摘要:
Embodiments of reinforced resilient elements and methods for fabricating same are provided herein. In one embodiment, a reinforced resilient element includes a resilient element configured to electrically probe a device to be tested, the resilient element having a first end and an opposing second end; and a reinforcement member having a first end affixed to the resilient element at the first end thereof or at a point disposed between the first and the second ends of the resilient element, an opposing second end disposed in a direction towards the second end of the resilient member, and a resilient portion disposed between the first and second ends, wherein the resilient portion is not affixed to the resilient member.
摘要:
An electrical element can be attached and electrically connected to a substrate by a conductive adhesive material. The conductive adhesive material can electrically connect the electrical element to a terminal or other electrical conductor on the substrate. The conductive adhesive material can be cured by directing a flow of heated gas onto the material or by heating the material through a support structure on which the substrate is located. A non-conductive adhesive material can attach the electrical element to the substrate with a greater adhesive strength than the conductive adhesive. The non-conductive adhesive material can also be cured by directing a flow of heated gas onto the material or by heating the material through the support structure on which the substrate is located. The non-conductive adhesive material can cover the conductive adhesive material.
摘要:
The present invention discloses a method and system compensating for thermally induced motion of probe cards used in testing die on a wafer. A probe card incorporating temperature control devices to maintain a uniform temperature throughout the thickness of the probe card is disclosed. A probe card incorporating bi-material stiffening elements which respond to changes in temperature in such a way as to counteract thermally induced motion of the probe card is disclosed including rolling elements, slots and lubrication. Various means for allowing radial expansion of a probe card to prevent thermally induced motion of the probe card are also disclosed. A method for detecting thermally induced movement of the probe card and moving the wafer to compensate is also disclosed.
摘要:
A probe apparatus can include a substrate, a contact structure attached to the substrate, and an electronic component electrically connected to the contact structure. The electronic component can be attached to the contact structure.
摘要:
A probe card assembly can include an insert holder configured to hold a probe insert, which can include probes disposed in a particular configuration for probing a device to be tested. The probe card assembly can provide an electrical interface to a tester that can control testing of the device, and while attached to the probe card assembly, the insert holder can hold the probe insert such that the probe insert is electrically connected to electrical paths within the probe card assembly that are part of the interface to the tester. The probe insert of the probe card assembly can be replaced by detaching the insert holder, replacing the probe insert with a new probe insert, and then reattaching the insert holder to the probe card assembly. The probe insert and holder can be integrally formed and comprise a single structure that can be detached from a probe card assembly and replaced with a different probe insert and holder.
摘要:
Products and assemblies are provided for socketably receiving elongate interconnection elements (516), such as spring contact elements, extending from electronic components (518), such as semiconductor devices. Socket substrates (504) are provided with capture pads (506) for receiving ends of elongate interconnection elements (516) extending from electronic components (518). Various capture pad configurations are disclosed. A securing device such as a housing (520) positions the electronic component securely to the socket substrate (504). Connections to external devices are provided via conductive traces (510) adjacent the surface of the socket substrate. The socket substrate (504) may be supported by a support substrate (502). In a particularly preferred embodiment the capture pads are formed directly on a primary substrate such as a printed circuit board.
摘要:
The invention relates to an electronics system comprising a first integrated circuit (112(i), 600, 604) including a first electromagnetic coupler (118(i), 601, 602), and a second integrated circuit (112(i), 600, 604) including a second electromagnetic coupler (118(i), 601, 602). According to the invention said first integrated circuit and said second integrated circuit are disposed such that said first electromagnetic coupler and said second electromagnetic coupler are spaced from each other but within sufficient proximity to be electromagnetically coupled, whereby data provided to said first electromagnetic coupler is contactlessly communicated to said second electromagnetic coupler.
摘要:
A system is provided to enable leakage current measurement or parametric tests to be performed with an isolation buffer provided in a channel line. Multiple such isolation buffers are used to connect a single signal channel to multiple lines. Leakage current measurement is provided by providing a buffer bypass element, such as a resistor or transmission gate, between the input and output of each buffer. The buffer bypass element can be used to calibrate buffer delay out of the test system by using TDR measurements to determine the buffer delay based on reflected pulses through the buffer bypass element. Buffer delay can likewise be calibrated out by comparing measurements of a buffered and non-buffered channel line, or by measuring a device having a known delay.
摘要:
A probe card apparatus is configured to have a desired overall amount of compliance. The compliance of the probes of the probe card apparatus is determined, and an additional, predetermined amount of compliance is designed into the probe card apparatus so that the sum of the additional compliance and the compliance of the probes total the overall desired compliance of the probe card apparatus.
摘要:
A wafer test assembly includes multiple probe head substrates arranged like tiles with connectors attached to one side and probes supported on the opposing side. In one embodiment, flexible cable connectors directly connect the connectors on the probe head tile to a test head, while in another embodiment the flexible cables connect the probe head tile to a PCB providing horizontal routing to test head connectors. In one embodiment, leveling pins provide a simplified support structure connecting to a retaining element attached to the tiles to provide for applying a push-pull leveling force. A test head connector interface frame enables rearrangement of connectors between the test head and the probe card to provide for both full wafer contact or partial wafer contact. The test head connectors are rearranged by being slidable on rails, or pluggable and unpluggable enabling movement over a range of positions.