Essential Electronic Design Automation (EDA)

Design for Test Tools

Luigi:

Absolutely. But there is a difference between the test for design verification and manufacturing test. In design verification, we are trying to verify that the actual logical design works and does what we intended it to do. We do this both statically (without timing) and dynamically (with timing). It is less expensive to fix a design error the earlier it is caught. So we try to do as much verification as possible, and as early in the design process as possible. In manufacturing test, we assume that the design is correct and focus on the manufactured parts. A defect in manufacture may cause a chip to not work. Many tests must be run on each part and each test adds to the chip cost. So we want to use as few tests as ...