US 7,480,888 B1
Design structure for facilitating engineering changes in integrated circuits
Clarence Rosser Ogilvie, Huntington, Vt. (US); Charles B. Winn, Colchester, Vt. (US); David Wills Milton, Underhill, Vt. (US); Kenneth Anthony Lauricella, Colchester, Vt. (US); Nitin Sharma, South Burlington, Vt. (US); Paul Mark Schanely, Essex Junction, Vt. (US); Robert Dov Herzl, South Burlington, Vt. (US); Robert Spencer Horton, Colchester, Vt. (US); Tad Jeffrey Wilder, South Hero, Vt. (US); and Douglas P. Nadeau, Underhill, Vt. (US)
Assigned to International Business Machines Corporation, Armonk, N.Y. (US)
Filed on May 21, 2008, as Appl. No. 12/124,771.
Int. Cl. G06F 17/50 (2006.01)
U.S. Cl. 716—14  [716/1; 716/14; 716/18; 716/19] 3 Claims
OG exemplary drawing
 
1. A design structure embodied in a machine-readable medium, the design structure comprising:
a flexible logic block to facilitate engineering changes at selected locations within an integrated circuit, the flexible logic block capable of performing different logical operations, the flexible logic block comprising:
a circuit comprising a plurality of inputs and at least one output; and
a metal interconnect structure coupled to the plurality of inputs and enabling connection of each of the plurality of inputs to one of several electrical potentials using a focused-ion-beam tool, thereby enabling the circuit to perform different logical operations.