FormFactor - Cascade Eye-Pass Probe - Durable multi-contact wafer probe with controlled impedance power bypass technology
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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)
The multi-contact Eye-Pass probe provides controlled impedance power connections enabling functional testing of even the most challenging circuits on-wafer. The high-durability composite multi-finger tip provides high compliance and ensures precise alignment. This custom probe allows the user to select the footprint pattern best suited for the application, with up to 12 contacts per probe head. Available contact types are ground, logic, standard and Eye-Pass power supply, power supply sense, and ac signal.
Use our online tool to capture your design requirements and receive a quote.
Use our online tool to capture your design requirements and receive a quote.
More Product Information

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Infinity Probe: best for Al (Si)
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ACP Probe: best for AU (III-Vs)
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|Z| Probe: robust solution (long lifetime)
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RF chuck ±3 μm surface planarity
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Unique 500 μm platen contact/ separation stroke with ≤± 1 μm accuracy for repeatable contact
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Exclusive 1-, 2-, 3-, and 4-port on-wafer calibration algorithms
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Automated calibration monitoring

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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

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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

Quantity in Stock: 1

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Enables coaxial measurements up to 10,000 V and 300 A pulsed (600 A in a parallel configuration) with a single touchdown
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Even distribution of high current with innovative multi-fingertip design
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Compatible with TESLA 200/300 mm power device characterization system
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Reduced measurement time by testing both high-voltage and high-current conditions with a single touchdown
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Accurate characterization of a wide range of pad sizes and test currents, with minimum pad damage and contact resistance
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Safe, reliable and repeatable high-current/voltage measurements over a wide temperature range (from -55°C to +300°C)

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Advanced MicroVac chuck surface for minimum contact resistance between wafer and chuck
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Safety-rated interlock system for high-power testing (meets EN 60947-5-1, EN 60204-1)
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Supports fully automated testing up to 10kV by eliminating arcing point
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Full wafer access via locking roll-out stage
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On-wafer power device characterization up to 10,000 V DC / 600 A
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Coaxial, triaxial, and pin jack feed-troughs available
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Convenient instrument connection kits
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Load/unload wafer to hot/cold chuck (-60° C to +300° C)
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Up to 15% faster transition times than other systems in the market

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Customizable sample space to fit the user’s application
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Long holding time: 100 hours for six (6) STP liter He-3 gas
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Stable He-3 pot temperature: Separate sippers for 1K pot and the charcoal sorb cooling line; +/- 0.5 mK at base temperature
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Low noise
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Multiple operation modes: He-3 cryostat can be operated without pumping the 1K pot (referred to as 4K operation mode)

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DC, AC and RF/microwave device characterization, 1/f, WLR, FA and design debug
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Full thermal range of -60°C to +300°C
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Reliable and repeatable contact
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Moisture-free, light-tight and EMI-shielded test environment with MicroChamber® technology
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Enables full access to the chuck and the auxiliary sites
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Intuitive, and precise movement of chuck in X, Y, and Z-direction
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High thermal stability components
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On-axis probe-to-pad alignment
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Flexibility from hot only to full thermal range of -60°C to +300°C
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Thermally induced drift can be automatically re-aligned for 30 μm pads in a temperature range from -40°C to 150°C (the effective temperature range depends on pad size, probe card holder and probe card)
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3 performance level configurations (fully-shielded / shielded / open)
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Test automation out-of-cassette for higher test cell efficiency for over-night/over-weekend operation
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User-centered design minimizes training costs and enhances efficiency

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Can help to stabilize oscillations in high-gain devices
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Impedance match to low dynamic resistance laser diodes
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Custom configured for your application

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
