By {HEAD ~ the simple process} of opening {TAIL ~ a single fusible link}, the defective block is disabled and the redundant block is enabled 
of opening
By { HEAD ~ the simple process } of opening { TAIL ~ a single fusible link } , the defective block is disabled and the redundant block is enabled
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH