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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Camera Link InGaAs SWIR camera
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VGA resolution
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Large pixel with high dynamic
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Strong sensor cooling
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No condensation
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Very strong sensor cooling for low-noise imaging with long exposure times
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Camera Link interface with GenCP support
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Comprehensive I/O control options
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Automated on-board image correction
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Extended operating temperature range

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Different substrate carriers for wafers up to 150 mm or single dies
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Up to six positioners
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Probe positioners placed inside vacuum chamber
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Short and stable probe arms
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Ergonomic and straightforward design
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Intuitive, manual operation
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Independent control of linear chuck stage and positioners
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Contact/separation stroke for probe platen

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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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Fastest Camera Link InGaAs SWIR camera
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VGA resolution
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TECless
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Compact industrial design, no fan
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Simple camera configuration via GenCP
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Compact industrial design
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Up to 301 fps at full resolution
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Simple camera configuration via GenCP
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Comprehensive I/O control options
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Automated on-board image correction

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Provides an effectively noise free environment around the device under test (DUT)
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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)
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Up to 4x faster flicker noise thermal testing on 30 μm pads
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Provides dark and dry environment for measuring light sensitive transistors, and devices at negative temperatures (<= -60°C) with frost free operation
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Provides fully managed and filtered AC power to the entire system – prober and instruments
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Filters harmful noise generated by external thermal control systems
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Reduced “antenna effect” injection of unwanted RF noise into the measurement path
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Provide up to 100dB attenuation (50Hz to 80Mhz) with 100mA max DC current handling
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Ultra-low, fA-level current and fF-level capacitance measurements from -65 °C to + 300 °C
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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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User-centered design minimizes training costs and enhances efficiency
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Test automation out-of-cassette for higher test cell efficiency for over-night/over-weekend operation

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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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Independently cooled cold shield
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Probe positioners placed inside vacuum chamber
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Intuitive, manual drives
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Front loading capability through load door
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Independent control of linear chuck stage and positioners
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Contact/separation stroke for chuck

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Enables wafer probing up to 100 A pulsed and 10A DC
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Innovative multi-fingertip design provides even distribution of current
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Supports up to 500 V
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Replaceable Tungsten probe tips
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Temperature range of -60°C to 300°C
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Minimal contact resistance at the pad-tip junction to reduce heating during measurements, with fewer probe marks
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Prevents against thermal runaway
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Measure devices on wafer at higher currents than ever before
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Small scrub minimizes damage to aluminum pad
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Small footprint – tip fits on a 1 mm pad

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Designed for use with specific Probe Systems
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Tables to suit all facility requirements and applications
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Stable probing, even in submicron range
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Granite platen ensures rigidity and temperature stability
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Can be combined with the Shield Enclosures

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
