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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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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Scalable Multi-Channel Active Thermal Control (ATC)
T-Core Thermal Control System
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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Test Contactor/Probe Head
Atlas
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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High Parallel Test Handlers
High parallelism test in strip or singulated device batch handling on carriers, WLCSP post singulation test.
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Coaxial Test Contactor
ICON
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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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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Kelvin Test Contactor/Probe Head
Gemini
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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Flexible Test And Scan Solution For FFC Devices
Ismeca NY32W
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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Interface Solutions
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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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.
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Turret Test And Scan Handlers
Turret platforms for semiconductor test, inspection and packaging.
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Test Contactor
MiCon
The MiCon™ Test Contactor is spring pin footprint compatible supporting advanced temperature requirements as well as advanced power/current requirements. The footprint compatibility allows for easy and cost-efficient conversion from spring pin setups. The fully decoupled load board side of the spring ensure no degradation of the load board pad.MiCon features a single piece design, which ensures a long lifespan, low and stable contact resistance, high current carrying capability and an extended temperature range. The MiCon allows for testing at full specification values. The extended operating range accommodates device lead trim and form variability such as device alignment accuracy and device lead coplanarity.
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Modular Gravity Handler For Small Devices
Rasco SO2000
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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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.