I get asked about various subjects from time to time. This is just
a way to answer common questions.
These were designed for bed of nails printed circuit board
testing, but they can be used anywhere you want a contact that has compliance
like to test semiconductor parts with flat leads.
Interconnect Devices Inc.
Everett Charles Technologies
QA Technology Company, Inc. -
Analytical (aka Failure Analysis) Probe Stations
These have a manual X-Y stage and a manual way to raise and
lower the chuck. Provision for a stereo microscope and a horseshoe
or "C" plate to hold magnetic mount probes. Many of the probes have
manual X - Y stages so that you can locate them on the pads. Some
stations have a socket to hold a probe card.
Company - Manual
Probe Stations - coaxial
probe good for C-V & DC but limited frequency range
Electroglas - used to make
a manual probe station, check used equipment dealers
Signatone - Manual
/ Semiautomatic Probe Stations & Accessories -Richard Dickson -
B & G International - Probe-It
- has good photograph of this type of station
America - PA300 - Dennis Place - 802-244-5181 x 229
J Micro Technology -
(89k) - Jerry Schappacher - 503-614-9509
GGB Industries, Inc.
(Picoprobe) - on-wafer microwave probes
Cascade Microtech, Inc.
- stations & microwave probes
OZ Tek -
- test leads, adapters, etc.
Trompeter - adapters, connectors
Source Measurement Units
These are combined voltage/current sources and current/voltage
measurement meters. They typically have the voltage and current ranges
optimized for testing semiconductior DC parametrics.
Agilent (HP) 4145/4155/56
- are all in one big box, 4142 - modular with plug in modules with different
ratings that's only cost effective for 3 or maor channels.
Keithley 326, 237, 238 - single
SMU in 2U rack box - see the System 93 I-V test cluster for links to a
number of the SMUs
Interface Technology -SM15
- I have not used this one
Another way to do this is to use seperate sources and meters with a
MUX such as:
Keithley - 220, 230
Racal (Dana) - 1250
Agilent (HP) - 3488, 34970, etc.
to Rack and Stack Systems