METHOD FOR POSITIONING AND TRANSFERRING AT LEAST TWO DIFFERENT PATTERNS FROM A SUPPLY STRIP

摘要

A method wherein a supply strip (bm) is entrained at a constant speed, which speed is the same as that of the substrate in strip form (c), during transfer between strips of each pattern and according to a speed profile which is determined between two transfers of the patterns. There is determination of the speed profile by measuring the time which elapses between the passages of two homologous references (m 1 ) of two successive groups of areas specific to the patterns to be deposited. From this time there are deduced the times of displacements of the supply strip (bm) during the transfers of the two patterns, calculation of the length between the respective adjacent patterns (HSUBi/SUB, FSUBi/SUB, GSUBi/SUB) on the supply strip (bm), and that length is compared with the length of the displacement between the respective locations of the two same successive patterns on the substrate (c), in order to make the transfer of the said patterns coincide with their respective locations on the said substrate (c).