Patent ID: 9396299
Filing Date: 2016-07-19
CPC Classification: G03F,G06F,H01L

Claim Text:
1. A reticle mark arrangement method, comprising: arranging reticle marks at a plurality of places in a kerf region of a reticle; calculating an area of a polygon with apexes at arrangement positions of the reticle marks in the kerf region of the reticle; changing the arrangement positions of the reticle marks in the kerf region of the reticle based on a calculation result of the area of the polygon; bringing the reticle marks into correspondence with misalignment measurement marks for measuring a misalignment of upper and lower layers; and arranging the reticle marks corresponding to the misalignment measurement marks that are not compared with each other at measurement of a misalignment, as close as possible to four corners of the reticle so as not to overlap each other between reticles.