A multilayered integrated circuit and a method of designing a multilayered integrated
circuit are provided. The circuit comprises at least two conductive layers and
extraneous conductive lines placed in the conductive layers. The extraneous conductive
lines are made of a material which is the same as the material in the conductive
layers and have dimensions which are the same as the dimension of the material
in the conductive layers. The extraneous conductive lines perform functions which
are unnecessary to the operation of the integrated circuit and are undistinguishable
from the functional conductive lines, thus burdening the work of a reverse engineer.
The method of designing the multilayered circuit comprises a step of providing
a computer generated representation of the extraneous conductive lines.
