Coordinatograph
From Wikipedia, the free encyclopedia
A coordinatograph is an instrument that mechanically plots X and Y coordinates onto a surface, such as in compiling maps[1] or in plotting control points such as in electronic circuit design.
One historic application of a coordinatograph was a machine that precisely placed and cut rubylith to create photomasks for early integrated circuits, including some of the earliest generations of the modern microprocessors used in personal computers.[2] The coordinatograph produced layout would then be photographically reduced 100:1 to create the production photomask.[3]
