FormFactor - HPD JDry-600 - 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-600 model is fitted with a cold-plate of 523 mm (20.6″) diameter, and provides a cooling power of more than ~600 µW at 100 mK.
More Product Information

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High performance power bypassing provides low-impedance and resonant-free connections to 20 GHz
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RF bandwidth to 500 MHz
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Long probe life: > 250,000 contacts
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Beryllium-copper tips for gold pads or tungsten for aluminum pads
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Oscillation-free testing of wide-bandwidth analog circuits
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Use with ACP series probes to provide functional at-speed testing for known-good-die
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Mix multiple contact types: Ground, Power (Standard or Eye-Pass), Logic/Signal
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Low and repeatable contact resistance on aluminum pads ( < 0.25 Ω on Al, < 0.01 Ω on Au)


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Different substrate carriers for wafers up to 100 mm or single dies
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Up to six positioners
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Independently cooled cold shield
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Probe positioners placed inside vacuum chamber
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Ergonomic and straightforward design
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Simple microscope operation
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Independent control of linear chuck stage and positioners
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Contact/separation stroke for probe platen

Customized Solutions for a Variety of Challenging Applications

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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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Probe loss is 3 dB typical between 140 and 200 GHz, S11/S22 15 dB typical
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Reduced unwanted couplings and transmission modes
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Able to shrink pad geometries to 25 x 35 µm (best case)
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Typical contact resistance < 0.05 Ω on Al, < 0.02 Ω on Au
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WR15, WR12, WR10, WR8, WR6, WR4, WR3, and WR2 bands available.


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Continues the Infinity family’s Industry leading electrical performance
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High temperature capability (175° C +) for automotive device characterization and other applications
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Better tip visibility for enhanced placement accuracy and repeatability
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Improved tip life/durability with solid rhodium contacts
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New tip architecture enables support for narrower pitches (e.g. 25um)
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Advanced mechanical design combined with small contacts enables probing on smaller pads/pitches and improves durability and robustness

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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

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

