Abstract:
A sample container motion device is disclosed which may include a guide having a main channel, the main channel including at least one bearing channel; a carriage configured to move within the main channel of the guide, the carriage having at least one bearing groove corresponding to the at least one bearing channel; a slide system configured to enable linear movement between the carriage and the guide, the slide system including at least one bearing guide located in between each bearing groove and its corresponding bearing channel; wherein each bearing guide may include a plurality of ball bearings; a ball spacer having openings for the ball bearings and configured to confine centers of the ball bearings in a fixed relation to a structure of the spacer.
Abstract:
The present invention relates to a probe tip assembly for testing of integrated circuits or other microelectronic devices. The probe tip assembly may include a plurality of independently flexible contact fingers extending from a support, each contact finger spaced apart from the other contact fingers, and each contact finger terminating in free space at an end distal from the support. A probe may be constructed by attaching the free ends of the contact fingers to electrical contacts on a circuit board and then removing the support from the contact fingers.
Abstract:
Embodiments disclosed herein provide a system, method, and computer program product for providing network access control for a shared network. One embodiment of a network access controller may intercept a request to access a network resource from a browser application running on a client device associated with an anonymous user and determine whether the network resource is in a set of network destinations in the shared network. If the network resource is in the set of network destinations, the network access controller may direct the browser application to the network resource. If the network resource is not in the set of network destinations, the network access controller may redirect the browser application to a pre-authentication capture destination in the shared network. From the pre-authentication capture destination the anonymous user is free to visit any of the set of network destinations in the shared network without authentication.
Abstract:
A test site is incorporated on a circuit board having a set of test connections passing through a test via on respective test connection layer, the test connection layers including (1) a first layer adjacent to a target layer, and (2) a second layer spaced apart from the target layer with the first layer therebetween. The test via is back-drilled from the direction of the second layer to remove undesired via metallization, breaking the test connections of all the layers through which it passes, and the continuity of the test connections is measured to determine a pattern of broken and non-broken test connections resulting from the back-drilling. The pattern of broken and non-broken test connections is examined to ascertain the actual depth of the back-drilling in relation to the target layer.
Abstract:
A vial and impactor combination for use in a cryogenic mill is disclosed. The impactor includes a steel or similar core, and a surrounding exterior of polycarbonate or similar inert material. The vial is made preferably of polycarbonate with endcaps also made of polycarbonate.
Abstract:
An adjustable trowel for spreading material on a surface includes a trowel plane and a post extending from the trowel plane. A mechanism for selectively attaches a handle to the post in either a left-handed orientation or a right-handed orientation relative to the trowel plane.
Abstract:
A probe for measuring the electrical characteristics of integrated circuits or other microelectronic devices at high frequencies may include a dielectric substrate that supports a signal path interconnecting test instrumentation and a probe tip and a ground path that shields both the signal path and the probe tip.