Cov txheej txheem ntawm photochemical hlau etching pib nrog kev tsim cov qauv siv CAD lossis Adobe Illustrator.Txawm hais tias tus qauv tsim yog thawj kauj ruam hauv cov txheej txheem, nws tsis yog qhov kawg ntawm kev suav hauv computer.Thaum lub rendering tiav lawm, lub thickness ntawm cov hlau yog txiav txim raws li tus naj npawb ntawm daim ntawv uas yuav haum rau ib daim ntawv, ib tug tsim nyog yuav tsum tau txo tus nqi ntawm ntau lawm.