Dab tsi yog qhov tsos thiab muaj pes tsawg leeg ntawm cov ntawv luam tawm Circuit Board?

Kev sib xyaw

Covtam sim no Circuit Boardyog tsim los ntawm cov hauv qab no
Kab thiab qauv (Pattern): Cov kab yog siv los ua ib qho cuab yeej rau kev coj ua ntawm cov khoom qub.Nyob rau hauv kev tsim, ib tug loj tooj liab nto yuav tsim raws li ib tug grounding thiab fais fab mov txheej.Kab thiab kos duab yog ua tib lub sijhawm.
Dielectric txheej: siv los tswj cov rwb thaiv tsev ntawm cov kab thiab txheej, feem ntau hu ua substrate.
Los ntawm qhov / vias: Los ntawm lub qhov tuaj yeem ua rau ntau tshaj li ob txheej ntawm cov kab hluav taws xob sib txuas nrog ib leeg, qhov loj dua los ntawm lub qhov yog siv los ua ib feem plug-ins, thiab tsis yog los ntawm qhov (nPTH) feem ntau yog siv los ua qhov chaw mounting, nws yog siv los kho cov ntsia hlau thaum lub sij hawm sib dhos.Solder resistant / Solder Mask: Tsis yog txhua qhov chaw tooj liab yuav tsum tau noj cov tin, yog li cov cheeb tsam uas tsis yog-tin yuav raug luam tawm nrog ib txheej ntawm cov khoom (feem ntau yog epoxy resin) uas cais cov tooj liab los ntawm kev noj tin. .luv Circuit Court ntawm kab uas tsis noj tin.Raws li cov txheej txheem sib txawv, nws muab faib ua roj ntsuab, roj liab thiab xiav roj.
Silk screen (Lus dab neeg / Marking / Silk screen): Qhov no yog qhov tsis tseem ceeb.Lub luag haujlwm tseem ceeb yog kos lub npe thiab txoj haujlwm ntawm txhua qhov ntawm lub rooj tsavxwm, uas yooj yim rau kev saib xyuas thiab kev txheeb xyuas tom qab sib dhos.
Nto Finish: Txij li cov tooj liab nto tau yooj yim oxidized nyob rau hauv ib puag ncig, nws tsis tuaj yeem tinned (tsis zoo solderability), yog li nws yuav raug tiv thaiv ntawm tooj liab nto uas yuav tsum tau noj tin.Cov txheej txheem kev tiv thaiv muaj xws li tshuaj tsuag tin (HASL), tshuaj kub (ENIG), nyiaj (Immersion Silver), tin (Immersion Tin), organic solder tiv thaiv tus neeg sawv cev (OSP), txhua txoj kev muaj qhov zoo thiab qhov tsis zoo, sib sau ua ke hu ua kev kho saum npoo.

Sab nrauv

Lub rooj tsavxwm liab qab (tsis muaj ntu ntawm nws) kuj tseem hu ua "Printed Wiring Board (PWB)".Lub hauv paus phaj ntawm lub rooj tsavxwm nws tus kheej yog ua los ntawm cov khoom siv insulating uas tsis yooj yim khoov.Cov khoom siv hluav taws xob nyias uas tuaj yeem pom ntawm qhov chaw yog tooj liab ntawv ci.Keeb kwm, cov ntawv ci tooj liab npog tag nrho lub rooj tsavxwm, tab sis ib feem ntawm nws tau etched tam sim ntawd thaum lub sijhawm tsim khoom, thiab cov seem seem tau los ua ib qho mesh zoo li nyias nyias..Cov kab no yog hu ua cov qauv neeg xyuas pib lossis cov xaim, thiab yog siv los muab kev sib txuas hluav taws xob rau cov khoom ntawm PCB.
Feem ntau cov xim ntawm PCB yog ntsuab lossis xim av, uas yog xim ntawm lub npog ntsej muag.Nws yog ib txheej txheej tiv thaiv insulating, uas tuaj yeem tiv thaiv cov hlau tooj liab, tiv thaiv luv luv los ntawm yoj soldering, thiab txuag nyiaj ntawm cov khoom siv.Ib lub ntsej muag txhob lo lo ntxhuav kuj luam tawm ntawm daim npog ntsej muag.Feem ntau, cov ntawv thiab cov cim (feem ntau yog dawb) yog luam tawm ntawm qhov no los qhia txog txoj haujlwm ntawm txhua qhov ntawm lub rooj tsavxwm.Lub vijtsam luam ntawv sab tseem hu ua cov lus dab neeg sab.
Hauv cov khoom kawg, kev sib xyaw ua ke ntawm cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob (xws li resistors, capacitors, connectors, thiab lwm yam) thiab lwm yam khoom siv hluav taws xob tau teeb tsa rau ntawm nws.Los ntawm kev sib txuas ntawm cov xov hlau, kev sib txuas hluav taws xob hluav taws xob thiab kev ua haujlwm tau zoo tuaj yeem tsim.