Test Contactors/Probe Heads
Cohu's line of test contactors, test sockets, and probe heads.
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Product
Test Contactor/WLCSP Probe Head
ACE
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ACE™ test sockets offer optimal RF performance for fine pitch FBGA, QFN and wafer-level packages for Power Amplifiers, RF switches and mobile communications. Supporting pitches down to 0.4 mm, ACE features an innovative design that provides superior performance, improved yields and power efficiency.ACE probe heads deliver exceptional electrical performance, both DC and RF. Manufactured from HyperCore™ base material, a proprietary material of Cohu’s Everett Charles Technologies, ACE probes have the electrical properties of BeCu with the non-oxidizing properties of a precious metal. The short signal path, sharp tips, and large contact area between plungers provide high current conductance and reliable contact with less force.
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Product
Test Contactor/Probe Head
Atlas
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QuadTech™ probe solution with cruciform tip strength that stands up to lateral force without bending, plus an enhanced compliance window to accommodate package stack height tolerance.Atlas™ test contactor offers electrical performance that allows the customer to test to the true performance of the device. Atlas WLCSP test contactors achieve mechanical reliability with a rigid “cruciform” tip applied to Cohu’s QuadTech flat probe technology. The Atlas offers a short electrical path, with lower capacitance and inductance, that is ideal for functional and AC parametric testing of WLCSP devices that require high system bandwidth and throughput gains in large multisite test applications.
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Product
Test Contactor/Probe Head
cBoa
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cBoa™ test contactors and probe heads are the solutions for contacting high-frequency devices for package test or final test at wafer. The robust design and materials of the cBoa probe withstand the rigors of high-volume test by providing longer life and higher yield. The homogeneous DUT side plunger provides longer run times between cleaning and increased probe life.The cBoa features a stainless-steel spring for tri-temp testing and performs in operating temperatures of -55°C to +155°C and bandwidth of up to 35 GHz @ -1 dB.
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Product
Kelvin Test Contactor
cCompact
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cCompact™ test contactor offers a reduced site-to-site pitch concept enables high parallel test for power applications on strip test and pick and place handler platforms.Featuring compact Kelvin footprint with outstanding CRES stability by Denmark pin material. Automotive temperature range -60°C to +175°C. Integrated Socket Air-distribution.
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Product
Kelvin Test Contactor
cCruiser
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cCruiser™ Kelvin contactor was designed with cost of test optimization in mind, boasting a cantilever design that allows the testing of challenging discrete ICs and small logic package types. Providing a best-in-class proven lifespan of up to 5 million touchdowns increasing handler uptime. cCruiser reduces the cost of test for customers significantly, lasting longer and testing longer than previous contact solutions.
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Product
Turret Kelvin Test Contactor
cHybrid
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cHybrid™ Kelvin contactor contains a new and unique contact spring architecture which allows the test socket to adapt to challenging IC pad geometry requirements of todays and future small package types. Great lifetime up to 3 million touchdowns, with best-in-class contact resistance repeatability reduces cost of test significantly. A multi-beam contact structure optimizes signal integrity and current capability according to challenging electrical test requirements.cHybrid Kelvin contactor with multi-beam contact spring architecture delivers improved yield and long life minimizing cleaning cycles. This innovative solution will help customers reduce cost and maximize productivity.
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Product
Test Contactor
cDragon
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cDragon™ Test Contactor pin’s thermal design supports fast temperature control response and stabilization for repeatable at temperature testing of devices in a handler environment.The homogenous MEMS elastomer-free multi-beam pin delivers long life and high wear resistance. By design the cDragon’s pin decouples insertion motion from the test-interface-board side of the pin. This eliminates test-interface-board pad wear.
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Product
Test Contactor
cGator
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cGator™ singulated power contactor is a top and bottom contacting solution for power Known Good Dies (KGD).Cohu´s patent pending Volta-Flux™ MEMS probe architecture technology provides stable and low CRES for very challenging high-voltage and high-current requirements.The gentle-touch feature reduces surface impacts to a minimum while providing a reliable contact force.
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Product
Kelvin Test Contactor/Probe HEad
cPython
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cPython™ Kelvin contactors and probe heads provide superior electrical and thermal performance with significant cost savings. This makes cPython Kelvin ideal for lab and high-volume production test of analog and mixed signal integrated circuits – for applications such as power control, A-D and D-A converters, audio, video, power amplifiers, photonics, optical MEMS and sensors.cPython Kelvin probes are electrically isolated and mechanically independent force and sense paths for true Kelvin contact for taking accurate measurements, even under high current conditions. These robust probes provide hundreds of thousands of insertions or touchdowns, and a bandwidth up to 26 GHz.
