Logic kỹ thuật số thử nghiệm và mô phỏng P6
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Digital circuits have always been designed to operate beyond the point where they could be reliably manufactured on a consistent basis. It is a simple matter of economics: By pushing the state of the art—that is, aggressively shrinking feature sizes, then testing them and discarding those that are defective—it is possible to obtain greater numbers of ICs from a single wafer than if they are manufactured with more conservative feature sizes (cf. Section 1.8 for more discussion on this practice). This strategy depends on having access to complex, and sometimes very expensive, test equipment. This strategy also depends on being...
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