FormFactor - HPD Wet DR Series - Wet Dilution Refrigerator Systems
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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
FormFactor’s wet dilution refrigerators has two series of products: the Wet DR-50/250/500 and Wet DR-50-TL/250-TL/500-TL.
Both series of dilution refrigerators enable easy and cost-effective cooling to temperatures between 35 to 10 mK.
The sample of Wet DR-50/250/500 systems is located in a normal vacuum (HV) space. It can be loaded when the system is warm with the vacuum can open.
The TL series has been optimized for scanning tunneling microscopy (STM) applications. The sample can be loaded into the ultra-high vacuum (UHV) space from the top of the dilution refrigerator insert when the cryostat is cold.
Custom wiring is available.
Both fully automated and manually operated gas handling systems are available.
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More Product Information
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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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Superior field confinement reduces unwanted couplings to nearby devices and transmission modes
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Superior measurement accuracy and repeatability
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Small scrub minimizes damage to aluminum pad
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Typical contact resistance < 0. 05 Ω on Al, <0.02Ω on Au
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Save valuable wafer space and reduce pad parasitics by being able to shrink pad geometries to 25 x 35 µ m (best case)
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Low insertion loss
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Low contact resistance
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Lithographically defined probe tip
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Nickel contacts
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Wafer temp verified <4.5 K (with 44 RF probes in contact)
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Magnetic field suppression to <200 nT
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Easy exchange of customizable probe cards
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Configurable for 150 mm, 200 mm and 300 mm wafers
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Options for fully automated wafer load or manual
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Complete software suite for manual, semi-auto, or fully automated probing
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25 wafer cassette capacity for fully automated testing
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~15 minute cooldown time per wafer
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Load-lock chamber: Cycle devices 10X faster in a cryogenic environment
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High-density electrical interface at cryogenic temperatures: More pins on the device enables more test structures to be probed with a single cooldown
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Base temperature of < 2K or < 4K with high cooling power: Test devices at the temperatures that matter most for pre- screening and evaluating device performance
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Low vibration: Stable contact with the device under test and enables low noise measurements
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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
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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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Probe station
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Keysight Streamline Vector Network Analyzer (option up to 53 GHz)
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Choice of probes
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Known measurement accuracy traced back to independent standards
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Uses best measurement practices for optimized measurements
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Best in class RF and Microwave performance
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Small benchtop footprint
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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.
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
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