FormFactor - Cascade IMS-K-LFN - Integrated system with Keysight A-LFNA for 1/f flicker noise, RTN, phase noise, device characterization, and other low-frequency noise measurements
Industry’s Most Productive and Accurate Advanced Low-Frequency Noise Measurement System
On-wafer 1/f noise measurements are a critical component of any characterization and modeling test system. Due to the required sensitivity, such testing can be easily corrupted by interference from outside or inside the test system. Overcoming these challenges requires carefully designed equipment from the industry’s foremost test and probe solution providers, cooperating to provide highly sensitive measurements in an ultra-low spectral noise environment. Tightly integrated instrumentation from industry leader Keysight completes the system to deliver best possible measurement accuracy and repeatability.
Fastest, Safest, and Most Affordable Path to High Quality Measurements
Pre-validated, turn-key, comprehensive, integrated measurement systems from FormFactor deliver peace of mind and immediate, out-of-the-box productivity for important test applications.
These benefits are provided at no extra cost. IMS solutions from FormFactor include no markups over Keysight pricing or integration charges.
Only one advanced low-frequency noise measurement system in the world is built upon the foundations of the #1 leader in R&D instrumentation plus the #1 leader in analytical probe systems – the FormFactor IMS-K-LFN.
Applications
- Low-Frequency Noise
FormFactor and partner Keysight applications experts will help you configure a robust, complete solution, including:
- FormFactor probe system: CM300xi-ULN, SUMMIT200 (others available)
- Manual, semi-automatic and fully automatic probes station options
- FormFactor analytical probes: DCP probes (others available) on manual or motorized positioners
- FormFactor DC automation software: Autonomous DC Measurement Assistant for unattended probing over temperature on small pads
- Full over temperature measurements and automation from -60°C to +300°C
- Keysight advanced low-frequency noise analyzer (A-LFNA): E4727B
- Keysight automation and modeling software: PathWave WaferPro (WaferPro Express)
- To complete the system: cables, adapters, mounting hardware, etc.
More Product Information

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Enables wafer probing up to 100 A pulsed and 10A DC
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Innovative multi-fingertip design provides even distribution of current
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Supports up to 500 V
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Replaceable Tungsten probe tips
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Temperature range of -60°C to 300°C
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Minimal contact resistance at the pad-tip junction to reduce heating during measurements, with fewer probe marks
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Prevents against thermal runaway
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Measure devices on wafer at higher currents than ever before
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Small scrub minimizes damage to aluminum pad
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Small footprint – tip fits on a 1 mm pad

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Ultra-low, fA-level current and fF-level capacitance measurements from -65 °C to + 300 °C
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Guarantees fully-guarded measurements to fA and fF levels
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Individual connectors provide force-sense connection for quasi-Kelvin and CV measurements
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Allows probing of different pad materials and sizes
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Fast replacement of worn probes without the need for tools

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

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DC-40 GHz bandwidth
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10 ps rise time
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Low insertion and return loss
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2 mils of tip-to-tip compliance
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High probing angle and clearance

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Multi-purpose SIGMA instrument integration kit
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Shorter cabling and universal chuck connection
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Triax probe with protected guard
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Triax design for low-leakage measurements up to 3 kV
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Special chuck surface coating
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High-isolation ready
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Arcing protection
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Shield Enclosure with interlock
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Advanced grounding concept

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Unique Air Coplanar tip design with choice of beryllium copper (BeCu) or tungsten tip material
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DC to 110 GHz models available in single and dual line versions
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Low insertion and return loss with ultra-low-loss ( -L ) versions
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Excellent crosstalk characteristics
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Wide operating temperature -65 ° C to + 200 ° C
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Wide range of pitches available, from 50 to 1250 µm
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Individually supported contacts
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Reduced contact (RC) probe tips for small pads
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BeCu tip provides rugged, repeatable contact on gold pads

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Advanced MicroVac chuck surface for minimum contact resistance between wafer and chuck
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Safety-rated interlock system for high-power testing (meets EN 60947-5-1, EN 60204-1)
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Supports fully automated testing up to 10kV by eliminating arcing point
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Full wafer access via locking roll-out stage
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On-wafer power device characterization up to 10,000 V DC / 600 A
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Coaxial, triaxial, and pin jack feed-troughs available
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Convenient instrument connection kits
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Load/unload wafer to hot/cold chuck (-60° C to +300° C)
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Up to 15% faster transition times than other systems in the market

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Re-configurable for DC, RF, mmW, FA, WLR and more
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Thermal range: -60˚C to 300˚C available
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Upgrade path to meet your future needs
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Stable and repeatable measurements over a wide thermal range
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Moisture-free, light-tight and EMI-shielded test environment with MicroChamber® technology
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Advanced EMI-shielding with PureLine with AttoGuard technologies
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Best solution for low-noise and 1/f measurements
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Minimize AC and spectral noise
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Minimizes settling times for efficient measurements, without compromising accuracy over full thermal range
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Locking roll-out stage
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Innovative microscope remote control
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Intuitive ergonomic stage controls
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Quick, safe, and comfortable wafer access
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Easy on-wafer navigation
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Fast setup and test data gathering
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Dedicated Velox version for manual probe stations
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AugmentedAlign tool with on screen markers for improved RF measurement accuracy

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Different substrate carriers for wafers up to 200 mm or single dies
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Probe cards and/or up to eight positioners
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Independently cooled cold shield
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Probe positioners placed inside vacuum chamber
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Intuitive, manual drives
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Front loading capability through load door
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Independent control of linear chuck stage and positioners
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Contact/separation stroke for chuck

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
