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5216361 |
Modular board test system having wireless receiver
A modular ATE system includes a plurality of test modules and a receiver for use with a variety of fixtures to which printed circuit boards are to be coupled. Each test module includes a plurality...
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5204616 |
In-circuit test fixture for leaded packages
An in-circuit test probe apparatus for probing the finely and closely spaced leads of an LSI circuit package in order to monitor the signals on the pins. A magnetic holding assembly is utilized to...
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5202622 |
Adapter and test fixture for an integrated circuit device package
A test fixture for a high pin count surface mounted IC device has a test head assembly connected to an adapter having electrically conductive elements that couple the output of the IC device to...
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5196789 |
Coaxial spring contact probe
An improved spring loaded contact probe for testing printed circuit boards, electronic components, and substrates includes a center conductor, or wire, at least one outer layer of dielectric...
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5192908 |
Semiconductor device testing apparatus with positioning mechanism
An apparatus for bringing probe pins of a probe head into contact with electrode terminals of an IC chip to test electrical characteristics of the device is provided. This apparatus includes a test...
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5175493 |
Shielded electrical contact spring probe assembly
A shielded electrical contact spring probe assembly for testing electrical printed circuit boards includes an outer barrel having an open end and a remote end, an inner core of dielectric material...
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5166602 |
Elastomeric probe apparatus and associated methods
A specially designed resilient probe device is used in place of the usual series of pogo pins in the electrical testing of a printed circuit board. The device includes a strip-like, nonconductive...
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5159265 |
Pivotable spring contact
A pivotable spring probe (30) includes a housing (36) having an opening, a plunger (34) within and guided by the housing, the plunger being slidingly movable between an extended position and a...
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5157325 |
Compact, wireless apparatus for electrically testing printed circuit boards
A wireless test system is provided for simultaneously performing electrical tests on the opposite sides of a printed circuit board. Specially designed, double-ended pogo pins are utilized to...
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5136238 |
Test fixture with diaphragm board with one or more internal grounded layers
Electrical circuit test fixture with a multi-layer insulating diaphragm board (26) with one or more internal conductive layers (28) within the board, the fixture operating free of static discharge.
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5134364 |
Elastomeric test probe
A test probe for testing electronic circuits is provided with a flexible conductive pad disposed at the end of the test probe. The flexible conductive pad is resilient so that when it makes...
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5134363 |
Arrangement for testing electrical printed-circuit boards
In an arrangement for testing electrical circuit boards an intermediary adapter is disposed between the circuit board and a basic adapter. For converting a grid offset as well as a grid with...
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5126657 |
Apparatus for testing computer chips in the chips normal operating environment
An apparatus for testing computer chips and their assopciated system in their normal operating environment is disclosed. The elements of the apparatus including the receiving elements, the mounting...
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5124646 |
Universal probe card for use in a semiconductor chip die sorter test
In a probe card, a plurality of holes are provided in a performance board and a probe needle is inserted through the hole and movable via the performance board in an up/down motion without being...
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5124660 |
Identification of pin-open faults by capacitive coupling through the integrated circuit package
Disclosed is a system that determines whether input and output pins of semiconductor components are present and properly soldered to a printed circuit board. The system includes an oscillator which...
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5122736 |
Apparatus for and method of pressing pins of an IC for testing
A socket-like structure with contact terminals for testing IC pieces is set at a specified position and a vertically movable block is set above this socket-like structure. A frame surrounding this...
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5122070 |
Electric test connector
An electric test connector is arranged for temporary for connection with another connector, for checking the electric continuity of units connected to the other connector. It comprises: a pluggable...
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5092774 |
Mechanically compliant high frequency electrical connector
An electrical connector (10) provides a mechanical coupling and an electrical interface between circuit boards (12,14). An elastomeric electrical conductor (20) provides compressible electrical...
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5084673 |
Electric contact probe
An electric contact probe, including a needle member made of electroconductive material having a pointed free end, a rod portion having a smaller diameter than the rod portion, and a head portion...
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5055779 |
Integrated board testing system
A convertible, integrated handling and testing system is described for interfacing a printed circuit board or card having electronic devices at predetermined locations thereon to a probe plate...
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5055777 |
Apparatus for testing of integrated circuits
An apparatus for testing of integrated circuits (ICs) has parallel plates arranged at a fixed distance from each other, each having a plurality of aligning bores, and a plurality of equally...
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5032787 |
Electrical test probe having rotational control of the probe shaft
A test probe assembly includes a barrel having a hollow interior and a plunger which slides axially in the barrel. The plunger has an outer portion extending through an open end of the barrel,...
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5030906 |
Electrical connecting apparatus
An electrical connecting apparatus supporting a multiple pin connector under test so that the connector pins of the connector can be electrically engaged without touching the functional connecting...
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5015946 |
High density probe
A high density probe for probing an integrated circuit package in situ on a circuit board has a probe body with a skirt that has alignment surfaces for mating with the package to provide an initial...
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5014004 |
Sprung contact pin for testing testpieces
The disclosure teaches a sprung contact pin for testing testpieces, in particular electrical printed circuit boards, including a casing, a coil spring disposed therein, a portion of a testing tip...
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4987365 |
Method and apparatus for testing integrated circuits
A method and apparatus for testing an integrated circuit of the type which is mounted on a flexible strip and which includes a die in electrical communication with a plurality of test pads formed...
