A. 6 pcb Lub Hoobkas Txheej txheem
1. Ntau dhau etching ntawm tooj liab ntawv nyiaj
Lub electrolytic ntawv ci siv nyob rau hauv kev ua lag luam feem ntau yog ib leeg-sided tooj liab daim plating) thiab ib leeg hu ua liab ntawv ci). Cov tib neeg tooj liab ntawv ci yog feem ntau galvanized tooj liab ntawv ci saum 70um, liab ntawv ntawv thiab 18um. Cov hauv qab no hing ntawv ci tsis muaj batch kev cia siab. Thaum cov Circuit Tsim Qauv yog qhov zoo dua li cov kab etching, yog tias tooj liab ntawv tsis hloov, qhov no yuav ua rau cov ntawv xov tooj liab nyob ntev.
Vim tias zinc yog xub thawj cov hlau uas nquag, thaum lub taub hau tooj liab ntawm cov kab ua ke, nws yuav ua rau muaj qee yam kev sib cais thiab sib cais los ntawm cov hlau hluav taws xob, uas yog tus tooj liab hlau poob tawm.
Lwm qhov xwm txheej yog tias tsis muaj teeb meem nrog PCB etching tsis muaj nyob ib puag ncig los ntawm qhov seem uas yog etching daws ntawm PCB saum npoo. Yog tias nws tsis ua tiav rau lub sijhawm ntev, nws tseem yuav ua rau muaj xov tooj hlau ntau dhau etching thiab tsis lees. Tooj liab.
Cov xwm txheej no feem ntau muaj feem xyuam ntawm nyias txoj kab, lossis thaum huab cua yog noo, zoo sib xws yuav tshwm sim rau tag nrho PCB. Strip lub tooj liab xaim kom pom tias cov xim ntawm nws cov xim sib tiv toj nrog lub hauv paus txheej (qhov thiaj li hu ua rougened nto) tau hloov pauv, uas txawv ntawm tooj liab. Cov ntawv ci xim txawv. Dab tsi koj pom yog thawj lub tooj liab xim ntawm cov hauv qab txheej, thiab lub zog tev ntawm tooj liab ntawv ci ntawm kab tuab kuj yog qhov qub.
2. Lub zos sib tsoo tau tshwm sim hauv PCB ntau lawm cov txheej txheem tau sib cais los ntawm cov txheej txheem los ntawm kev siv tshuab sab nraud
Qhov kev ua tsis zoo no muaj teeb meem nrog kev muab tso rau, thiab lub tooj hlau tooj liab yuav pom tseeb, lossis khawb lossis cov cim rau hauv tib qho kev coj. Tev tawm lub tooj liab xaim ntawm cov khoom siv puas thiab saib cov xim ntxhib lossis cov xim tsis zoo, thiab lub zog tsis zoo ntawm lub tooj liab ntawv yog li qub.
3. Tsim tsis tau pcb circuit tsim
Tsim cov voj voog nyias nrog tuab tooj liab ntawv ci yuav ua kom muaj ntau dhau etching ntawm Circuit Court thiab pob liab liab.
B.Qhov laj thawj rau cov txheej txheem laminate
Nyob rau hauv ib txwm muaj xwm txheej, tus tooj liab ntawv ci thiab prepreg yuav yog feem ntau ntawm cov lawb tawm ntau tshaj 30 feeb, yog li kev nias ntau tshaj li 30 feeb, yog li kev nias ntau tshaj li 30 feeb, yog li cov ntawv kub siab tshaj li 30 feeb, yog li cov ntawv kub siab tshaj tawm ntev tshaj 30 feeb, yog li kev nias ntau tshaj li 30 feeb, yog li kev nias ntau tshaj li 30 feeb, yog li cov ntawv nias rau kev sib txuas ntawm lub tooj liab ntawm lub suab nrov thiab lub substrate hauv lub laminate. Txawm li cas los xij, nyob rau hauv cov txheej txheem ntawm stacking thiab stacking laminates, yog tias tus luam ntawv tsis txaus ntseeg, tab sis cov tev tooj liab uas poob ze rau ntawm cov kab tawm ntawm cov kab tsis txawv txav.
C. Vim li cas Laminate Raw Khoom:
1. Raws li tau hais los saum toj no, zoo tib yam electrolytic tooj liab cov khoom yog txhua yam khoom uas tau raug plated ntawm cov plaub tsiaj ntawv ci. Yog hais tias lub ncov siab ntawm cov tsiaj ntawv ci yog qhov txawv txav, lossis ntawm Galvanizing / tooj plating, ua rau lub tooj liab liab, ua rau lub tooj liab tooj liab ua rau muaj zog. Tom qab cov ntawv tsis zoo ntawm cov ntawv tau nias rau cov ntaub ntawv PC yuav poob tawm vim qhov cuam tshuam ntawm kev quab yuam sab nraud thaum nws yog cov ntsaws rau hauv lub Hoobkas hluav taws xob. Qhov kev tsis zoo no tus me nyuam yaus yuav tsis muaj kev pom tseeb thaum cov ntaub ntawv xov tooj liab tau pom cov khoom siv tooj liab
2. Tsis zoo adappable ntawm tooj liab ntawv ci thiab cob: qee cov laminates nrog cov khoom siv tshwj xeeb, thiab cov cob qhia cov qauv molecular yog yooj yim. Cov degree ntawm crosslinking yog tsawg, thiab nws yog ib qho tsim nyog los siv tooj liab ntawv ci nrog lub ncov tshwj xeeb kom phim nws. Tus tooj liab ntawv ci hauv kev tsim cov laminates tsis phim lub resin system ntawv ci ntawm daim ntawv hlau tshuab nyiaj, thiab tsis zoo tooj liab hlau los ntawm kev tso.