A reverse fill pattern is used in an integrated circuit (IC) that
comprises a metal layer having slots formed therein in the shape of
rhombuses. The distribution of rhombic slots ensures that electrical
current is evenly distributed in the conductor, even at the edge regions
of the conductor. This even distribution of rhombic slots ensures that
electrical current is evenly distributed at least in the central region,
and in most if not all cases, across the entire region of the conductor
including the edge regions. Thus, the reverse fill pattern prevents
current crowding. By preventing current crowding, more stringent metal
distribution targets can be met without creating or exacerbating problems
associated with IR drop and EM, and without having to add any extra metal
to avoid such problems.