Teradyne is a US supplier of automatic test equipment. The company's divisions are Broadband Test, Assembly Test, Semiconductor Test, and Vehicle Diagnostic Solutions.
The Semiconductor Test Division manufactures test equipment used by integrated circuit manufacturers. As of 2006, Teradyne manufactures four principal tester families of testers known as the "Catalyst", "Tiger", "FLEX" and "UltraFLEX". These testers are used by semiconductor manufacturers to test and classify the individual devices on a completed semiconductor wafer and then used again to retest the parts once they are enclosed in their final packaging. Tiger testers are capable of testing SOC devices with more than 1600 pins and data rates extending beyond 3.2 GHz. Portions of this division were acquired when Teradyne purchased Megatest.
Teradyne operates major facilities in North Reading, Massachusetts; Agoura Hills, California; Tualatin, Oregon; Fridley, Minnesota, Deerfield, Illinois and other locations worldwide.