jeet_asic
Full Member level 3
What are DFT (Design for test) circuits. Are these circuits assembled inside every IC. How does it test functioning of main IC in which it has been connected. Does it check functioning of IC everytime or once ?
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Design for Test would refer to the layout of the pcb.
To allow easy access to important test points on the board using standard test equipment.
The idea is to make testing of the circuit as easy and as cheap as possible.
In my knowledge , to aid in post-silicon , silicon debug n test , all new generation processors have some inbuilt circuits used specifically for testing. These are called Design for test circuits .'Design for Test' is a broad term that has nothing to do with IC's or any specific circuit.