FormFactor - Cascade Multiline TRL Cal Substrates - Multiline TRL substrates for T-Wave probes
- Substrate material: High-resistivity silicon
- Substrate thickness: 275 µm
- Dielectric constant: 11.8
- Nominal Z0: 50 Ω
Millimeter- and submillimeter-wave calibration substrates, optimized for T-Wave™ probes. The multiline TRL calibration substrates offer CPW standards including reflect (short), thru and two lines and are recommended to use with WinCal™ calibration software. Some off-set short and off-set open structures are included for additional measurements.
Models
Part Number |
Description |
Pitch (μm) |
---|---|---|
Multi-line TRL Substrate, WR1.0, WR2.2, WR3.4, WR4.3, WR5.1 |
25 |
|
Multi-line TRL Substrate, WR2.2, WR3.4, WR4.3, WR5.1 |
50 |
|
Multi-line TRL Substrate, WR3.4, WR4.3, WR5.1 |
75 and 100 |
More Product Information

The CSR family of calibration substrates delivers the highest accuracy available due to the high quality of each substrate. The calibration standards are manufactured using rugged, hard gold, which ensures a long lifetime.

- High-quality construction with low-noise electrical performance
- Kelvin version for convenient 4-point measurements
- Replaceable coaxial probe tips, with choice of tip radii, and full electrical guard to the probe tip
- SSMC 50 connectors
- Ultra-low, fA and fF measurements from -65 º C to 150 º C

PureLine 3 Technology
- Provides an effectively noise free environment around the device under test (DUT)
- First automated probe station to achieve -190dB spectral noise*
- Up to 32x lower noise (1kHz), for improved device characterization and modelling at the 7/5/2 nm technology nodes targeted for 5G and beyond applications
- Eliminates over 97% of the environmental noise experienced in previous probe systems
- Extensive collection of FormFactor patents, electrical design knowledge, and measurement system IP
Plug In and Go
- 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)
- Eliminates all ground-loop induced TestCell noise
- Low field emissions
- Provides fully managed and filtered AC power to the entire system, prober and instruments
See "Specifications & Details" tab for more key features

More than a calibration tool
- Calibration
- Validation
- Measurement
- Analysis
No one supports more VNA’s
- Support of more than 24 of the most common VNA’s
Tool for the novice
- Guided wizards and multimedia tutorials integrated
- Intelligence in setups
See "Specifications & Details" tab for more key features

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

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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

Three Probe Technologies
- Infinity Probe: best for Al (Si)
- ACP Probe: best for AU (III-Vs)
- |Z| Probe: robust solution (long lifetime)
- Precision contact on a wide variety of materials from 26 GHz to 67 GHz
- Accurate results with excellent crosstalk
- Matching cables and substrates included
Precise Contact Solution
- RF chuck ±3 μm surface planarity
- Unique 500 μm platen contact/ separation stroke with ≤± 1 μm accuracy for repeatable contact
- Precision probe alignment
- Consistent contact force and overtravel
- Stable contact performance
WinCal Calibration Software
- Exclusive 1-, 2-, 3-, and 4-port on-wafer calibration algorithms
- Automated calibration monitoring
- Unique measurement & analysis methods
- Accurate S-parameter measurements
- Automatic calibration setup for higher efficiency
- Fast and easy data interpretation and reporting

- Full-radius, nickel-plated tungsten needles
- Power bypass inductance: 16 nH
- Supports collinear and non-standard needle configurations
- Support up to a maximum of 12 ceramic blades DC needles / contacts
- Ideal for probing the entire circuit for functional test
- DC probes can provide power or slow logic to circuit under test

- Power bypass inductance: 8 nH
- Standard DCQ probes have flat tip needles available in nickel-plated tungsten or BeCu with diameters of 0.75 mil, 1.0 mil and 1.5 mil.
- Supports collinear and non-standard needle configurations
- Up to 16 DC for standard; maximum of 24 DC for custom
- Ideal for probing the entire circuit for functional test
- DC probes can provide power or slow logic to circuit under test

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
