An integrated circuit is a product in its final or an intermediate form, intended to perform an electronic function, consisting of a piece of material which includes one or more interconnected layers composed of integrated elements, at least one of which is an active element.

The topography of an integrated circuit is a series of related images, however fixed or encoded, representing three-dimensional pattern of layers of which integrated circuit is composed, whereat each image contains whole or part of the pattern of a semiconductor product in every phase of its production.