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Product
Test Contactor/Probe HEad
cRacer
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The cRacer™ test contactor and probe head portfolio offer solutions for 5G mmWave FR2 up to 54+ GHz.cRacer utilizes robust spring probe technology for testing singulated packages or probe heads for wafer probe (bumped/pad) applications with fine pitch and WLCSP compatibility – ranging from 100 µm to 650 µm, covering the majority of 5G devices.cRacer features a stainless-steel spring for tri-temp testing and performance in operating temperatures -55°C to +155°C.
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Product
Probe Head
cViper
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cViper™ is an ultra-fine pitch probe head for RF and high speed digital WLCSP. cViper is ideal for lab and large volume production test for precision analog, RF, sensors and mobility devices. Low loop inductance and high bandwidth up to 27 GHz, cViper offers low and stable contact resistance for singulated devices or wafer-level test. A variety of contact materials to optimize performance are available with device pitch down to 100 µm.
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Product
Kelvin Test Contactor
ecoAmp
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ecoAmp™ Kelvin test contactor has a durable monolithic pin design with low and stable contact resistance. It is a high-power cantilever kelvin contactor with a patented spring and tip design for optimum heat dissipation. This ensures best reliability, long spring life and high yield even under highest current and temperature requirements. Featuring extended Automotive temperature range -60 ̊C to +175 ̊C, capable to stand thermal stress during high-power test. The contact motion is decoupled from the test board.
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Product
Kelvin Test Contactor/Probe Head
Gemini
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At 3.22 mm test height, the Gemini™ Kelvin test contactor is an excellent all-around spring probe with low inductance, high bandwidth, and excellent current-carrying capacity. The device under test (DUT) side tip design accurately maintains its 100 µm spacing for the life of the probe. Customers report typical probe life of 500 k to 800 k package insertions, or over 2M touchdowns at wafer-level test. The offset tip allows manageable board layout with a board-side spacing of 0.4 mm.Gemini Kelvin probes and contactors provide a first-rate solution that effortlessly makes reliable, true Kelvin contact for high-volume final test of both singulated packages and wafer-level devices. Gemini Kelvin is an ideal solution for devices such as power controllers, A-D and D-A converters, power amplifiers and audio and video circuits.
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Product
Test Contactor/Probe Head
Hydra
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Engineered for excellence and efficiency, Hydra™ spring probe series offers precision, reliability, and standardized semiconductor test interface.Designed to be best-in-class at a competitive price point, Hydra is optimized to maximize your operational efficiency. Hydra is built to withstand demanding high-volume manufacturing test environments with its robust and durable design.With a common test-height, Hydra offers the ability to mix and match power, RF, and Kelvin probes within the same test socket. In addition, Hydra streamlines inventory management with fewer probe part numbers to manage and shorter lead times.
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Product
Coaxial Test Contactor
ICON
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The ICON™ test contactor designed specifically for maintaining the native impedance of the device-under-test (DUT) through the contactor to the test system, maximizing high frequency power transfer by minimizing signal reflections (Return Loss).The metal body is a Faraday shield/cage, which reduces cross talk (electromagnetic radiation) the primary cause of signal jitter. Along with this, the aluminum body blocks both static and non-static external electric fields (random noise). Featuring exceptional DC and RF performance and excellent thermal management.
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Product
Test Contactor/Probe Head
Mercury
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Mercury™ test probes and contactors are excellent spring probes for the laboratory though they were designed with the robust qualities needed for high-volume production test. Their unique design ensures excellent plating quality for low, consistent resistance, long life, and high-test yields.Mercury probes are available with minimum pitches of 0.3 mm, 0.4 mm, 0.5 mm, and 0.8 mm, to provide the best performance at any device pitch. Mercury probes have bandwidths of up to 22 GHz, and can carry over 3 Amps of current. The Mercury is an excellent choice for any test application.
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Product
Kelvin Test Contactor
nano
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nano Kelvin™ test contactor is a well-established Cantilever Kelvin test contactor with proven performance in the automotive market and further increasing popularity due to the robustness and reliability of the product.Featuring a small imprint area, contact motion decoupled from the test board and simple and cost-efficient test boards.
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Product
Test Contactor
RF Scrub
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RF Scrub™ Test Contactor’s innovative design combines an extremely short signal path (0.90mm test height) with high wear resistance pins that can operate in a wide temperature range.The RF Scrub Test Contactor’s long-life, elastomer free design and easy field maintainability makes it an optimal solution for testing of high-performance devices.The RF Scrub design minimizes load board wear and with the unique pin base material and plating, the cleaning intervals can last up to 100,000 cycles.
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Product
Test Contactor/Probe Head
xWave
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Highest performance and most robust RF broadband production solution for package, wafer, or Over-the-Air (OTA) test for 100 GHz.The xWave™ test contactor / probe head utilizes patented hybrid contacting technology to optimize RF performance and provide robustness for production testing of the most challenging cmWave and mmWave devices. Inside the xWave test contactor / probe head are embedded patch antennas and coplanar waveguides for both wireless and wired communication.
