Test Methods, Requirements, and Guidelines for Evaluation of TID Radiation Sensitivity of Analog to Digital Converters (ADC), Digital to Analog Converters (DAC).
The Aerospace and Electronic Businees Unit is part of the Hirex Engineering, one of the Companies within the Alter Technology Group, owned by TÜV NORD. This engineer service, focus in radiation in electronic devices, shows a Test Vehicle TID. In order to advance the report, a few conclusion had been made by our expertise team. First, is the diffusion lots, the two ones under TID behave the same. They are homogenous which confirms there is no process dispersion. We can observed that no functional failure observed during the test and after annealing. In IOs (LVDS, BIDIR and I2C): No drift out of specification was observed up to 300 krads (Si). Cold Sparing far below 100 nA max specification. Cold spare LVDS IO operates at 2.5V up to 650 Mbps. The lock time measurements: An increase lower than 1% was observed on this parameter. The worst case “Lock time” drift was observed on one biased sample with a time lock decrease of maximum 4%,
The Total Ionizing Dose (TID) radiation test on EEE parts involves a number of variables and processes which must be kept under control to ensure correct test execution and compliance with the used test method. From the test plan definition to the test report issue, proper methodology needs to be put in place.Quality Assurance and Safety at a TID Radiation test laboratory Aspects such as document control (approval, issue, control changes), environmental and test conditions (dosimetry, temperature, biasing), electrical test performance, equipment management (resolution, calibration), test samples identification and handling, ESD control,…, are critical.