1. Txhim kho qhov sib xws ntawm etching tus nqi ntawm PCB substrate thiab substrate. Nyob rau hauv tas li ntawd substrate etching, qhov ntau uniform lub etching tus nqi yog, qhov ntau uniform lub etching substrate yog tau. Cov txheej txheem etching yeej ib txwm tswj xyuas qhov zoo tshaj plaws etching tej yam kev mob, xaiv ib tug etching tov uas yog ib qho yooj yim rau regenerate thiab compensate, thiab yooj yim los tswj tus nqi etching. Xaiv cov thev naus laus zis thiab cov khoom siv uas tuaj yeem muab cov kev ua haujlwm tas li thiab tswj tau ntau yam kev daws teeb meem los ntawm kev tswj cov tooj liab yaj, pH tus nqi, kev daws teeb meem, kub thiab kev daws teeb meem.
2. Lub uniformity ntawm etching tus nqi ntawm tag nrho cov substrate yog siab, thiab etching uniformity ntawm lub sab sauv thiab sab hauv ntawm lub substrate thiab lub etching uniformity ntawm lub rooj tsavxwm nto yog txiav txim los ntawm lub uniformity ntawm lub etchant. Nyob rau hauv cov txheej txheem pcb etching, cn / yog siab tshaj lub rooj tsavxwm nto. Txij li thaum cov tshuaj tsub zuj zuj ntawm cov phaj saum npoo ua rau cov txheej txheem etching tsis muaj zog, qhov teeb meem ntawm qhov tsis sib xws ntawm sab sauv thiab sab etching tuaj yeem daws tau los ntawm kev kho cov tshuaj tsuag lub siab ntawm sab sauv thiab qis nozzles. Ib qho teeb meem tshwm sim hauv kev tsim hluav taws xob hluav taws xob yog tias nws nyuaj rau etch tag nrho cov board nto tib lub sijhawm. Nws yog ib txoj hauv kev zoo los siv txoj kev txau kom yoj lub nozzle. Nws tuaj yeem ua tiav los ntawm kev hloov cov tshuaj txau ntawm qhov chaw thiab ntug ntawm lub phaj thiab sib cuam tshuam etching rau pem hauv ntej thiab nram qab kawg ntawm lub phaj, uas tuaj yeem txhim kho qhov sib xws ntawm etching.