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1000th Gemini™ Kelvin Contactor Shipped – A Three Year Success Story

Apr 20, 2010

St.Paul, Minnesota - Multitest’s ECT Interface Products group announces the shipment of its 1000th Gemini™ Kelvin contactor. The customer base for this product consists of satisfied customers around the world. All Gemini™ Kelvin customers have been repeat customers. In just three years, these contactors have become extremely successful because they provide a first-rate solution that effortlessly makes reliable, true Kelvin contact for high-volume final test of both singulated packages and wafer-scale devices.

Gemini™ Kelvin's durable, production-ready design ensures minimal cleaning and reliable contact for hundreds of thousands of device insertions. Customers report typical probe life of 500 to 800k.

Furthermore, Gemini™ Kelvin’s popularity results from industry leading key features and performance. At 0.1 mm, the ECT Gemini™ Kelvin probe offers the smallest DUT-side, tip-to-tip spacing seen in high-volume production environments today. The probe design also allows manageable board layout with a board-side spacing of 0.4 mm.

The contactor design maintains the probe tip positions for excellent alignment of every insertion, ensuring the best possible first-pass yields. At 3.22 mm test height, the Gemini™ Kelvin has an excellent all-around spring probe with an inductance of 1.12 nH, a bandwidth of 16 GHz, and conductance of 1.6 A continuous (6 A at 1% duty cycle).

For more information about Multitest's Kelvin solutions, visit

About Multitest

Multitest (headquartered in Rosenheim, Germany) is one of the world’s leading manufacturers of test equipment for semiconductors. Multitest markets test handlers, contactors, and ATE printed circuit boards under the brands Multitest, ECT Interface Products, and Harbor Electronics. Globally more than 700 employees serve our customers in offices and branches in North America, Singapore, Malaysia, the Philippines, Taiwan, China and Thailand.

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