US 11,900,041 B2
Via coloring methods and systems
Abhilash Velluridathil Thazhathidathil, Bangalore (IN); Yves Thomas Laplanche, Valbonne (FR); and Ala Srinivasa Rao, Bangalore (IN)
Assigned to Arm Limited, Cambridge (GB)
Filed by Arm Limited, Cambridge (GB)
Filed on Oct. 15, 2019, as Appl. No. 16/653,778.
Prior Publication US 2021/0109999 A1, Apr. 15, 2021
Int. Cl. G06F 30/398 (2020.01); G06F 30/30 (2020.01); G06F 30/392 (2020.01)
CPC G06F 30/398 (2020.01) [G06F 30/30 (2020.01); G06F 30/392 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
identifying prospective zones for placement of one or more vertical interconnect access pads (via) in a cell, wherein each of the prospective zones comprises one or more poly pitches, and wherein each of the prospective zones corresponds to different regions of via connectivity including a power rail connection region, an active connection region, and a poly connection region; and
assigning different colors to each identified prospective zone by assigning a different color to each of the prospective zones that correspond to different regions of via connectivity including a first color to the power rail connection region, a second color to the active connection region, and a third color to the poly connection region.