Delay Testing with Double Observations

نویسندگان

  • Huawei Li
  • Zhongcheng Li
  • Yinghua Min
چکیده

T h e m a i n d z f i c u l t y f o r d e l a y t e s t z n g c o m e s f r o m t h e h u g e n u m b e r of p a f h s a n d Ihe large p e r c e n t a g e o f de lay u n t e s t a b l e p a t h s Thzs p a p e r p r e s e n t s a n a p p r o a c h t o de lay t e s t zng math doub le o b s e r v a t z o n s , whzch p r o t u d e s a hzgh p a t h de lay f a u l t coverage by t e s t zng a s m a l l R u m b e r of p a t h s B u t , f o r e a c h t e s t pazr , i t zs n e c e s s a r y t o s a m p l e t h e p r r m a r y o u t p u t twrce , o n e be fore a n d a n o t h e r a f t e r t h e t r a n s r t r o n T h e p a p e r p r e s e n t s h o w t o select t h e v e r y l zmr ted n u m b e r of p a t h s , t e r m e d h a r m p l e p a t h s , a n d ho iv t o g e n e r a t e t h e t e s t paar a n d t h e o b s e r v a t i o n t z m e s f o r t h e s a m p l e p a t h s F u r t h e r m o r e , t h e n u n i b e r of s a m p l e p a t h s zs h e a r t o t h e n u m b e r o f g a t e s an t h e czrcuat u n d e r t e s t , despz t e e x p o n e n t i a l g r o w t h zn t h e n u i n b e r of szngle p a t h s B a s e d o n t h e a n n l y t i c a l d e l a y m o d e l [ ' I r m o s t o f t h e p a t h s a r e d e l a y t e s tab le , iuhzch m a k e s t h e d e l a y t e s t g e n e r a t i o n easaer t h a n t h a t based o n szngle p a t h sensatzzatzon la] D e l a y t e s t i n g zs z m p o r t a n t f o r hagh speed ICs

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تاریخ انتشار 1998