FormFactor - HPD JDry-250 - Cryogen-free Dilution Refrigerator
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Low running costs, less vibration, less noise, reduced maintenance
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Large convenient experimental access: Up to 12 line-of-sight ISO100 ports located on perimeter of plates
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CMN calibrated thermometry on MC plate
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Operation via touch panel controller: Remote operation via ethernet interface
FormFactor’s JDry cryogen-free dilution refrigerators enable easy and cost-effective cooling to temperatures below 10 mK. The JDry models have been optimized for quantum computing applications and can accommodate up to 270 semirigid cables. General-purpose configurations and astronomy/detector cooling are also provided.
The JDry cryogen-free dilution refrigerator series includes multiple standard models. All are available with easy push-button cooling using the robust and fully-automated NI LabVIEW™-based “JACoB” gas-handling system (GHS).
The JDry-250 model is fitted with a cold-plate of 305 mm (12″) diameter, and provides a cooling power of more than 250 µW at 100 mK.
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.

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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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Probe positioners placed inside vacuum chamber
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Short and stable probe arms
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Joystick controller
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Manual probe positioners with rotary feed-throughs
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Software control of chuck for fast step-and-repeat testing of the entire wafer
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Fast step-and-repeat testing of the whole wafer
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User-centered design minimizes training costs and enhances efficiency

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High power – 66 W at 2.4 GHz and 43 W at 5 GHz
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Extremely low insertion loss of ≤ 0.4 dB (typical) up to 40 GHz
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Excellent contact control and low contact resistance
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High performance on any pad material (Al or Au)
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Longest lifetime – typically one million (1,000,000) touchdowns

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Fully isolated experiment space for true 4K temperatures during probing
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Cryogenic positioners to provide large travel ranges without warming up the device
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Flexible thermal jumpers to ensure high thermal conductance and low mechanical transmission
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A soft vacuum bellows provides a compliant mounting interface for the cryocooler
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Quick release vacuum feedthroughs for easy configurability
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A large rectangular port for high signal capacity


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Application flexibility: Coax, Triax, RF/mmW, High Power, Double Sided
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Temperatures range from -60°C to +300°C
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Up to 25% lower air consumption (CDA) than other systems on the market with no compromise in transition times
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Low Thermal Resistance Technology
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MultiSense with multiple temperature sensors
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Isolated from ground
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Includes a jack for grounding and biasing
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Advanced wafer vacuum system for warped/partial thin wafers
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Provides uniform vacuum across the entire wafer surface
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Advanced shielding technology

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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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Different substrate carriers for wafers up to 200 mm or single dies
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Probe cards and/or up to eight positioners
-
Probe positioners placed inside vacuum chamber
-
Short and stable probe arms
-
Joystick controller
-
Manual probe positioners with rotary feed-throughs
-
Software control of chuck for fast step-and-repeat testing of the entire wafer
-
Fast step-and-repeat testing of the whole wafer
-
User-centered design minimizes training costs and enhances efficiency

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


