Routing Grid for HP14TB process

• Minimum Spacings are:

  • Via on Via horizontal (via width + M1 spacing) = 4 + 3 =7 lambda
  • Via on Via vertical (via width + M2 spacing) = 4 +3 = 7 lambda
  • Via2 on Via2 horizontal (via width + M3 spacing) = 6 + 3 = 9 lambda

• Using minimum spacings give a M1:M3 ratio of 7:9

  • Odd ratio, Cadence recommends that in this case M1 and M3 grids should be the same (i.e, 1:1 ratio).

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