Patent ID: 7217977

Claim:
A camouflaged circuit structure, comprising: a substrate; a gate structure disposed on the substrate: a plurality of active regions of a first conductivity type disposed in said substrate; and at least one light density doped region having a second conductivity type, said at least one light density dopant region being adjacent to at least one of said plurality of active regions, wherein said camouflaged circuit structure is non-operational for a nominal voltage applied to said camouflaged circuit structure; wherein the gate structure is disposed between two of the active regions, one of the two active regions being said at least one of said plurality of active regions and wherein said at least one of said plurality of active regions has an edge adjacent said gate structure which is spaced a first distance, and wherein the other one of the two active regions has an edge adjacent said gate structure which is spaced a second distance, the first distance being greater than the second distance.