Ekwenziweni kwezinto zikagesi zanamuhla, inqubo yokukhiqiza yamabhodi wesifunda we-PCB inquma ukusebenza nokuthembeka komkhiqizo. Phakathi kwazo, inqubo yokuthuthukiswa iyisixhumanisi esibalulekile kwinqubo yokukhiqiza ye-PCB, ethinta ngokuqondile ukunemba nokunemba kwehluzo zebhodi lesifunda. Ngakho-ke, ukuqonda inqubo yokuthuthukiswa kuzosiza wonke umuntu ukuthi aqonde kangcono amandla aphelele abakhiqizi bebhodi lesifunda le-PCB.
一、Uhlolojikelele lwenqubo yokuthuthukisa
Inqubo yokuthuthukisa isho inqubo lapho okokusebenza kwe-photosensitive (imvamisa i-photoresist yefilimu eyomile noma i-photoresist yefilimu emanzi) embozwe kwi-substrate kuvezwa khona bese izingxenye ezingaveziwe zikhishwa ngonjiniyela wamakhemikhali phakathi nenqubo yokukhiqiza ye-PCB. Inhloso yale nqubo ukulondoloza izindawo ezithile ze-photosensitive material, ngaleyo ndlela kwakhiwe iphethini yesifunda ukulungiselela inqubo yokuqopha elandelayo.
二、Izinyathelo zenqubo yokuthuthukisa
Kubakhiqizi bebhodi lesekethe le-PCB, inqubo yokuthuthukisa imvamisa ihlanganisa lezi zinyathelo ezilandelayo:
I-photoresist yokumboza: Faka ungqimba lwezinto ezizwelayo izithombe ngokulinganayo endaweni engaphansi ukuze uqinisekise ukujiya kokunamathela okufanayo kokuchayeka okulandelayo.
Ukuchayeka: Iphethini yesekethe eklanyelwe iboniswa ku-substrate embozwe ngezinto ezithatha izithombe ngemishini yokuchayeka enembayo ephezulu, okubangela ukusabela kwamakhemikhali ezingxenyeni ezithile zezinto ezithinta izithombe.
Ukuthuthukiswa: I-substrate eveziwe iyacwiliswa noma ifuthwe kumthuthukisi ukuze kukhishwe okokusebenza okungacacile kwe-photosensitive futhi kuvezwe ingaphezulu le-substrate ukuze kwakhe iphethini yesekethe.
Ukuhlanza nokomisa: Ngemva kokuthi ukuthuthukiswa kuqediwe, hlanza ukuze ususe izinsalela zonjiniyela, bese womisa ukuze ulungiselele inqubo yokubhala elandelayo.
三、Ukubaluleka kwenqubo yokuthuthukisa
Ukubaluleka kwenqubo yokuthuthukiswa ekukhiqizeni ibhodi lesifunda le-PCB kubonakala ikakhulukazi kulezi zici ezilandelayo:
Ukunemba kwephethini: Inqubo yokuthuthukisa ithinta ngokuqondile imininingwane nokunemba kwephethini yesifunda. Inqubo yokuthuthukisa enhle kakhulu ingaqinisekisa ukunemba kwemigqa emihle kanye nesikhala, ngaleyo ndlela ithuthukise ukusebenza okuphelele kwebhodi lesifunda.
Ukuthuthukiswa kwesivuno: Ngokulawula ngokuqinile isikhathi sokuthuthukisa nokugxilisa ingqondo kanjiniyela, izinga lokungasebenzi lingancishiswa ngempumelelo futhi izinga lokukhiqiza likhuphuke, okubalulekile kubakhiqizi bebhodi lesekethe le-PCB.
Ukuthembeka okuthuthukisiwe: Ukuthuthukiswa okunembile akugcini nje ngokunquma ukusebenza kwebhodi lesifunda, kodwa futhi kusiza ukuthuthukisa ukwethembeka okuphelele komkhiqizo, ikakhulukazi imikhiqizo ye-elekthronikhi esebenza ezindaweni eziphakeme kanye nezinga lokushisa eliphezulu.
四、Izici ezithinta ikhwalithi yenqubo yokuthuthukisa
Empeleni, izinto eziningi zithinta ikhwalithi yenqubo yokuthuthukisa, okuhlanganisa:
Ukukhethwa kwezinto ezithinta izithombe: izinhlobo ezahlukene zezinto ezithatha izithombe zinezici ezihlukile zokuthuthuka, abakhiqizi bebhodi lesifunda le-PCB badinga ukukhetha into efanele ngokuya ngezidingo zomkhiqizo.
Ukunemba kwemishini yokuchayeka: okokusebenza kokuchayeka okunembe kakhulu kuyisidingo esibalulekile sokuqinisekisa umphumela wokuthuthukiswa, futhi ukuguga noma ukulinganiswa okungalungile kwesisetshenziswa kuzothinta ngqo ikhwalithi yokuthuthukiswa.
Izimo zokuthuthuka: ukugxila, izinga lokushisa kanye nesikhathi sokuthuthukiswa sonjiniyela sizothinta umphumela wokuthuthukiswa, futhi umenzi udinga ukulungisa ngokuvumelana nesimo sangempela.
Inqubo yokuthuthukisa ingenye yezinqubo ezibalulekile zabakhiqizi bebhodi lesekethe le-PCB, futhi ikhwalithi yayo ihlobene ngokuqondile nokusebenza kwemikhiqizo nokuncintisana kwemakethe. Ngokuqhubeka nokusungula izinto ezintsha kanye nokuthuthukiswa kwenqubo, abakhiqizi be-PCB bazoqhubeka nokudala imiphumela emihle embonini yokukhiqiza izinto zikagesi ukuze bahlangabezane nezidingo zemakethe ezishintshayo.