Raws li cov engineers, peb tau xav txog txhua txoj kev uas lub kaw lus tuaj yeem swb, thiab ib zaug ua tsis tiav, peb npaj txhij kho nws. Zam kev ua txhaum yog qhov tseem ceeb hauv PCB tsim. Hloov cov kab ke Circuit Court uas raug puas hauv thaj teb tuaj yeem kim, thiab cov neeg siv khoom tsis txaus siab feem ntau kim dua. Qhov no yog qhov laj thawj tseem ceeb kom nco ntsoov peb qhov laj thawj tseem ceeb rau PCB kev puas tsuaj hauv cov qauv tsim: Kev tsim qauv thiab tsim qauv tsis txaus. Txawm hais tias qee qhov ntawm cov yam ntawm cov no yuav tawm ntawm kev tswj hwm, ntau yam tuaj yeem raug txo qis thaum lub sijhawm tsim qauv. Qhov no yog vim li cas npaj rau qhov xwm txheej tsis zoo thaum lub sijhawm tsim muaj peev xwm pab koj pawg thawj coj ua qee yam kev ua tau zoo.
01 Raug Raug
Ib qho ntawm cov laj thawj rau PCB tsim cov tuam tsev kev puas tsuaj yog vim kev tsim khoom tsis xws luag. Cov tsis zoo no tuaj yeem nyuaj rau nrhiav, thiab txawm tias kev kho kom nyuaj rau kev kho thaum pom. Txawm hais tias ib co ntawm lawv tuaj yeem tsim tau, lwm tus yuav tsum tau kho los ntawm cov chaw ua ntawv cog lus (cm).
02 envindmental Factor
Lwm qhov ua rau muaj kev tsim qauv pcb yog qhov chaw ua haujlwm. Yog li ntawd, nws yog ib qho tseem ceeb heev rau tsim cov Cirtral Board thiab rooj plaub raws li ib puag ncig uas nws yuav ua haujlwm.
Thaum tshav kub kub: Circuit Coator tsim cua sov thiab feem ntau raug cua sov kom kub thaum ua haujlwm. Txiav txim siab seb tus qauv PCB yuav ncig nws lub tshav pob, tau nthuav tawm lub hnub ci thiab sab nraum zoov los ntawm lwm qhov chaw nyob ze. Hloov pauv hauv qhov kub thiab txias tuaj yeem tsoo cov pob qij txha sib tsoo, cov khoom siv hauv paus thiab txawm tias lub tsev nyob. Yog tias koj lub voj voog yog qhov kub thiab txias, koj yuav tsum kawm txog cov kev sib cav sib txawv, uas feem ntau ua ntau cov cua sov dua SMT.
Plua plav: hmoov av yog lub laj kab ntawm cov khoom siv hluav taws xob. Xyuas kom meej tias koj rooj plaub muaj qhov tseeb IP ntsuas thiab / lossis xaiv cov khoom uas tuaj yeem ua tau cov dej hiav txwv uas tuaj yeem ua cov txheej txheem plua plav thiab / lossis siv cov tsho tiv thaiv plua plav.
Kev ya ua: Cov av noo ua ib qho kev hem thawj zoo rau cov khoom siv hluav taws xob. Yog tias tus qauv PCB tau ua haujlwm nyob rau hauv ib puag ncig huab cua uas qhov ntsuas kub hloov sai heev, noo noo yuav ua rau ntawm cov huab cua mus rau hauv lub voj voog. Yog li ntawd, nws yog ib qho tseem ceeb kom ntseeg tau tias cov dej noo-ntawv pov thawj tau sib xyaw thoob plaws hauv Circuit Court Board qauv thiab ua ntej kev teeb tsa.
Kev co lub cev: Muaj qhov laj thawj rau kev tshaj tawm hluav taws xob hauv hluav taws xob uas tib neeg muab lawv rau hauv plag tsev. Thaum lub sijhawm ua haujlwm, muaj ntau cov khoom siv yog kev poob siab lossis kev co. Koj yuav tsum xaiv cov tub rog, cov laug cam thiab cov khoom siv raws li kev ua haujlwm txhua yam los daws cov teeb meem no.
