FormFactor - Cascade Resistive Matching and Termination - Custom configured for your application
- Choice of Series resistance or Termination (signal line to ground)
- Use of High Performance RF Resistors
- Choice of Resistor values available
- Choice of body styles, Infinity, ACP or FPC
- Can help to stabilize oscillations in high-gain devices
- Impedance match to low dynamic resistance laser diodes
- Custom configured for your application
Resistive Impedance Matching Probes and Termination probes are available for the following probe families: Infinity; ACP; FPC, in multiple configurations. We use high performance / high quality RF resistors for these Matching or Termination probes and the resistors are placed as close as possible to the tip/DUT, to minimize the path length between the DUT and the resistor. The available Resistance values are limited and are listed in the request form. These types of Impedance Matching and Termination probes are used in various application such as with laser diodes, Transmission Line Pulse, ensure better termination of 50 ohm test equipment when mated to high impedance devices, etc.
More Product Information

Floating Action Buttons
- Easy and fast setup of camera views
- Go to Light and Image Settings of the selected camera view with only one mouse click
Workflow Wizard
- Guided workflows for wafer setups, alignment tools and Autonomous Assistants
- Workflow wizard shows task-relevant settings and options only
- Wizard settings can be corrected anytime – no need to restart the wizard
- Wizard helps with intelligent solutions in case of error
See "Specifications & Details" tab for more key features

Optimized Measurement Setup
- Multi-purpose SIGMA instrument integration kit
- Shorter cabling and universal chuck connection
- Triax probe with protected guard
- Optimized signal path
- Safe probe tip exchange
- Seamless integration of various analyzers
High Power Chuck
- Triax design for low-leakage measurements up to 3 kV
- Special chuck surface coating
- High-isolation ready
- High-current measurement up to 100 A with lowest contact resistance
- Optional upgrade for 10 kV (coax) operating voltage
- Thin wafer handling capability
Safe Operation
- Arcing protection
- Shield Enclosure with interlock
- Advanced grounding concept
- Maximum protection from high-voltage shock for users and devices
- Common ground protection for all instruments
- EMI/light-tight shielded environment

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Ease of use – Less experienced operators can perform an RF calibration up to 500 GHz by simply pushing a button. This reduces the need of experienced users full time on each system.
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Reduced Soak Time – The system will automatically re-align the probes to the pads if they drift from alignment. This reduces test time and increases throughput.
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Unattended Use – Measurements can be left running over night or the weekend, testing all devices on the wafer, and at different temperatures without the need of an operator.
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Calibration Monitor and Re-calibration – System will continuously monitor calibration drift, and automatically re-calibrate the system should the drift exceed a predefined limit.

- Ideal for multiport RF/Microwave and high-speed digital signal testing
- Mix DC and RF/Microwave signals on one probe
- Long lifetime – typically over one million (1,000,000) touchdowns
- Excellent performance in temperatures ranging from 10 K to 200°C
- Probe on any pad material with no damage

- Maximized Field-of-View with Ultra-Sharp Image Quality
- Slim Design
- Patent-Pending Crash Protection
- Intelligent Lens Mount
- Application Flexibility
- Seamless Integration with Velox Probe Station Control Software
- Autonomous Measurement Assistants
- Remote Operation
See "Specifications & Details" tab for more information

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

Focus Microwaves' Harmonic Tuners are engineered to enable precise control of impedance at the fundamental and harmonic frequencies (typically f₀, 2f₀, and 3f₀), making them essential for nonlinear device characterization and power amplifier design.
These tuners feature multiple cascaded probes within a single tuner body, allowing independent or simultaneous tuning at multiple frequencies. Their robust design ensures high tuning accuracy, minimal insertion loss, and excellent repeatability across a broad frequency range. Harmonic tuners are the ideal solution for advanced Load Pull measurements where harmonic control is critical.

Gold-plated TESLA High-power MicroVac™ Chucks
- Prevent thin wafers from curling and breaking
- Advanced MicroVac chuck surface for minimum contact resistance between wafer and chuck
- Accurate Rds(on) measurement at high current
- Accurate UIS measurements at high temperature

Comprehensive, Turn-key Integrated Measurement System (IMS) with Keysight PNA for On-wafer R&D Measurements from RF to millimeter wave to Terahertz

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
