VLSI self test circuitry ? Answered
VLSI testing is process that is used to determine that chip is good or faulty
VLSI chip is tested by test equipment and some self test circuit
just for example we made microcontroller then we can test by automatic test equipment , we use test vector to determine fault
1.test vector < microcontroller chip > output response
2.test vector <microcontroller chip + self test circuit > output response
3.test vector <microcontroller chip +fault model +self test circuit > output response
Q I did not understand that self test circuit and fault model built within vlsi chip or we connect external fault model circuit to test VLSI chip ?