The coordinatograph produced layout would then be photographically reduced 100 : 1 to create the production photomask.
2.
A technician would then use a coordinatograph to precisely cut the rubylith and a knife to peel the appropriate sections away.
3.
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 PC microprocessor.
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