Cohu Inc.

Description

Cohu develops semiconductor test handlers and contactors, automated test equipment, inspection, and metrology solutions, and data analytics software to optimize semiconductor manufacturing yield and productivity.

• Portfolio of equipment used to automate movement of semiconductor devices, control temperature during test, and provide vision inspection, ensuring quality and optimizing yield in volume production.
• Portfolio of instrumentation and universal platform testing semiconductor devices with best-in-class solutions in RF, digital, and mixed-signal applications, enabling faster time to yield.
• Full suite of test contactors that provide the electrical interface between the tester and the semiconductor device presented by the handler, optimizing signal performance via an array of consumable probe pins.
• Suite of software analytics specializing in AI-powered process control that turns complexity into clarity, driving smarter decisions, faster automation, and measurable business impact across the factory floor.

• Founded: 1947
• Headquarters: San Diego, California, USA
• Website: https://www.cohu.com/

Acquisitions

January 2025: Tignis. AI process control and analytics-based monitoring software.

October 2023: Equiptest Engineering. Semiconductor test contactors and other consumables.

January 2023: MCT Worldwide. Semiconductor test handler automation equipment.

October 2018: Xcerra Corporation for $627M. Semiconductor and PCB test. Parent company for atg-Luther & Maelzer, Everett Charles Technologies, LTX-Credence, and Multitest.

January 2017: Kita Manufacturing for $15M. Spring probe contacts used in final test contactors, probe cards, PCB test boards, and connectors.

January 2013: Ismeca Semiconductor from Schweiter Technologies for $54.5M. Turret-based test handling and back-end finishing equipment for ICs, LEDs and discrete components.

December 2008: Rasco. Gravity-feed and strip semiconductor test handlers.

April 2007: Tandberg Television AVS from Tandberg Television for $8.3M. Digital transmitters, receivers and microwave communications systems.

March 2006: Patents, intellectual property, certain semiconductor burn-in products and other assets from Unisys Corporations Unigen operation.

July 2001: Assets of Schlumberger Semiconductor Solutions’ Automated Systems business for $14.2M.

1983: Delta Design