Patent ID: 6878506

Claim:
A method for manufacturing a semiconductor device comprising: a first step of forming a first alignment-measuring mark having a recessed pattern on a surface of a semiconductor substrate, by using a photoetching process; a second step of coating said surface of said semiconductor substrate on which said first alignment-measuring mark is formed, with a photoresist film; a third step of patterning said photoresist film by using a photolithography technique and of forming a photoresist mask with a second alignment-measuring mark on said semiconductor substrate, wherein said second alignment-measuring mark is aligned to be overlaid on said first alignment-measuring mark; hereby measuring a relative deviation from a right alignment between said first alignment-measuring mark and said second alignment-measuring mark; wherein said second alignment-measuring mark is placed at a specified position on said semiconductor substrate so that a ratio between a total area of photoresist-removed portions and a total area of photoresist-remaining portions within a first specified region extending in a first measuring direction from a center of said second alignment-measuring mark is equal approximately to that within a second specified region extending in a second measuring direction opposite to said first measuring direction from said center of said second alignment-measuring mark, said first alignment-measuring mark and said second alignment-measuring mark being located outside a cell region, and said first specified region and said second specified region being set outside said cell region.