Teseda is a company that provides hardware and software tools. Its products include the DI Lab System, a product engineering and failure analysis lab system for device analysis and physical defect isolation; a Diagnostic Test System for stimulus, test pattern debug, validation, and device failure mode stimulation; Defect Isolator, a tool used to traverse through the physical design to trace nets and vias down to the defect location; Curve Tracer, a curve tracing of semiconductor devices to diagnose electrical over-stress failures; etc.