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4982154 |
Method of engagement of electrical contacts to pipe members
A scheme for rapidly connecting and rapidly disconnecting a large number of point contacts onto a pipe surface is taught. The scheme involves pressing sharply pointed pin contacts onto the pipe...
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4978312 |
Tip attachment for circuit probe tester
The attachment consists of a single length of resilient wire formed into a coil spring portion, a probe engaging portion and an elongated tip portion. The tip portion extends forwardly from the...
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4977370 |
Apparatus and method for circuit board testing
A test fixture useful in testing printed circuit boards requires wire-wrapping only on a single side of a single board and is characterized by a reduced signal path length. The test fixture is...
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4967147 |
Circuit tester having mechanical fingers and pogo probes for causing electrical contact with test fixture assemblies
A test system for testing high density printed circuit boards with large numbers of integrated circuits. The system is especially suited for testing large scale integrated circuits. The overall...
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4967148 |
Apparatus for electrical function testing of wiring matrices, particularly of printed circuit boards
Apparatus for electrical function testing of wiring matrices, particularly of printed circuit boards. In the electrical function testing of wiring matrices, particularly of printed circuit boards,...
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4964809 |
Electrical test equipment
For applying test probes (40) to socket contact elements (92) of a standard electrical connector (52), a test probe assembly comprises an adaptor (2) carrying the test probes (40), and latched into...
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4959609 |
Electrical connecting apparatus for an electrical or electronic testing unit
The electrical connecting apparatus tests for electrical faults in an electrical and/or electronic device having a circuit board, wire support or the like equipped with a plurality of...
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4952872 |
Apparatus for electrically testing printed circuit boards having contact pads in an extremely fine grid
A circuit board testing apparatus includes a plurality of contact elements located in a contact array plane. The contact elements are connected to an electronic control and test structure and...
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4949032 |
Probe for dual in-line packages
A clip-on probe for a DIP includes a probe body carrying a detachable gripping portion including an extensible claw with a plurality of fingers for interdigital positioning with pins on the DIP....
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4947115 |
Test probe adapter
A test probe adapter for mounting on a bridge clip carrier or the like is presented. The test probe adapter includes an insulative housing having a pair of conductive test posts extended outwardly...
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4939452 |
Arrangement for testing printed-circuit boards
An arrangement for testing printed-circuit boards, in the case of a known arrangement, the adaptor device contains two sets of printed-circuit boards arranged side-by-side, which each have contacts...
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4939454 |
Connector system for printed circuit board test facility
The connector system for a printed circuit board test facility provides an efficient and unitary electrical and mechanical interconnection between the scanner pins of the bed of nails and the...
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4935695 |
Board alignment system
A board alignment system is provided for a printed circuit board test system wherein at least two spring biased alignment pins have body portions and first and second ends and the second end is...
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4935696 |
Test pin assembly for circuit board tester
Apparatus for testing the electrical integrity of printed circuit boards under test (BUTs), each BUT having a plurality of downwardly directed accessible nodes, the apparatus including support...
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4926119 |
Contact device for the testing of printed circuit boards or the like
A contact device for evaluating electrical or electronic test articles has a plate arrangement having a plurality of parallel plates in which contact needles are inserted with slide-bearing play....
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4918384 |
Spring contact pin for testing an electrical and/or electronic device
The spring contact pin contacts electrical or electronic items or devices to be tested for testing purposes. It comprises a sleeve, at least one contact bolt slidable in it and at least two springs...
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4904935 |
Electrical circuit board text fixture having movable platens
A test fixture is provided for contacting selected terminals (10, 10') of an electrical assembly for testing by a test device (28). The fixture includes spaced-apart upper platen (2), middle platen...
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4901013 |
Apparatus having a buckling beam probe assembly
An apparatus for testing of electrical circuits has a buckling beam probe assembly having advantageous features that make it useful for contacting area arrays of test points, and for reliably...
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4899104 |
Adapter for a printed circuit board testing device
An adapter for a printed circuit board testing device, by means of which the test contacts located on the grid can be connected to test points of a printed circuit board to be tested that are...
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4896107 |
Test pin for an adapter for connecting test contacts on the grid of a printed circuit board testing device with test points of a test-piece on and/or off the grid
A test pin for an adapter for connecting test contacts of a printed circuit board testing device that are located on a grid with test points of a test-piece such as a printed circuit board located...
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4885533 |
Electrical circuit test probe having an elongate cylindrical retaining and sliding bearing region
A probe for providing electrical contact to electrical circuits during the testing thereof. There is a tubular housing having an open end and a generally closed end with a main portion extending...
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4870354 |
Apparatus for contacting a printed circuit board with an array of test probes
A printed circuit board test fixture has both a vacuum chamber and a bed of nails. Holes through the body of the test fixture coincide with test points on the circuit board to be tested. The ends...
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4866375 |
Universal test fixture
Disclosed is a test fixture which electrically tests units which have on-grid and off-grid test sites defined by holes. The central feature of this test fixture is the use of an array of flexible...
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4853625 |
Electric wire clip
For use with a circuit tester having a pointed probe tip, the clip has a "U"-shaped configuration formed of first and second moveably connected wire clamping elements which define a recess. The...
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