1. Cov cua kub leveling thov rau saum npoo ntawm pcb molten tin tus coj scher thiab ua kom sov compressed cua qib (tshuab tiaj tus txheej txheem) txheej txheem. Ua nws ua cov oxidation tiv taus txheej tuaj yeem muab Weldability zoo. Cov cua kub kub thiab tooj liab ua tus tooj liab-sikkim compound ntawm lub hlws ris ntawm lub hlws ris, nrog ib qho tuab ntawm kwv yees li 1 txog 2mil.
2. Organic sngerability preservative (osp) los ntawm cov tshuaj tua cov organic hlau. Tus PCB multilayer zaj duab xis muaj lub peev xwm tiv thaiv oxidation, tshav kub kom tiv thaiv tus liab sab ntawm xeb (oxidation los yog sulfurization, thiab lwm yam) nyob rau hauv ib txwm muaj mob. Nyob rau tib lub sijhawm, nyob rau tom qab kev sib tw txuas ntxiv kub, vuam flux yooj yim tshem tawm sai sai.

3. Ni-au cov tshuaj co coated tooj liab nto nrog tuab, zoo ni-au cov hluav taws xob cov hluav taws xob tiv thaiv pcb multilayer board. Ntev ntev, tsis zoo li wm, uas tsuas yog siv los ua ib txheej rustproof, nws tuaj yeem siv rau kev siv PCB ntev thiab tau txais lub zog zoo. Ib qho ntxiv, nws muaj kev tiv thaiv ib puag ncig uas lwm cov txheej txheem kho hauv cov txheej txheem kev kho kom tsis muaj.

4. Electroless nyiaj tso nyiaj ntawm osp thiab elec electroless npib tsib xee / kub plating, PCB multilayer txheej txheem yog yooj yim thiab nrawm.

Raug rau kub, noo thiab qias neeg ib puag ncig tseem muab kev ua tau zoo hluav taws xob thiab zoo weldability, tab sis tarnish. Vim tias tsis muaj npib tsib xee nyob rau hauv cov nyiaj txheej, cov nyiaj nag los tsis muaj txhua lub zog zoo ntawm electroless npib tsib xee / kub raus.

5.Tus neeg xyuas tsiaj rau saum npoo PCB Multilayer Board yog plated nrog npib tsib xee, ua ntej nrog ib txheej ntawm nickel thiab tom qab ntawd nrog ib txheej ntawm kub. Lub hom phiaj tseem ceeb ntawm Nickel plating yog kom tiv thaiv cov diffusion ntawm kub thiab tooj. Muaj ob hom Nickel-Plated Kub: Mos Kub (kub kub (ntshiab kub, uas nyuaj, kev hnav-resistant, cobalt thiab lwm lub ntsiab lus zoo dua). Cov kub muag muag yog tsuas yog siv rau Chip ntim roj av kub; Nyuaj kub yog tsuas yog siv rau cov tsis siv hluav taws xob sib txuas.

6. PCB sib xyaw ua ke cov tshuab kev kho mob xaiv ob lossis ntau txoj kev yog: Nickel Plating kub npau suav, hnyav npib kub thiab kub kub kub kub. Txawm hais tias qhov kev hloov pauv ntawm PCB multilayer txheej txheem kev kho deg tsis tseem ceeb thiab zoo li tau txais kev hloov mus ntev yuav ua rau kev hloov pauv qeeb. Nrog rau kev siv nce ntxiv rau kev tiv thaiv ib puag ncig, cov kev kho mob saum npoo ntawm PCB tau ua tiav los hloov pauv yam tsis zoo nyob rau yav tom ntej.