Method of reconfiguring uncrowned standard cells and semiconductor apparatus including uncrowned and crowned cells

摘要

A method is applied to reconfigure a set of uncrowned standard cells in a layout of a semiconductor apparatus. Each uncrowned standard cell includes a standard first array. Each standard first array includes a first stacked arrangement of vias interspersed with first segments of corresponding M(i)˜M(N) metallization layers. The M(N) metallization layer includes second segments which connect corresponding first segments of the M(N) metallization layer in the first standard arrays. The method includes crowning each first standard array in the set with a corresponding second standard array, the latter including a second stacked arrangement of vias interspersed with corresponding first segments of corresponding M(N+1)˜M(N+Q) metallization layers. The crowning includes disposing vias in a VIA(N+1) layer so as to be substantially collinear (relative to a first direction), and not substantially collinear (relative to a substantially perpendicular second direction), with corresponding vias in the VIA(N) layer.