Cov txheej txheem sab hauv ntawm PCB

Kev tsim cov qauv sab hauv ntawm cov ntawv luam tawm yog ib kauj ruam tseem ceeb hauv kev tsim hluav taws xob, thiab nws qhov raug thiab zoo muaj feem cuam tshuam rau kev ruaj ntseg thiab kev ntseeg siab ntawm cov khoom siv hluav taws xob. Hauv kev tsim cov qauv sab hauv ntawm cov laug cam, cov txheej txheem xws li zaj duab xis lamination, raug, kev loj hlob, thiab etching yog qhov tseem ceeb.

Thawj kauj ruam yog txheej txheem zaj duab xis lamination. Lamination yog thawj kauj ruam hauv kev tsim cov qauv sab hauv thiab tseem yog cov txheej txheem tseem ceeb hauv tag nrho cov txheej txheem luam tawm Circuit Board. Lub hom phiaj ntawm kev kho ua ntej txheej yog tsim cov txheej txheem tiv thaiv ntawm cov ntawv ci tooj liab npog cov txheej txheem los tswj cov etching thiab tshuaj lom neeg ntawm cov ntawv ci tooj liab ntawm lub rooj tsavxwm. Cov txheej txheem ua ntej lamination siv lub hauv paus ntsiab lus ntawm photoinduced polymerization cov tshuaj tiv thaiv, uas pib tom qab cov yeeb yaj kiab photosensitive absorbs ultraviolet lub teeb. Los ntawm kev siv cov cuab yeej tshaj lij, tag nrho cov yeeb yaj kiab photosensitive yog sib npaug ntawm cov ntawv ci tooj liab npog txheej, thiab tom qab ntawd raug rau hluav taws xob ultraviolet, cov yeeb yaj kiab photosensitive yog polymerized ntawm cov ntawv ci tooj liab nyob rau hauv excitation ntawm ultraviolet hluav taws xob los tsim ib txheej tiv thaiv.

Tom ntej no yog cov txheej txheem raug. Lub hom phiaj ntawm kev nthuav tawm yog hloov cov qauv Circuit Court thiab cov qauv ntawm cov ntawv luam tawm Circuit Board tsim cov ntaub ntawv mus rau cov yeeb yaj kiab photosensitive ntawm Circuit Board, tsim cov qauv. Thaum lub sij hawm raug tus txheej txheem, nws yog tsim nyog los siv high-zog ultraviolet teeb thiab ultraviolet lo ntsiab muag mus rau hloov cov qauv ntawm lub teeb kis kab mob los ntawm photosensitive zaj duab xis mus rau tooj liab ntawv ci los ua tus qauv.

Tom qab ntawd muaj txoj kev txhim kho. Txoj kev loj hlob yog hais txog kev tshem tawm cov txheej tiv thaiv ntawm cov yeeb yaj kiab photosensitive ntawm tag nrho cov ntawv luam tawm Circuit Board los ntawm kev kho tshuaj, nthuav tawm cov ntawv ci tooj liab qhov twg cov yeeb yaj kiab photosensitive tseem nyob. Kev tsim kho yuav tsum tau siv cov tshuaj tsim tawm kom tshem tawm cov txheej txheem tiv thaiv ntawm cov qauv uas tsis yog Circuit Court, nthuav tawm cov ntawv ci tooj liab thiab tsim cov qauv hauv Circuit Court.

Cov txheej txheem etching yog cov kauj ruam tseem ceeb tshaj plaws hauv kev tsim cov ntawv luam tawm hauv Circuit Court, nrog lub hom phiaj ntawm kev tshem tawm cov txheej txheem tiv thaiv thiab ua rau cov ntawv ci tooj liab tag nrho npog cov qauv hauv Circuit Court. Cov txheej txheem etching txais cov ntsiab lus ntawm cov tshuaj corrosion, uas tshem tawm cov kab tsis zoo ntawm cov txheej txheem tiv thaiv los ntawm acidic lossis alkaline tshuaj daws teeb meem, ua tiav kev sib cais ntawm cov kab thiab tsis kab. Nyob rau hauv cov txheej txheem no, nws yog ib qho tsim nyog los tswj cov tshuaj lom neeg los tswj tus nqi ntawm cov tshuaj tiv thaiv thiab qhov kub thiab txias ntawm cov tshuaj chemical, thiaj li yuav xyuas kom meej qhov tseeb thiab zoo ntawm cov qauv Circuit Court.