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BOST (built out self test), puts the high performance test unit on the performance-board and achieves high performance measurement. We focused on D/A and A/D converter testing and developed a BOST which is placed on the performance board and measures and analyzes the electrical D/A and A/D characteristics, statically, such as nonlinearity error, with high resolution and high accuracy in short periods by using a conventional logic tester in the factory. This report describes the outline of BOST and the effect for improvement of test accuracy, and reduction of test time. |
