Patent ID: 8581249

Claim:
A semiconductor substrate, comprising: a wafer; a plurality of stepped structures formed on a surface of said wafer with various area occupation ratios; an interlayer insulation film formed on said surface of said wafer so as to cover said stepped structures, said interlayer insulation film having a planarized top surface, said substrate carrying, on said surface, at least one film-thickness monitoring pattern for monitoring a film thickness of said interlayer insulation film in a state covered by said interlayer insulation film; and a pattern group, formed on said wafer, formed of a plurality of patterns surrounding said film-thickness monitoring pattern, wherein each of said plurality of patterns has a square shape, said plurality of patterns being formed with an area occupation ratio, including said film-thickness monitoring pattern, equal to said area occupation ratio of said stepped structures where said stepped structures are formed either most densely or most sparsely, said wafer car in said film-thickness monitoring pattern and said plurality of patterns on a scribe line on said wafer.