Dab tsi yog qhov cuam tshuam ntawm solder tiv xim rau PCB?

Lub PCB pawg thawj coj saib tsis yog xim ntau dua, qhov tseem ceeb dua.

Qhov tseeb, cov xim ntawm PCB board nto yog xim ntawm daim npog ntsej muag.Ua ntej, lub solder tiv thaiv tuaj yeem tiv thaiv qhov tsis ncaj ncees lawm ntawm cov khoom.Qhov thib ob, nws tuaj yeem ncua kev pabcuam lub neej ntawm cov khoom siv, txhawm rau tiv thaiv oxidation thiab corrosion ntawm lub Circuit Court.

Yog tias koj paub ntau ntxiv txog PCB pawg thawj coj saib ntawm HUAWEI, Ericsson thiab lwm lub tuam txhab loj, koj yuav pom tias cov xim feem ntau yog ntsuab.Vim tias cov tshuab xim ntsuab rau PCB pawg thawj coj saib yog qhov paub tab thiab yooj yim tshaj plaws.

Tsuas yog ntsuab, muaj ntau xim ntawm PCB, xws li: dawb, daj, liab, xiav, sub lub teeb xim, thiab txawm chrysanthemum, ntshav, dub, kaj ntsuab, thiab lwm yam. teeb.Kev siv lwm cov xim feem ntau yog rau lub hom phiaj ntawm kev sau cov khoom.PCB ua lub tuam txhab cov khoom lag luam los ntawm R & D kom loj hlob ntawm tag nrho cov theem, raws li kev siv sib txawv ntawm PCB pawg thawj coj saib, lub rooj tsavxwm kev sim yuav siv ntshav, lub rooj tsavxwm tseem ceeb yuav siv liab, lub computer sab hauv lub rooj tsavxwm yuav siv dub, tag nrho cov uas yog rau paub qhov txawv thiab cim los ntawm xim.

PCB feem ntau yog lub rooj tsavxwm ntsuab, tseem hu ua roj ntsuab, thiab nws cov tshuaj tiv thaiv tus number case muaj keeb kwm ntev tshaj plaws, pheej yig tshaj thiab nrov tshaj plaws.Cov roj ntsuab muaj ntau yam zoo dua li cov cuab yeej paub tab:

Hauv kev ua PCB, kev tsim cov khoom siv hluav taws xob suav nrog cov phaj ua thiab lamination.Thaum lub sijhawm no, muaj ntau yam txheej txheem los ntawm chav teeb daj, thiab ntsuab PCB board muaj qhov pom kev zoo tshaj plaws hauv chav teeb daj.Qhov thib ob, nyob rau hauv SMT PCB pawg thawj coj saib, cov kauj ruam ntawm tinning, lamination thiab AOI pov thawj tag nrho xav tau qhov chaw kho qhov muag thiab calibration, thiab ntsuab PCB yog zoo dua nyob rau hauv ntsuas ntsuas.

Ib feem ntawm cov txheej txheem tshuaj xyuas yog nyob ntawm kev soj ntsuam ntawm cov neeg ua haujlwm (tam sim no feem ntau ntawm lawv siv rab koob ya davhlau es tsis txhob siv phau ntawv ua haujlwm).Lawv pheej ntsia ntawm lub rooj tsavxwm nyob rau hauv lub teeb muaj zog, thiab kev puas tsuaj ntawm ntsuab rau ob lub qhov muag yog qhov tsawg.Lub rooj tsavxwm ntsuab PCB yog ib puag ncig zoo dua qub, thiab tom qab siv cov khoom siv kub kub, nws yuav tsis tso cov pa phem.

Lwm cov xim ntawm PCB, xws li xiav thiab dub yog doped nrog cobalt thiab carbon feem.Vim lawv tsis muaj zog conductive, muaj kev pheej hmoo ntawm luv luv Circuit Court.

Xws li lub rooj tsavxwm dub, feem ntau yuav ua rau muaj xim sib txawv vim cov txheej txheem thiab cov khoom siv raw cov teeb meem hauv kev tsim khoom, uas ua rau siab PCB qhov tsis xws luag.Lub routing ntawm dub Circuit Court board tsis yog ib qho yooj yim los txheeb xyuas, uas yuav ua rau kom qhov nyuaj ntawm tom qab tu thiab debugging.Yog li ntawd, ntauPCB sib dhos manufacturerstsis siv dub PCB board.Txawm hais tias nyob rau hauv kev lag luam tub rog thiab kev lag luam tswj, cov khoom lag luam nrog cov kev xav tau zoo kuj tseem siv ntsuab PCB board.

Dab tsi yog qhov cuam tshuam ntawm solder resist number case ntawm PCB board?

Rau cov khoom tiav, qhov cuam tshuam ntawm cov inks sib txawv ntawm lub rooj tsavxwm yog qhov tseem ceeb hauv qhov tsos.Piv txwv li, ntsuab suav nrog hnub ntsuab, lub teeb ntsuab, tsaus ntsuab, matte ntsuab thiab lwm yam.Yog tias cov xim yog lub teeb dhau, Tom qab cov txheej txheem ntsaws lub qhov, cov tsos ntawm lub rooj tsavxwm yuav pom tseeb.Qee cov tuam txhab lag luam muaj teeb meem tsis zoo, resin thiab dye ratio, thiab yuav muaj npuas thiab lwm yam teeb meem Tshawb xyuas me ntsis xim hloov.Rau cov khoom lag luam semi-tiav lawm, qhov cuam tshuam feem ntau yog cuam tshuam los ntawm qib nyuaj hauv kev tsim khoom.Cov lus nug no nyuaj me ntsis los piav qhia.Cov xim sib txawv muaj cov txheej txheem xim sib txawv, suav nrog electrostatic txau, txau thiab tshuaj ntsuam luam ntawv, thiab tus number case piv kuj txawv.Yog tias muaj qhov yuam kev me ntsis, xim yuav mus tsis ncaj ncees lawm.

Txawm hais tias tus cwj mem xim tsis muaj kev cuam tshuam rau PCB lub rooj tsavxwm, tus number case tuab muaj qhov cuam tshuam zoo rau impedance.Tshwj xeeb tshaj yog rau dej kub board, nws tswj lub thickness ntawm number case nruj heev.Tus number case liab, tuab thiab npuas yog qhov yooj yim los tswj, thiab tus number case liab tuaj yeem npog qee qhov tsis xws luag ntawm lub voj voog, uas yog qhov zoo dua qub, tab sis qhov tsis zoo yog tias tus nqi kim dua.Thaum kuaj pom, qhov tshwm sim liab thiab daj yog qhov ruaj khov dua, thiab xim dawb yog qhov phem tshaj los tswj.

Hauv cov ntsiab lus, xim tsis muaj kev cuam tshuam rau kev ua haujlwm ntawm lub rooj tsavxwm tiav, thiab muaj kev cuam tshuam me ntsis rauSMT PCBboard thiab lwm yam txuas.Hauv PCB tsim, nruj me ntsis tswj txhua yam hauv txhua qhov txuas yog tus yuam sij rau lub rooj tsavxwm zoo PCB.Cov xim sib txawv ntawm PCB pawg thawj coj saib, feem ntau yog ua kom zoo dua ntawm cov khoom, peb tsis pom zoo xim raws li qhov tseem ceeb hauv kev ua PCB.