printers for high resolution transparency photomasks

[Mikael Evander]

Hi. 


Does anyone know what kind of printers the companies that offer high resolution transparency photomasks use? I'm not talking about a really good office printer but the professional stuff. I've seen masks with features down to 10 um that looks really nice but I have no idea how expensive those printing systems are and if it is something that would be possible to acquire for a lab. 


thanks and best regards 


Mikael 
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