Abstract:
A method and apparatus for identifying a location of a short between two or more signal lines on a substrate having a plurality of thin film transistors and a plurality of pixels associated with the thin film transistors. The method includes locating the two or more signal lines having the short, locating one or more defective pixels disposed between the two or more signal lines having the short, and identifying the defective pixels as the location of the short.
Abstract:
A clutch lever arrangement for a clutch, especially for a commercial motor vehicle clutch, having a clutch lever pivotably supported on a bearing point on a stationary component. The lever has a force-application section for introducing an actuating force by way of an actuating element and a force-transmission section for transmitting the actuating force to a clutch-release bearing, which is mounted with freedom to slide axially back and forth in the pivot plane of the clutch lever. To reduce undesirable vibrations of the clutch lever, the lever is guided in its pivot plane by a guide means.
Abstract:
An improved prober for an electronic devices test system is provided. The prober is “configurable,” meaning that it can be adapted for different device layouts and substrate sizes. The prober generally includes a frame, at least one prober bar having a first end and a second end, a frame connection mechanism that allows for ready relocation of the prober bar to the frame at selected points along the frame, and a plurality of electrical contact pins along the prober bar for placing selected electronic devices in electrical communication with a system controller during testing. In one embodiment, the prober is be used to test devices such as thin film transistors on a glass substrate. Typically, the glass substrate is square, and the frame is also square. In this way, “x” and “y” axes are defined by the frame. The electrical pins may be movable along the axial length of the prober bars, or may be selectively pushed down to contact selected contact pads on the substrate.
Abstract:
A release mechanism for actuating a friction clutch is concentric to a center axis of a guide sleeve mounted in turn on a transmission shaft. The release mechanism includes a clutch release bearing and a device for compensating for the tilt of the center axis of the friction clutch with respect to the center axis of the guide sleeve and/or for the wobbling eccentricity of the release spring. The clutch release bearing includes an inner ring, an outer ring, and an adjusting sleeve. One of the inner ring or outer ring communicates with a release spring of the friction clutch. The device for compensating for the tilt of the center axis of the friction clutch with respect to the center axis of the guide sleeve and/or for the wobbling eccentricity of the release spring includes a release ring and a load ring. The release ring is in contact with a finger of the release spring of the friction clutch and includes a spherical surface having a center on the axis of the transmission shaft. A load ring cooperates with the spherical surface of the release ring and communicates with the adjusting sleeve for placing the one of the inner ring and outer ring in communication with the release spring. Preferably the release ring is curved and the load ring is a circular cross-sectioned wire to reduce wear.
Abstract:
The invention relates to a method as well as to apparatus for testing the function of microstructure elements, wherein the microstructure element is driven for testing the emission and/or mechanical properties and the corpuscles emitted or reflected by it are detected and evaluated.
Abstract:
Method for particle beam testing of substrates for liquid crystal displays (LCD). This is directed to methods wherein, given a substrate (SUB1) for a liquid crystal display, either potentials or, respectively, currents are set in defined fashion with a particle beam (S1, S2 and S4) and/or potentials are measured by detecting secondary electrons (S5) at different switch statuses of the switch elements (T) of the substrate (SUB1). The geometrical integrity and the electrical functionability of the substrate (SUB1) are thereby tested, even though, for example, a supplementary plane electrode is not present for forming a capacitor. An important advantage of the method is that faulty substrates can be repaired or can be segregated even before further-processing and, thus, costs can be reduced.
Abstract:
To measure high frequency signal curves at nodes and interconnections of integrated circuits and achieve a good chronological resolution in accordance with the sampling method, extremely short primary electron pulses are used. For such extremely short pulse widths obtainable with beam blanking systems, only individual statistically appearing secondary electrons are registered per pulse, these electrons generating current pulses having different amplitudes and different time behaviors at the output of an energy analyzer. It is proposed that the number of current pulses occurring at the output of the energy analyzer within a prescribed time interval be identified and the quotient, or ratio, thereof, be kept constant with the assistance of a feedback circuit for connection to the voltage of a retarding field electrode. The feedback circuit includes a pulse counter, a digital-to-analog converter, and a spectrometer drive.
Abstract:
The invention relates to means and methods for the biomethanation of H2 and CO2. In particular, the invention relates to devices for producing methane by means of methanogenic microorganisms by converting H2 and CO2, wherein the devices comprise at least one reactor, an aqueous medium, which is provided in the at least one reactor, wherein the methanogenic microorganisms are contained in the aqueous medium, a feeding apparatus, which is designed to introduce H2 and CO2 into the at least one reactor, wherein H2 and CO2 form a gaseous mixture therein, and a reaction-increasing device, which is designed to enlarge the contact surface between the aqueous medium having the methanogenic microorganisms and the gaseous mixture. The invention further relates to methods for producing methane in a reactor device by means of methanogenic microorganisms.
Abstract:
An apparatus for testing of a plurality of electronic devices on a flexible substrate is described. The apparatus includes at least two rollers configured for guiding the flexible substrate into a testing area along transport direction, at least one prober configured for electrically contacting one or more of the electronic devices, at least one probing support configured for supporting a portion of the flexible substrate during electrical contact with the at least one prober, and a test device for functional testing of one or more of the electronic devices.
Abstract:
Embodiments of the invention relate to methods and apparatus for minimizing electrostatic discharge in processing and testing systems utilizing large area substrates in the production of flat panel displays, solar panels, and the like. In one embodiment, an apparatus is described. The apparatus includes a testing chamber, a substrate support disposed in the testing chamber, the substrate support having a substrate support surface, a structure disposed in the testing chamber, the structure having a length that spans a width of the substrate support surface, the structure being linearly movable relative to the substrate support, and a brush device having a plurality of conductive bristles coupled to the structure and spaced a distance away from the substrate support surface of the substrate support, the brush device electrically coupling the support surface to ground through the structure.