ALEXANDRIA, Va., May 26 -- United States Patent no. 12,639,506, issued on May 26, was assigned to Amazon Technologies Inc. (Seattle).
"Via ladder check" was invented by Adi Mashiah (Ganne Tiqwa, Israel).
According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques to verify the connectivity between standard cell pins and via ladder structures can include obtaining a mapping of standard cell pins to respective via ladders' characteristics, and determining a sufficient number of connections for connecting a standard cell pin to a corresponding via ladder in an integrated circuit design based on the via ladder characteristics of the standard cell pin. A data structure that models the integrated circuit design as a r...