{"id":128,"date":"2025-07-25T11:56:12","date_gmt":"2025-07-25T02:56:12","guid":{"rendered":"https:\/\/www.seiken.co.jp\/english\/wp\/?page_id=128"},"modified":"2025-08-24T18:41:56","modified_gmt":"2025-08-24T09:41:56","slug":"kelvin","status":"publish","type":"page","link":"https:\/\/www.seiken.co.jp\/english\/products\/probe_cards\/kelvin\/","title":{"rendered":"Kelvin Probe Card"},"content":{"rendered":"
\n

The precision solution for four-point probes method<\/h2>\n
\n
\n

Seiken\u2019s Kelvin probe cards are specifically engineered for four-terminal sensing (Kelvin connection) measurements, delivering highly accurate resistance testing for devices. By independently controlling the current (force circuit) and voltage (sense circuit), Kelvin measurements effectively eliminate the impact of contact resistance\u2014capturing the true device resistance (Rs) with precision.
\n
In Kelvin measurements, two terminals must contact a single electrode, such as a solder bump or pad. Seiken\u2019s Kelvin probe cards support fine-pitch measurements starting from electrode pitches as small as 0.35mm. With the ability to reduce the terminal gap to just 0.1mm, stable and reliable contact is achievable even on ultra-small electrodes. (Patent No. 5597108 applies to this design.)<\/p>\n

Seiken offers complete support for the specialized board required for Kelvin probes. From custom fixture design to full manufacturing services, we provide a one-stop solution\u2014ensuring the perfect pairing between your probe card and testing equipment for maximum accuracy and efficiency.<\/p>\n<\/p><\/div>\n

\n \"Kelvin
\n <\/figure>\n<\/p><\/div>\n
\n Kelvin Measurement Method\u200b<\/a>
\n Kelvin Probes \u2013 Key Features & What Sets Them Apart<\/a>\n <\/div>\n<\/section>\n
\n