Abstract: An adapter for a measurement test instrument electrical probe has a flexible dielectric substrate with electrically conductive runs thereon. One end of the conductive runs has first electrical contacts with a pitch geometry corresponding to the pitch geormetry of electrical contacts of an electronic device that is electically connected to a substrate via the electrical contacts of the device. The other end of the conductive runs has second electrical contacts that have a pitch geometry compatible with the electrical probe of the measurement test instrument.

Abstract: An adapter for a measurement test instrument electrical probe has a flexible dielectric substrate with electrically conductive runs thereon. One end of the conductive runs has first electrical contacts with a pitch geometry corresponding to the pitch geometry of electrical contacts of an electronic device that is electrically connected to a substrate via the electrical contacts of the device. The other end of the conductive runs has second electrical contacts that have a pitch geometry compatible with the electrical probe of the measurement test instrument.

Abstract: An active electrical test probe with wideband frequency capability for use on a test probe card, along with other test probes. A small hybrid integrated circuit is mounted on a substrate held on edge, adjacent the probe tip contact element of the probe, by a conductive metal clip. The circuit is provided power from an external source. Signals received by the probe tip are transmitted, as modified by the hybrid integrated circuit, through an output cable to electronic test equipment.

Abstract: A probe for use in electrical circuit test equipment, in which a contact element is longitudinally slidable in an insulator sleeve which also contains an R-C attenuator circuit connected electrically to the contact element by an electrically conductive elastomeric material. A high impedance cable is connected electrically to the other end of the RC attenuator circuit by another piece of conductive elastomeric material. The cable connects the attenuator to another R-C circuit which, together with the attenuator, forms a voltage divider, and the attenuated signal controls an amplifier which provides a signal through a low impedance cable to a test equipment.