Interface Solutions for High End Digital
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Coaxial solutions providing exceptional signal isolation and impedance control, scalable for large package platforms up to 60 Gpbs.
Device Requirements
- Large array packages
- Bandwidth to support fast edge rates
- Low inductance for clean power delivery during output switching
- Low noise for low voltage edge trigger deteection
- High pin-to-pin isolation
Contactor Requirements
- High compliance (>0.4 mm)
- Low force (>20 g)
- Low contact resistance (>50 mΩ)
- High current (150 A)
Applications
- Processors: microprocessors, graphics processors, application processors
- Logic: ASICs, PLDs, FPGAs, and display drivers
Test Contactor (Socket) / Probe Head Solutions
ACE Contactor / Probe Head
Cost Efficient RF Contactor for FBGA and Wafer-Level Packages
ACE Test Contactor offers 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 and superior performance for current consumption, gain, standard deviation, and power efficiency.
ACE Probe Head provides exceptional electrical performance, both DC and RF and is manufactured from HyperCore™ base material, which is a proprietary material of Cohu’s ECT Contact Product Group.
Compatible with all device types, platings, and pitches; and all test applications, including singulated devices, strip test and wafer-scale test. The materials and architecture create a very robust probe with a very working life and best yield. The electrical and mechanical performance, combined with the long probe life, deliver low overall cost of test, which are unprecedented for RF contactors.
Atlas Contactor / Probe Head
Optimal Performance for Large I/O count Devices and High-End Digital Test
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 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.
The cruciform tip provides increased tip rigidity with a much greater immunity to breakage. The advantages for the customer include increased run times between contactor cleaning, increased probe life, increased yield, and reduced system down time for contactor maintenance.
cBoa Contactor / Probe Head
Cost-Effective, High-Performance Contactor or Probe Head for High-Volume Production Test
cBoa contactors and probe heads are the solution 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 homogenous 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. With a bandwidth up to 27 GHz, cBoa can be used to test some of the highest frequency devices.
The enhanced compliance window accommodates package stack height tolerances well.
cRacer Contactor / Probe Head
Lowest COT for next-generation 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 150 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.
ICON Coaxial Contactor
Coaxial production solution for testing high end digital applications to 60 Gbps
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 ICON’s 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).
Mercury Contactor / Probe Head
Industry preferred high performance, high value, low cost QuadTech contacting solution
Mercury 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.
MiCon Contactor
Proven cantilever technology for MCUs and ASICs
MiCon 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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