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Scan Chain Test Pattern of ATPG tool
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kiranks9



Joined: 21 Feb 2008
Posts: 60
Helped: 1
Post04 Nov 2009 12:36   

Scan Chain Test Pattern
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ATPG tool generates the chain test pattern in the form "001100", why is it so? what is signifcance? why cant generate the 0101010 or "000111000" or other pattern

Kiran KS
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ebuddy



Joined: 15 May 2007
Posts: 28
Helped: 1
Post05 Nov 2009 2:01   

Re: Scan Chain Test Pattern of ATPG tool
Pattern is generated based on the ATPG algrithm. Depending on the DUT logic, the pattern will trigger certain nodes and let you measure the result against the predicated result.
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luwanzen



Joined: 14 Apr 2009
Posts: 2
Post06 Nov 2009 8:20   

Scan Chain Test Pattern of ATPG tool
This sequence produces all four transitions, 0->0,0->1,1->1,and 1->0, in each flip-flop.
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