Patents
Patents for G01R 1 - Details of instruments or arrangements of the types covered by groups  or (27,269)
04/1994
04/14/1994DE4234461A1 Test adaptor esp. for gas-insulated medium-voltage switchgear - has recessed insulating sleeve fitted replaceably into hollowed end of tubular polymeric plug with coaxial conductor
04/12/1994US5302891 For testing a semiconductor device in die form
04/12/1994CA1328481C Test head with improved shielding
04/06/1994EP0590221A1 Current measuring structure for testing integrated circuits
04/06/1994EP0589935A1 Inspection of a dynamo-electric machine in a gap between stator and rotor.
04/05/1994US5300917 Junction box having integrally formed shunt
04/05/1994US5300885 Field probe for measuring vector components of an electromagnetic field
04/05/1994US5300881 For testing of printed circuit boards
03/1994
03/31/1994DE4232404A1 Testing integrated circuit chip on substrate - involves temporarily sticking substrate carrying chip onto adaptor during testing
03/30/1994EP0589593A2 Electro-optic sampling
03/30/1994EP0589518A1 Appliance for hyperfrequent calibration
03/23/1994EP0588512A1 Method of and apparatus for scanning the surface of a workpiece
03/23/1994CN1084279A High voltage megohm meter with delay short circuit protection
03/22/1994US5296804 Air core gauge fixed voltage signal and variable pulse width modulation signal interchanged control system therefor
03/22/1994US5295853 Mechanism for removably mounting dut board on test head
03/22/1994US5295841 Supportable contact and chip carrier socket for use with an assembly/disassembly tool
03/16/1994EP0587418A2 Electro-optic probe
03/16/1994EP0587337A1 Debondable metallic bonding method
03/09/1994EP0586202A2 Voltage measuring apparatus
03/09/1994EP0586182A2 Radial planar current detection device having an extended frequency range of response
03/09/1994EP0585656A2 Clamp-on current measuring probe
03/08/1994US5293516 Multiprobe apparatus
03/08/1994US5293131 Capacitive probe for bore measurement
03/08/1994US5293122 Signal probe with remote control function
03/01/1994US5291129 Contact probe
03/01/1994US5291124 Tester for high voltage measuring apparatus
03/01/1994US5290193 High density grid array test socket
03/01/1994US5290192 Chip carrier socket
02/1994
02/22/1994US5289117 Translator module
02/17/1994WO1994004015A1 Adapter for an automatic inspection device of printed circuit boards
02/16/1994EP0583097A1 Double ended hermaphroditic signal node module
02/10/1994DE4226069A1 Adaptereinrichtung für eine automatische Prüfvorrichtung zum Prüfen von Schaltungsplatinen Adapter device for an automatic test apparatus for testing of circuit boards
02/09/1994EP0582072A1 Temperature compensated voltage regulator having beta compensation
02/09/1994CN2155591Y Automatic tester
02/09/1994CN2155571Y Universal testing clamp for low-resistance testers
02/08/1994US5285149 Method for loading an adapter for a device for testing printed circuit boards
02/03/1994DE4224444A1 Test plug for checking electrical and mechanical connection of spring contact to current rail - uses cable connection aperture in spring contact for contacting test pin to current rail
02/01/1994US5283605 Device for testing contacting and/or wiring of sockets on a circuit board
02/01/1994US5283518 Method for the control of ground bounce below an internal ground plane in a short-wire board test fixture
01/1994
01/27/1994DE4224186A1 Electrical connection device esp. for measurement equipment - has small contact parts including stem of measurement spike aligned for entry into bore in pin of plug connector
01/26/1994EP0580446A1 Electric field measuring apparatus
01/25/1994US5282111 Thermal transfer plate and integrated circuit chip or other electrical component assemblies including such plate
01/19/1994EP0276280B1 Method for remotely detecting an electric field
01/19/1994EP0274529B1 Liquid crystal display
01/19/1994CN2153805Y Minisize signal measuring probe
01/18/1994US5280254 Connector assembly
01/18/1994US5280236 IC test instrument
01/12/1994EP0578375A2 Adjustable strap implemented return line for a probe station
01/11/1994US5278508 Diagnostic apparatus displaying engine operating characteristics in the parameters in which the characteristics are measured
01/05/1994EP0577333A1 Temporary connections for fast electrical access to electronic devices
01/04/1994US5276395 Bed-of-pins test fixture
12/1993
12/28/1993USRE34491 Contact array assembly for a computer-controlled printed circuit board testing apparatus
