Abstract: A connector assembly for removing static electricity generated in high-speed communication cable as a result of tribocharging is described. The invention is realized with a typical high-speed cable having a connector provided with a dissipative medium and at least one conductive pad. Static electricity on the jacket material of the cable induces a charge in the cable wires, which is bled to the pads via the dissipative medium. The charge on the pad is then grounded prior to or as the cable is connected to a cable jack.

Abstract: A connector assembly for removing static electricity generated in high-speed communication cable as a result of tribocharging is described. Damage to components such as integrated circuits which are sensitive to electrostatic discharge is thereby prevented. The invention is realized with a typical high-speed cable having a connector with one or more conductive first terminals, each of which terminates a conducting wire in the cable. The connector is provided with one or more conductive and a dissipative medium which electrically connects the first terminals and pads. Static electricity on the jacket material of the cable induces a charge in the cable wires, which is bled from the first terminals to the pads via the dissipative medium.

Abstract: This invention relates to an antenna for use in detecting electromagnetic noise radiation in which a high frequency, asymmetric signal has been generated. The invention relates to a loop antenna design which uses two loops that are run in opposite direction to each other, thereby resulting in two out-of-phase signals being detected in the loops which are then combined as the antenna output.

Abstract: Detection of the existence, magnitude, and frequency of occurrence of a plurality of ESD events is achieved by using an envelope detector to process signals generated by ESD events and received by an antenna. The ESD event detector includes an antenna for producing a signal waveform in response to electromagnetic fields incident thereupon, a demodulator coupled to the antenna for generating an envelope waveform that is related to the envelope of the signal waveform, a threshold window discriminator coupled to the demodulator for generating an indication signal if the envelope detected by the demodulator has a magnitude between a first and a second threshold, and a counter coupled to the threshold window discriminator for counting the number of indication signals received from the threshold window detector.

Abstract: Herein disclosed is a noncontact, nondestructive method for monitoring the quality of a high energy weld, e.g., laser beam weld. In accordance with the proposed method, an acoustic sensor (32) is positioned at a distance from the welding zone (34) and picks up airborne acoustic emission signals (33) associated with the laser welding process. These acoustic signals, propagating through the air space between the welding zone (34) and the sensor (32), are detected and analyzed (36,37) to determine the quality of the weld (FIG. 3).

Abstract: An automatic pull tester and an acoustic emission system are herein combined to analyze the failure modes of lead frames bonded to integrated circuits. By using a discriminant analysis technique, a specific failure mode can be determined in real-time by first measuring up to five variables during the pulling operation. The five variables that may be measured comprise acoustic emission signals of a first amplitude (AE1), acoustic emission signals of a second amplitude (AE2), the time elapsed until failure (.DELTA.t), the number (n) of acoustic emission bursts above a first threshold, to the peak pulling force at failure (L.sub.max). Next, the variables measured are incorporated into a plurality of predetermined functions, each function corresponding to one failure mode (FM1 to FM5). The failure mode of the bond is determined by selecting the function having the highest value (FIG. 4).

Abstract: As leads that have been thermocompressively bonded to ceramic substrates are pulled to destruction, stress waves are monitored and counted. The total count is compared to empirically developed ranges associated with known failures to determine the failure mode (e.g., lead failure, gold-to-gold failure, ceramic pullout).

Abstract: The disclosure is directed to a technique for monitoring signals emanating from a ceramic article (10) during a soldering operation. In order to determine whether the signals are stress wave emissions (SWE's) or noise the number of pulses (41) of the monitored signal having an amplitude exceeding a preset threshold (51), during a period of time, are counted. A count (62) proportional to the area under the envelope of the detected signal during the period of time is also made. A ratio of the count related to the area under the envelope to the pulse count is formed and compared to an empirically developed range of ratios which are indicative of a stress wave emission signal.