Yuav ua li cas xaiv Surface Finish rau koj tus qauv PCB
--- Tus kws tshaj lij phau ntawv qhia rau PCB nto tiav
Ⅰ Dab Tsi thiab Yuav Ua Li Cas
Tshaj tawm:NovPeb Hlis 15, 2022
Pawg: Blogs
Tags: pcb ua,pcba ua,pcb sib,pcb manufacturers, kev tsim kho pcb
Thaum nws los txog rau saum npoo tiav, muaj ntau yam kev xaiv, xws li HASL, OSP, ENIG, ENEPIG, Hard Gold, ISn, IAg, thiab lwm yam. Qee zaum, nws yuav yooj yim rau kev txiav txim siab, xws li ntug kev sib txuas mus rau qhov nyuaj. kub;HASL lossis HASL-dawb yog qhov zoo dua rau qhov loj dua SMT cov khoom tso.Txawm li cas los xij, nws yuav nyuaj rau xaiv ib qho tiav rau koj HDI boards nrog Ball Grid Arrays (BGAs) yog tias tsis muaj lwm yam lus qhia.Muaj ntau yam xws li koj cov peev nyiaj rau qhov project no, yuav tsum muaj kev ntseeg siab lossis kev txwv rau lub sijhawm ua haujlwm yuav tsum tau txiav txim siab rau qee yam xwm txheej.Txhua hom PCB nto tiav muaj nws qhov zoo thiab qhov tsis zoo, nws yuav ua rau tsis meej pem rau cov neeg tsim qauv PCB los txiav txim siab seb qhov twg yog qhov tsim nyog rau koj lub PCB boards.Peb nyob ntawm no los pab koj txheeb xyuas lawv nrog peb cov kev paub ntau xyoo dhau los ua cov chaw tsim khoom.
1. Dab tsi yog PCB nto tiav
Kev siv qhov chaw tiav (kev kho deg / txheej txheej) yog ib qho ntawm cov kauj ruam kawg ntawm kev tsim PCBs.Qhov saum npoo tiav ua tiav qhov tseem ceeb ntawm lub rooj tsavxwm PCB liab qab thiab cov khoom siv, kev pabcuam rau ob lub hom phiaj tseem ceeb, muab lub ntsej muag zoo rau PCB los ua ke thiab tiv thaiv cov tooj liab uas tseem tshuav nrog rau cov kab, cov ntaub qhwv, qhov thiab cov dav hlau hauv av los ntawm oxidation lossis kev sib kis, thaum lub ntsej muag solder npog feem ntau ntawm cov circuitry.
Niaj hnub nimno deg tiav yog tsis muaj txhuas, raws li kev txwv tsis pub muaj phom sij (RoHS) thiab khib nyiab hluav taws xob thiab Electronic Equipment (WEEE) cov lus qhia.Niaj hnub nimno PCB nto tiav kev xaiv muaj xws li:
- ● LF-HASL (Lead Free Cua Kub Solder Leveling)
- ● OSP (Organic Solderability Preservatives)
- ● ENIG (Electroless Nickel Immersion Kub)
- ● ENEPIG (Electroless Nickel Electroless Palladium Immersion Kub)
- ● Electrolytic Nickel / Kub - Ni / Au (Hard / Mos Kub)
- ● Immersion Silver, IAg
- ●Dawb Tin lossis Immersion Tin, ISn
2. Yuav ua li cas xaiv nto tiav rau koj PCB
Txhua hom PCB nto tiav muaj nws qhov zoo thiab qhov tsis zoo, nws yuav ua rau tsis meej pem rau cov neeg tsim qauv PCB los txiav txim siab seb qhov twg yog qhov tsim nyog rau koj lub PCB boards.Kev xaiv qhov raug rau koj tus qauv tsim yuav tsum tau ua ntau yam rau hauv tus account raws li hauv qab no.
- ★ Nyiaj
- ★ Circuit Court boards zaum kawg daim ntawv thov ib puag ncig (piv txwv li kub, vibration, RF).
- ★ Yuav tsum muaj rau cov neeg thov kev pab dawb, ib puag ncig tus phooj ywg.
- ★ Kev ntseeg tau ntawm PCB pawg thawj coj saib.
- ★ Cheebtsam hom, ceev los yog yuav tsum tau los ua ke xws li xovxwm haum, SMT, hlau bonding, Los ntawm-qhov soldering, thiab lwm yam.
- ★ Kev xav tau rau qhov chaw tiaj tus ntawm SMT pads rau BGA daim ntawv thov.
- ★ Yuav tsum tau rau lub neej txee thiab reworkability ntawm nto tiav.
- ★ Kev poob siab / poob tsis kam.Piv txwv li, ENIG tsis haum rau lub xov tooj ntse txij li lub xov tooj ntse yuav tsum tau tin-tooj liab daim ntawv cog lus rau kev poob siab thiab poob tsis kam es tsis txhob tin-nickel bonds.
- ★ Ntau thiab Tshaj Tawm.Rau qhov ntim siab ntawm PCBs, immersion tin tuaj yeem yog qhov kev xaiv zoo dua thiab muaj txiaj ntsig zoo dua li ENIG thiab Immersion Silver thiab tarnish rhiab heev teeb meem tuaj yeem zam tau.Ntawm qhov tsis sib xws, immersion nyiaj zoo dua ISn ntawm ib pawg me me.
- ★ Susceptibility rau corrosion los yog paug.Piv txwv li, immersion silver finish yog feem ntau creep corrosion.Ob leeg OSP thiab Immersion tin yog rhiab rau kev puas tsuaj.
- ★ Kev zoo nkauj ntawm lub rooj tsavxwm, thiab lwm yam.
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Post lub sij hawm: Nov-15-2022
