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
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
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
Solution For Test-in-Strip
InCarrier
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The InCarrier process is based on a strip-like device carrier for single devices that combines the advantages of the singulated device test with the advantages of high parallel strip test. Leveraging the strip like design the InCarrier ensures robust test-handling for even smallest devices and supports high parallel test.
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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.
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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
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
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
MEMS And Sensor Test Solutions
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Modular design based on standard handlers, high parallelism, ambient to automotive tri-temp handling.
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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.
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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
High Parallel Test Handlers
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High parallelism test in strip or singulated device batch handling on carriers, WLCSP post singulation test.
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Product
Flexible Test And Scan Solution For FFC Devices
Ismeca NY32W
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32-position turret test and scan platform for semiconductors on film-frame wafer media, providing the highest inspection yield for WLCSP and Bare Dies. Integrating innovative hardware and software technologies such as intelligent features that enable extended autonomous operation and productivity.
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Product
Semiconductor Testers
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Designing and manufacturing scalable Automated Test Equipment (ATE) targeted at testing SOC, MCU, RF PA/FEM, Sensors/MEMS and Power and Analog devices
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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
Tube-To-Tube Gravity Handler
Rasco SO1000
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The SO1000 test handler’s mature design and high reliability it provides excellent cost of test. Highly flexible as a result of a broad range of device kits can be combined with various Sensor and MEMS applications.Featuring a fast plunger with up to four plunger heads for high speed and high throughput with index time down to 500 ms. Available in single, dual, and quad configurations.


















