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EASY SCAN undersatnding
Manufacturing Test and DFT
As mentioned previously, once the circuit design has been proven and characterized, the circuit moves into volume
manufacturing. At that time emphasis shifts from design concerns to manufacturing concerns. Screening for
manufacturing defects becomes the main focus of test. Structural Vectors become important in this phase to ensure high
fault coverage and quality. These tests are sometimes called Defected-Oriented tests because they are designed to detect
specific defects. Structural vectors are often based upon a gate level circuit model, and their goal |
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