion of the wiring substrate.
摘要:
A probe card assembly can comprise a first source of compliance and a second source of compliance. The probe card assembly can further comprise a controller, which can be configured to apportion a total compliance demand placed on the probe card assembly between the first source of compliance and the second source of compliance.