In order to avoid simultaneous operations causing power supply voltage drop, we change the duty of clock signals for each scan chain. Shift Shift ... There is no need of a complex clock control to avoid the overlapping of the clock signals sent to different scan chains. ... Test circuit(The bottom diagram is 1 enlargement of a section of scan chain D) has four independent scan chains, A, B, C and D, . 82.
|Publisher||:||IEEE - 2002|