ProductsHigh-Current Technology
Enhanced with CNT Plating for better Performance
Traditional contact probes have long relied on surface treatments such as gold (Au) or rhodium (Rh) plating.
While effective for standard applications, these materials can fall short in modern testing
environments—especially when dealing with lead-free solder, aluminum electrodes, or high-current
measurements.
At Seiken, we’ve addressed this challenge by leveraging the unique properties of Carbon Nanotubes
(CNTs). By incorporating CNTs into gold plating, we’ve developed a new high-current probe that delivers
exceptionally low contact resistance and better durability. This technology, was presented at TestConX 2025,
and was even awarded in the poster session for its innovation.
Key Features & Advantages
01 Optimized contact resistance
Our CNT-treated probes maintain stable contact resistance even during continuous high-current conduction. Compared to untreated probes, this minimizes the risk of failure caused by heat and electrical stress, providing reliable performance throughout extended use.
02 Extended probe lifespan
Repeated high-current contact often leads to wear and damage in conventional probes. CNT treatment increases durability, reducing degradation and failure over time—even under demanding conditions.
03 Reliable contact with aluminum electrodes
CNT coatings outperform conventional palladium alloy or gold plating when making contact with aluminum electrodes, providing more consistent and stable electrical connections.
Application Examples
Explore more
- Power device testing: A wide range, from front-end to back-end devices.