03 cov qauv tsim tshwj xeeb
Qhov kawg ntawm PCB tsim cov tuam txhab kev puas tsuaj thaum lub sijhawm ua haujlwm yog qhov tseem ceeb: kev tsim qauv. Yog tias tus kws ua choj lub hom phiaj tsis yog tshwj xeeb kom tau raws li cov hom phiaj ua tau zoo; Nrog rau kev ntseeg tau thiab ntev, qhov no tsuas yog ncav cuag. Yog tias koj xav tau koj cov Circuit Court board mus ntev ntev, nco ntsoov xaiv cov khoom siv hauv Circuit Court, thiab txheeb xyuas tus qauv tsim raws li qhov xav tau ntawm cov qauv.
Cov kev xaiv tiv thaiv: Sij hawm dhau sijhawm, Cheebtsam yuav poob lossis tsis ntau lawm; Txawm li cas los xij, nws tsis tsim nyog rau qhov no tsis ua tiav tshwm sim ua ntej lub neej xav tau ntawm pawg thawj coj. Yog li, koj xaiv yuav tsum ua tau raws li kev xav tau lub neej kev ua haujlwm thaum lub sijhawm tsim nyog lub neej ntawm lub neej kev lag luam.
Xaiv cov khoom siv: ib yam li kev ua haujlwm ntawm cov khoom siv yuav swb dhau lub sijhawm, yog li yuav ua kev ua haujlwm ntawm cov ntaub ntawv. Raug rau tshav kub, thermal cycling, Ultraviolet Lub Teeb, thiab Kev Nyuaj Siab Tuaj yeem ua rau Circuit Courradation thiab thaum ntxov ua tsis tiav. Yog li, koj yuav tsum xaiv cov khoom siv hluav taws xob nrog cov khoom siv luam ntawv zoo raws li hom Circuit Court board. Qhov no txhais tau tias kev txiav txim siab cov khoom siv thiab siv cov khoom siv inert uas haum rau koj tus qauv.
PCB Tsim Txheej Txheej: Untrarmas Pcb Tsim Qauv kuj tseem yuav yog cov hauv paus ua rau ntawm Circuit Court board tsis ua haujlwm thaum lub sijhawm ua haujlwm. Piv txwv li, qhov kev cov nyom ntawm tsis suav nrog cov laug cam high-voltage; xws li HIGH-Voltage Arc nrhiav tus nqi, tej zaum yuav ua rau cov neeg tsav tsheb thiab lub cev puas tsuaj, thiab ua rau raug mob rau cov neeg ua haujlwm.
Kev txheeb xyuas cov qauv tsim: Qhov no yuav yog cov kauj ruam tseem ceeb tshaj plaws hauv kev tsim lub zog txhim khu kev qha. Ua DFM cov tshev nrog koj cov cm. Qee tus CMS tuaj yeem tswj hwm lub zog hloov pauv thiab ua haujlwm nrog cov ntaub ntawv tshwj xeeb, thaum lwm tus tsis tuaj yeem. Ua ntej koj pib tsim, nco ntsoov tias cm tuaj yeem tsim koj txoj kev ncig ua si txoj kev uas koj xav tau, uas yuav ua kom paub meej tias tus qauv tsim qauv pcb zoo dua yuav tsis poob.
Nws tsis yog qhov xav kom xav txog qhov tsis zoo tshaj plaws rau PCB tsim. Paub tias koj tau tsim pawg thawj coj txhim khu kev qha, nws yuav tsis swb thaum lub rooj tsavxwm tau tso rau cov qhua tuaj noj mov. Nco ntsoov peb qhov laj thawj tseem ceeb rau PCB tsim kev puas tsuaj kom koj thiaj li tau txais txoj kev pab pawg board zoo ib yam thiab txhim khu kev qha. Nco ntsoov npaj rau kev tsim cov khoom lag luam tsis xws luag thiab ib puag ncig los ntawm thaum pib, thiab tsom rau kev tsim qauv rau cov xwm txheej tshwj xeeb.