FormFactor - Cascade Unity Probe - Multicontact probe for RFIC engineering test
-
Up to 12 contacts; any contact can be DC, Power, Logic to 500 MHz,or RF to 20 GHz
-
Online design configuration tool helps you to specify your probe in minutes
-
All designs are fully quadrant compatible
-
Full solution includes probes, calibration substrates, stations, accessories and software
-
Scalable architecture for future needs
The multi-contact Unity Probe provides highly flexible configurability, unprecedented durability and ease-of use for RFIC engineering test. Unlike “bent-to-order” needle-probe solutions, Unity probes are quickly “built-to-order” with a precision tip cluster featuring multiple independently compliant fingers to isolate chip components from probing stresses — maximizing probe life and durability. Each contact can be configured to one or several contact types and frequencies, and the Unity Probe delivers on the legendary quality you’ve come to expect from our comprehensive suite of probing solutions.
Use our online tool to capture your design requirements and receive a quote.
Use our online tool to capture your design requirements and receive a quote.
More Product Information

-
Die-to-die stepping time of under 100 ms
-
Up to 20 dies/sec (70,000 dies/hour) with MultiDie Testing technology
-
Even extreme variations in height, such as the case with warped wafers, can be compensated
-
Interfaces to all major analysis instrumentation, optics software and testers
-
Access to top side and bottom side of device under test (DUT)
-
Highly accurate light measurement
-
Test automation out-of-cassette for 24/7 operation

-
Combination of DC and RF in a single probe module: One dual probe or a maximum of three RF; a maximum of 9 DC standard (other quantities upon request).
-
Utilizes ACP tip design, GSG, GS or SG
-
RF tips available from DC to 110 GHz
-
Choice of BeCu or tungsten tips
-
DC power needles come standard with 100 pF microwave capacitor
-
Power bypass inductance: 8 nH
-
Maximum DC voltage: 50 V without power bypassing (25 V with standard power bypassing, and component dependent with custom power bypassing)
-
Ideal for probing the entire circuit for functional test
-
Dual ACP configuration supports differential signaling applications
-
DC probes can provide power or slow logic to circuit under test

-
Best price per contact – typically over one million (1,000,000) touchdowns
-
RF/Microwave signal is shielded and completely air isolated in the probe body
-
Excellent performance in vacuum environments and temperatures as low as 4 K, or as high as 300°C
-
Highest impedance control with perfectly-symmetrical, MEMS-machined coplanar contact structure
-
Probe on any pad material with minimal damage

-
A wide frequency range eliminating the need for antenna changes
-
30W maximum power input allows high filed strengths
-
High efficiency due to a low VSWR and high gain
-
Suitable for broadband digital modulation thanks to a good VSWR flatness
-
Small, light-weight and flat antenna easy to use in narrow spaces
-
Easy handling with a flexible arm
-
A wide radiation pattern makes directivity of the fields no longer an issue

-
Proven technology: designed in conjunction with several top STM groups in the world
-
Quiet, low vibration operation
-
Low running costs and reduced maintenance
-
Easy operation and fast cool-down; load sample when the system is cold for TL models
-
Calibrated RuO and CMN thermometry read by model 372S resistance bridge are installed on the mixing chamber plate

The TEM horn antenna is an antenna used for conducting close proximity radiation immunity evaluation test (near electromagnetic field immunity test) of electromagnetic waves radiated from various wireless transmitters such as mobile devices.
In the future, close proximity radiation immunity evaluation test using the TEM horn antenna is expected to expand to various product standards such as medical equipment (IEC 60601-1-2) and multimedia equipment (CISPR 35).NoiseKen's TEM horn antenna has a wide band, low VSWR, and wide electric field uniformity offering an ideal solution for an efficient close proximity radiation immunity test.
- A TEM horn antenna compliant with IEC 61000-4-39 Ed.1.
- Test without changing the antenna in the frequency range of 380MHz to 6GHz.
- Low VSWR and high GAIN enable efficient electromagnetic wave radiation.
- Wide field uniformity reduces the number of times of movement of the antenna when radiating the EUT.
- Since the maximum point of the near electric field distribution for each frequency is at the center, enables radiation on the EUT based on the axis of the antenna. Hence, significantly simplifies test point alignment.

-
Provides an effectively noise free environment around the device under test (DUT)
-
World’s first probe station with integrated TestCell Power Management (a TestCell is a connected set of equipment, including test software, instruments, probe station, thermal system, and related measurement accessories such as cables and on-wafer probes)
-
Up to 4x faster flicker noise thermal testing on 30 μm pads
-
Provides dark and dry environment for measuring light sensitive transistors, and devices at negative temperatures (<= -60°C) with frost free operation
-
Provides fully managed and filtered AC power to the entire system – prober and instruments
-
Filters harmful noise generated by external thermal control systems
-
Reduced “antenna effect” injection of unwanted RF noise into the measurement path
-
Provide up to 100dB attenuation (50Hz to 80Mhz) with 100mA max DC current handling
-
Ultra-low, fA-level current and fF-level capacitance measurements from -65 °C to + 300 °C
-
Enables full access to the chuck and the auxiliary sites
-
Intuitive, and precise movement of chuck in X, Y, and Z-direction
-
User-centered design minimizes training costs and enhances efficiency
-
Test automation out-of-cassette for higher test cell efficiency for over-night/over-weekend operation

-
Different substrate carriers for wafers up to 150 mm or single dies
-
Up to six positioners
-
Probe positioners placed inside vacuum chamber
-
Short and stable probe arms
-
Ergonomic and straightforward design
-
Intuitive, manual operation
-
Independent control of linear chuck stage and positioners
-
Contact/separation stroke for probe platen

-
Ideal for a wide range of applications such as RF, mm-Wave and sub-THz characterization, FA, DWC, MEMS, optoelectronic tests and WL
-
Re-configurable and upgradable as requirements grow
-
Minimizes setup times with no loss in performance or accuracy
-
Seamless integration of various measurement instruments
-
Solid station frame
-
Built-in vibration-isolation solution for superior vibration attenuation
-
Rigid microscope bridge
-
Compact and rigid mechanical design
-
Highly accurate measurement results
-
Incorporates best-known methods
-
Ergonomic and straightforward design for comfortable and easy operation
-
Low-profile design
-
Simple microscope operation
-
Quick and ergonomic change of DUT through pull-out stage
-
Minimize training efforts
-
Fast time to data
-
Convenient operation

FormFactor, Inc.
FormFactor, Inc. (NASDAQ:FORM) is a leading provider of essential test and measurement technologies along the full IC life cycle – from characterization, modeling, reliability, and design de-bug, to qualification and production test.
We constantly strive to help our customers solve the advanced test and measurement challenges of the broader semiconductor industry. Our focus on customer partnership, innovation, agility and operational excellence allows us to earn sustainable business every day.
Contact Details
FormFactor, Inc. Corporate Headquarters
7005 Southfront Road, Livermore, CA 94551, USA
Phone: 925-290-4000
Test & Measurement