12/28/1993US5274336 For acquiring a digital electrical signal from a source conductor
12/28/1993US5273441 SMA burn-in socket
12/28/1993US5273438 Canted coil spring array and method for producing the same
12/23/1993WO1993026059A1 Millimeter wave beam deflector
12/23/1993DE4236086C1 Low-ohmic electrical measuring resistance - uses two symmetrical terminals with stepped facing edges providing seating for inserted resistance element
12/22/1993CN2150563Y Double-slide linear-analog given device
12/21/1993US5272768 Blank strip font compression method and device, and resulting stored, decompressible font
12/21/1993US5272433 Polarmetric electric field sensor with electro-optical crystal cut disposed to measure electric field direction
12/15/1993EP0574149A1 Wafer probe station having integrated guarding, Kelvin connection and shielding systems
12/15/1993EP0574120A1 Signal probe apparatus
12/15/1993EP0574076A1 Probe for sampling electrical signals
12/14/1993US5270660 Electrostatic voltmeter employing high voltage integrated circuit devices
12/14/1993US5270641 For testing of circuits of a printed circuit board
12/14/1993US5270543 Electronic probe and method for its manufacture
12/09/1993WO1993024844A1 Capacitive probe type circuit board with shielded connector
12/08/1993EP0572736A1 IC test clip with flexible contacts
12/08/1993CN1023032C Digital wire searcher
12/07/1993US5268636 MMIC package and interconnect test fixture
12/02/1993DE4242585C1 Measuring probe for ohmic surface and volume resistivity - uses replaceable contact pins fitted in two rows to surface of insulating plate
12/01/1993EP0572311A1 Resistive current sensor
12/01/1993EP0572180A1 Wafer probe station having auxiliary chucks
11/1993
11/30/1993US5267336 Electro-optical sensor for detecting electric fields
11/30/1993US5266903 Shielded connector for making electrical connections to a circuit board in the form of a capacitive probe
11/30/1993US5266895 Probe with contact portion including Au and Cu alloy
11/30/1993US5266885 Generator of reference voltage that varies with temperature having given thermal drift and linear function of the supply voltage
11/30/1993US5266059 Generic rotatable connector assembly for testing integrated circuit packages
11/25/1993WO1993023757A1 High-speed, high-impedance external photoconductive-type sampling probe/pulser
11/24/1993EP0570840A2 Sensor for testing integrated circuits
11/24/1993CN2147538Y Domestic plug type inserting electric voltage meter
11/23/1993US5264788 Adjustable strap implemented return line for a probe station
11/23/1993US5264787 Device for testing an electrical circuit element
11/18/1993EP0570148A2 Electrostatic voltmeter employing high voltage integrated circuit devices
11/18/1993DE4241863C1 Plug contactor module for testing vehicle cable trees terminated with plugs - has sprung contact pins which, when plug is inserted in housing, are pressed against contact pieces of plug and retained
11/18/1993DE4216262A1 HF measurement equipment connector for instrument sensing head cable - has hybrid circuit board for mounting frequency characteristic compensation circuit in parallel with series LCR resonant circuits tuned to higher frequency band than compensation circuit.
11/02/1993US5258705 Active matrix substrate inspecting device
11/02/1993US5258703 Temperature compensated voltage regulator having beta compensation
10/1993
10/28/1993DE4231704C1 Mfg. needle for dynamic signal measurements in integrated circuit chip - covering metallic needle point by insulation layer and outer metal layer apart from extreme needle end
10/27/1993EP0566805A1 Measuring probe for ignition circuit
10/26/1993US5257167 Silhouette illuminated vehicle display apparatus
10/26/1993US5257166 Configurable electronic circuit board adapter therefor, and designing method of electronic circuit using the same board
10/21/1993DE4212837A1 Adaptor for circuit board test appts. - has needle carrier plate with needle contact elements fixed in axially adjusted positions
10/14/1993WO1993020675A1 Integrated circuit test socket
10/14/1993WO1993020453A1 Pcb test socket
10/12/1993US5252916 Pneumatic test fixture with springless test probes
10/12/1993CA1323067C Electric wire clip
10/06/1993EP0563234A1 Testing clip and circuit board contacting method.
09/1993
09/29/1993EP0561984A1 Assembly for connecting a test device to an object to be tested
09/29/1993EP0561765A1 Novel method of making, testing and test device for integrated circuits