Abstract:
Systems and methods for rotational alignment of a device under test are disclosed herein. These systems include a chuck that includes a rotational positioning assembly that includes a lower section and an upper section that is configured to selectively rotate relative to the lower section about a rotational axis. The rotational positioning assembly further includes a first bearing that is configured to support a radial load between the upper section and the lower section and a second bearing that is configured to support a thrust load between the upper section and the lower section. The methods include providing a fluid stream to the second bearing to permit rotation of the upper section relative to the lower section, rotating the upper section relative to the lower section, and ceasing the providing the fluid stream to the second bearing to restrict rotation of the upper section relative to the lower section.
Abstract:
Shielded probe systems are disclosed herein. The shielded probe systems are configured to test a device under test (DUT) and include an enclosure that defines an enclosure volume, a translation stage with a stage surface, a substrate-supporting assembly extending from the stage surface, an electrically conductive shielding structure, an isolation structure, and a thermal shielding structure. The substrate-supporting assembly includes an electrically conductive support surface, which is configured to support a substrate that includes the DUT. The electrically conductive shielding structure defines a shielded volume. The isolation structure electrically isolates the electrically conductive shielding structure from the enclosure and from the translation stage. The thermal shielding structure extends within the enclosure volume and at least partially between the enclosure and the substrate-supporting assembly.
Abstract:
Shielded probe systems are disclosed herein. The shielded probe systems are configured to test a device under test (DUT) and include an enclosure that defines an enclosure volume, a translation stage with a stage surface, a substrate-supporting stack extending from the stage surface, an electrically conductive shielding structure, an isolation structure, and a thermal shielding structure. The substrate-supporting stack includes an electrically conductive support surface and a temperature-controlled chuck. The electrically conductive shielding structure defines a shielded volume. The isolation structure electrically isolates the electrically conductive shielding structure from the enclosure and from the translation stage. The thermal shielding structure extends within the enclosure volume and at least partially between the enclosure and the substrate-supporting stack.
Abstract:
In a method and a device for testing a test substrate under defined thermal conditions, a substrate that is to be tested is held by a temperature-controllable chuck and is set to a defined temperature; the test substrate is positioned relative to test probes by at least one positioning device; and the test probes make contact with the test substrate for testing purposes. At least one component of the positioning device that is present in the vicinity of the temperature-controlled test substrate is set to a temperature that is independent of the temperature of the test substrate by a temperature-controlling device, and this temperature is held constant.
Abstract:
Shielded probe systems are disclosed herein. The shielded probe systems are configured to test a device under test (DUT) and include an enclosure that defines an enclosure volume, a translation stage with a stage surface, a substrate-supporting assembly extending from the stage surface, an electrically conductive shielding structure, an isolation structure, and a thermal shielding structure. The substrate-supporting assembly includes an electrically conductive support surface, which is configured to support a substrate that includes the DUT. The electrically conductive shielding structure defines a shielded volume. The isolation structure electrically isolates the electrically conductive shielding structure from the enclosure and from the translation stage. The thermal shielding structure extends within the enclosure volume and at least partially between the enclosure and the substrate-supporting assembly.
Abstract:
Shielded probe systems are disclosed herein. The shielded probe systems are configured to test a device under test (DUT) and include an enclosure that defines an enclosure volume, a translation stage with a stage surface, a substrate-supporting stack extending from the stage surface, an electrically conductive shielding structure, an isolation structure, and a thermal shielding structure. The substrate-supporting stack includes an electrically conductive support surface and a temperature-controlled chuck. The electrically conductive shielding structure defines a shielded volume. The isolation structure electrically isolates the electrically conductive shielding structure from the enclosure and from the translation stage. The thermal shielding structure extends within the enclosure volume and at least partially between the enclosure and the substrate-supporting stack.
Abstract:
In a method and a device for testing a test substrate under defined thermal conditions, a substrate that is to be tested is held by a temperature-controllable chuck and is set to a defined temperature; the test substrate is positioned relative to test probes by at least one positioning device; and the test probes make contact with the test substrate for testing purposes. At least one component of the positioning device that is present in the vicinity of the temperature-controlled test substrate is set to a temperature that is independent of the temperature of the test substrate by a temperature-controlling device, and this temperature is held constant.