Patent ID: 8183091
Filing Date: 2012-05-22
Classification: G03F,H01L

Abstract:
1. A method of manufacturing a semiconductor device having a semiconductor substrate including a scribe region and a product region, comprising steps of: (a) forming, in the semiconductor substrate, grooves defining a first dummy pattern, a plurality of second dummy patterns and an active region, wherein the active region is configured to function as a part of a semiconductor element; (b) forming a first insulating film over the semiconductor substrate including the grooves; (c) embedding the first insulating film into the grooves by polishing the first insulating film formed outside of the grooves; (d) forming a target pattern over the semiconductor substrate, wherein the target pattern is comprised of a conductive film and is configured to be used for optical pattern recognition; and (e) after the step (d), forming a mask in the product region by performing alignment by using the target pattern, wherein the active region is formed in the product region, wherein the first dummy pattern, the second dummy patterns and the target pattern are formed in the scribe region, wherein the second dummy patterns are arranged adjacent to the first dummy pattern, wherein widths of each of the second dummy patterns are smaller than a width of the first dummy pattern, wherein each of the second dummy patterns is arranged in a regular pattern in the scribe region, and wherein the target pattern is arranged over the first dummy pattern.