Cohu, Inc.
We are a global leader in test handling, thermal subsystems, package inspection, contactors and MEMS test solutions used by the semiconductor industry.
- 858.848.8000
- 858.848.8180
- info@cohu.com
- 12367 Crosthwaite Circle
Poway, CA 92064
United States of America
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Product
MEMS Magnetic Sensor Test
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Cohu offers a big variety of magnetic test solutions applying magnetic field in all three dimensions. Depending on the requirements we can integrate coils with and without magnetic core, single- or Helmholtz coils, as well as permanent magnets, static and rotating.
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Product
Modular Gravity Handler For Small Devices
Rasco SO2000
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Modular designed gravity handler with various input and output possibilities. SO2000 can handle the smallest possible packages for gravity and provides a broad range of Sensor and MEMS applications.
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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
Interface Solutions
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Cohu is the market leader in semiconductor test sockets and has 50+ years of semiconductor test expertise providing optimal test contactor and probe pin solutions for every type of application and challenge, using innovative and sophisticated R&D methods.We offer a full suite of test contactors that provide the electrical interface between the tester and the semiconductor device presented by the test handler; optimizes signal performance via an array of consumable probe pins.
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Product
MEMS Optical Sensor Test
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For optical sensor test Cohu offers a variety of solutions being driven by requirements for tri-temp, parallelism and stimulus spacing. Customized optical stimulus units are integrated into Cohu’s test handling systems. For light detector test, we implement different types of light sources, such as infrared, ambient- and colored light. We offer different solutions for 3D image sensors combining emitter and receiver tests of LiDAR, Time of Flight and Structured Light devices.
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Product
Gravity Test Handlers
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Extremely small to very large packages, very wide temperature range, high throughput octal site and quad site testing.
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Product
Scalable Multi-Channel Active Thermal Control (ATC)
T-Core Thermal Control System
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Cohu’s proprietary T-Core thermal system’s controller provides precise, multi-site temperature management of power dissipation ICs, such as graphic chips and CPUs, optimizing test yield.The T-Core thermal control system optimizes test yield at cold, ambient, and hot temperatures and offers better than +/- 1°C accuracy with response speeds of >125°C/sec. The system’s flexibility to control air, liquid, and refrigerant based thermal heads gives semiconductor manufacturers excellent temperature control capability for high volume manufacturing.
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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/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
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
MEMS And Sensor Test Automation Platform
Sense+
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Sense+™ ultra-precise MEMS & sensor test automation platform allows for significant improvement in test accuracy, parallelism for a lower cost of test, and the ability to handle and inspect, small delicate sensors. Fully configured, Sense+ delivers a one-pass automated test, inspection, and metrology for the most complex MEMS devices including <1 mm WLCSP.
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Product
Environment And Burn-in Temperature Chambers
9000 Series
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Delta 9000 Series Temperature Chambers offer a wide choice of temperature ranges and capacities in addition to smart electronics. Field proven by satisfied customers for over four decades, Delta chambers are quality instruments that provide service longevity and integrity unique in their field. Over the years, Cohu has added advanced features to the proven basic chamber design and has refined system components and programming capability to deliver outstanding quality and value.
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Product
Inspection & Metrology Platform
Neon
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Neon is Cohu’s next generation inspection platform optimized for small, fragile semiconductors used in automotive, consumer, industrial and medical, and mobility 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
MEMS Microphone Test
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The market is driving the need for improved voice recognition for security, automobile infotainment control, VoIP, accurate language translation, voice-activated consumer devices and high precision hearing aids. The latest next-generation microphones require highly accurate precision testing with SNR tests up to 78 dB with high parallelism, high UPH, in a high volume production environment.


















