Cohu, Inc.
We are a global leader in test handling, thermal subsystems, package inspection, contactors and MEMS test solutions used by the semiconductor industry. We provide our customers with outstanding products and services that reflect our commitment to operational excellence, innovation and market leadership. Delta Design's engineering and manufacturing plant Cohu, Inc. was founded in 1957 and is comprised of three business units, Delta Design, Rasco and Ismeca.
- 858.848.8000
- 858.848.8180
- info@cohu.com
- 12367 Crosthwaite Circle
Poway, CA 92064
United States
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MEMS Optical Sensor Test
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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Test Contactor/Probe Head
Mercury
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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Turret Kelvin Test Contactor
cHybrid
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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Highest Throughput For Fragile Devices
Ismeca NY20
20-position turret platform for semiconductor test, inspection and packaging, provides the highest quality yield and throughput. It integrates innovative hardware and software technology such as intelligent features that enable extended autonomous operation and productivity.
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Test Contactor
RF Scrub
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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Probe Head
cViper
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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Semiconductor Test Platform
Diamondx DxV
The Diamondx DxV semiconductor test system provides full ATE performance in a desktop PC footprint. Fully integrated, ultra-compact test system designed to be used in the engineering lab or office. Unlike traditional semiconductor tester solutions that is no mainframe, separate workstation or support cabinets needed. The Diamondx DxV is completely stand-alone, so it can be placed on a bench or desktop:
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High Performance Strip Handler
Rasco Jaguar
Jaguar is designed for high-volume production testing of ICs on a strip format or in device carrier. It is fully automotive qualified for tri-temperature test and the ideal solution for high parallel testing of small packages at short test times, but also for Power and Sensor devices. Due to the integrated vision alignment and high precision linear motors, Jaguar provides high yield and excellent OEE.
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Test Contactor/WLCSP Probe Head
ACE
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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High-Speed Laser Mark Handler
MCT MH-3300
MH-3300™ high-speed laser mark handler is used for marking of 2DID codes on the lead frame in support of strip testing, marking of reject devices, and for final package marking in strip test or assembly operations. The MH-3300 offers unparalleled throughput performance and the best cost-of-ownership in the industry.
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Kelvin Test Contactor
nano
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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InCarrier Loader/Unloader
NY32-LU
NY32-LU™ loader unloader provides a high parallel single solution for singulated and strip IC testing with controlled and sensitive handling. The system is scalable; one system can be used as a Loader or Unloader, or can be reconfigured as a dedicated Loading or Unloading system.
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MEMS Microphone Test
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.