Hauv kev sib dhos PCBA, kev xaiv cov khoom siv tseem ceeb rau kev ua haujlwm ntawm pawg thawj coj saib thiab kev ntseeg tau.Nov yog qee qhov kev txiav txim siab rau solder, PCB thiab xaiv cov khoom ntim khoom:
Kev txiav txim siab txog kev xaiv solder
1. Lead Free Solder vs Leaded Solder
Lead-free solder yog khoom plig rau nws cov phooj ywg ib puag ncig, tab sis nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias nws muaj qhov kub thiab txias dua.Leaded solder ua haujlwm ntawm qhov kub thiab txias, tab sis muaj kev pheej hmoo ntawm ib puag ncig thiab kev noj qab haus huv.2.
2. Melting point
Xyuas kom meej tias lub melting point ntawm cov xaiv solder yog haum rau qhov kub thiab txias ntawm cov txheej txheem los ua ke thiab yuav tsis ua rau muaj kev puas tsuaj rau lub tshav kub rhiab Cheebtsam.
3. Fluidity
Xyuas kom meej tias lub solder muaj fluidity zoo los xyuas kom meej cov ntub dej txaus thiab kev sib txuas ntawm cov pob qij txha.
4. Thaum tshav kub kub tsis kam
Rau kev siv kub kub, xaiv ib lub solder uas muaj cua sov zoo los xyuas kom meej qhov sib koom ua ke ruaj khov.
Kev xaiv cov khoom siv PCB txiav txim siab
1. Cov khoom siv substrate
Xaiv cov khoom siv substrate tsim nyog, xws li FR-4 (iav fiber ntau reinforced epoxy resin) los yog lwm yam khoom siv high-frequency, raws li daim ntawv thov xav tau thiab zaus yuav tsum tau ua.
2. Cov txheej txheem
Txiav txim siab cov txheej txheem tsim nyog rau PCB kom ua tau raws li qhov yuav tsum tau ua ntawm cov teeb liab routing, hauv av thiab lub zog dav hlau.
3. Yam ntxwv impedance
Nkag siab cov yam ntxwv impedance ntawm cov khoom siv substrate xaiv los xyuas kom meej cov teeb liab kev ncaj ncees thiab phim qhov sib txawv ntawm khub yuav tsum tau ua.
4. Thermal conductivity
Rau cov ntawv thov uas xav tau cov cua kub dissipation, xaiv cov khoom siv substrate nrog thermal conductivity zoo los pab kom cov cua sov.
Kev xaiv cov khoom siv pob khoom xav tau
1. Ntim hom
Xaiv hom pob tsim nyog, xws li SMD, BGA, QFN, thiab lwm yam, raws li hom kev tivthaiv thiab daim ntawv thov.
2. Cov khoom siv encapsulation
Xyuas kom meej tias cov khoom siv encapsulation xaiv tau raws li qhov yuav tsum tau ua ntawm hluav taws xob thiab kev ua haujlwm zoo.Xav txog yam xws li qhov kub thiab txias, tiv thaiv tshav kub, lub zog txhua yam, thiab lwm yam.
3. Ntim thermal ua haujlwm
Rau cov khoom uas xav tau cov cua kub dissipation, xaiv ib lub pob khoom uas muaj thermal ua tau zoo, los yog xav txog ntxiv lub dab dej kub.
4. Pob loj thiab tus pin sib nrug
Xyuas kom meej tias qhov luaj li cas thiab tus pin sib nrug ntawm cov pob khoom xaiv yog tsim nyog rau PCB layout thiab cov txheej txheem layout.
5. Kev tiv thaiv ib puag ncig thiab kev ruaj ntseg
Xav txog kev xaiv cov ntaub ntawv zoo ib puag ncig uas ua raws li cov kev cai thiab cov qauv.
Thaum xaiv cov ntaub ntawv no, nws yog ib qho tseem ceeb uas yuav tsum tau ua hauj lwm nrog PCBA manufacturers thiab lwm tus neeg los xyuas kom meej tias cov khoom xaiv raws li qhov yuav tsum tau ntawm daim ntawv thov tshwj xeeb.Tsis tas li ntawd, kev nkag siab txog qhov zoo, qhov tsis zoo thiab cov yam ntxwv ntawm ntau yam ntaub ntawv, nrog rau lawv qhov tsim nyog rau kev siv sib txawv, yog qhov tseem ceeb rau kev txiav txim siab xaiv.Muab rau hauv tus account qhov sib ntxiv ntawm cov khoom siv solder, PCB thiab cov ntaub ntawv ntim khoom kom ntseeg tau qhov kev ua tau zoo thiab kev ntseeg siab ntawm PCBA.
Zhejiang NeoDen Technology Co., LTD., nrhiav tau nyob rau hauv 2010, yog ib tug kws chaw tsim tshuaj paus tshwj xeeb nyob rau hauv SMT xaiv thiab qhov chaw tshuab, reflow cub, stencil printing tshuab, SMT ntau lawm kab thiab lwm yam SMT khoom.Peb muaj peb tus kheej R & D pab neeg thiab tus kheej lub Hoobkas, ua kom zoo dua ntawm peb tus kheej nplua nuj kev paub R & D, kev cob qhia zoo, tau txais lub koob npe nrov los ntawm cov neeg siv khoom thoob ntiaj teb.
Hauv kaum xyoo no, peb tus kheej tsim NeoDen4, NeoDen IN6, NeoDen K1830, NeoDen FP2636 thiab lwm yam khoom siv SMT, uas muag zoo thoob plaws ntiaj teb.Txog tam sim no, peb tau muag ntau dua 10,000pcs tshuab thiab xa tawm mus rau ntau dua 130 lub teb chaws thoob ntiaj teb, tsim kom muaj lub koob npe nrov hauv kev ua lag luam.Hauv peb lub ntiaj teb Ecosystem, peb koom tes nrog peb tus khub zoo tshaj plaws los xa cov kev pab cuam muag khoom ntau dua, kev ua haujlwm siab thiab kev txhawb nqa zoo.
Post lub sij hawm: Sep-22-2023