Rg. Filippi et al., THE EFFECT OF CURRENT-DENSITY AND STRIPE LENGTH ON RESISTANCE SATURATION DURING ELECTROMIGRATION TESTING, Applied physics letters, 69(16), 1996, pp. 2350-2352
Resistance saturation as a function of current density and stripe leng
th has been investigated for a two-level structure with Ti/TiN/AlCu/Ti
/TiN stripes and interlevel W stud vias, A simple model relating the r
esistance change at saturation to the current density and stripe lengt
h is formulated for structures with short stripe lengths and blocking
boundaries at both ends. Experimental results for stripe lengths of 25
, 50, or 100 mu m are in good agreement with the model predictions. (C
) 1996 American Institute of Physics.