Cov txheej txheem tsim khoom PCBA suav nrog PCB pawg thawj coj ua, kev tsim khoom thiab tshuaj xyuas, kev ua haujlwm nti, kev ua haujlwm txuas, kev ua haujlwm kub hnyiab, kev sim, kev laus thiab cov txheej txheem ntau lawm, cov khoom siv thiab kev tsim khoom yog qhov ntev, ib qho tsis xws luag hauv ib qhov txuas yuav ua rau ntau PCBA pawg thawj coj saib tsis zoo, ua rau muaj qhov tshwm sim loj.Yog li, nws yog ib qho tseem ceeb tshwj xeeb los tswj tag nrho cov txheej txheem tsim khoom PCBA.Kab lus no tsom mus rau cov hauv qab no ntawm kev txheeb xyuas.
1. PCB board manufacturing
Tau txais PCBA kev txiav txim tuav lub rooj sib tham ua ntej tsim khoom yog qhov tseem ceeb, tshwj xeeb tshaj yog rau PCB Gerber cov ntaub ntawv rau kev txheeb xyuas cov txheej txheem, thiab tsom mus rau cov neeg siv khoom xa cov ntaub ntawv kev tsim khoom, ntau lub tuam txhab me tsis tsom rau qhov no, tab sis feem ntau muaj teeb meem zoo los ntawm PCB tsis zoo. tsim, ua rau muaj coob tus rework thiab kho ua hauj lwm.Kev tsim khoom tsis muaj qhov tshwj xeeb, koj yuav tsum xav txog ob zaug ua ntej koj ua thiab ua haujlwm zoo ua ntej.Piv txwv li, thaum txheeb xyuas cov ntaub ntawv PCB, rau qee qhov me me thiab ua rau tsis ua haujlwm ntawm cov khoom siv, nco ntsoov kom tsis txhob muaj cov ntaub ntawv siab dua hauv cov qauv tsim, kom lub taub hau hlau rework yooj yim rau kev khiav lag luam;PCB qhov sib nrug thiab pawg thawj coj saib kev sib raug zoo, tsis txhob ua rau khoov lossis tawg;kev xaim seb puas yuav xav txog kev cuam tshuam cov teeb liab siab, impedance thiab lwm yam tseem ceeb.
2. Cheebtsam kev yuav khoom thiab tshuaj xyuas
Cov khoom sib txuas yuav tsum tau tswj hwm nruj ntawm cov channel, yuav tsum yog los ntawm cov tub lag luam loj thiab cov khoom lag luam qub, 100% kom tsis txhob muaj cov khoom siv thib ob thiab cov khoom cuav.Tsis tas li ntawd, teeb tsa cov khoom tshwj xeeb los soj ntsuam txoj haujlwm, kev tshuaj xyuas nruj ntawm cov khoom hauv qab no kom ntseeg tau tias cov khoom tsis muaj kev txhaum.
PCB:reflow qhov cubntsuas kub, txwv tsis pub cov kab ya ya, seb lub qhov yog thaiv los yog xau number case, seb lub rooj tsavxwm yog khoov, thiab lwm yam.
IC: xyuas seb lub silkscreen thiab BOM puas zoo ib yam, thiab ua qhov ntsuas kub thiab av noo tas li.
Lwm yam khoom siv: xyuas cov silkscreen, tsos, lub zog ntsuas tus nqi, thiab lwm yam.
Cov khoom soj ntsuam raws li cov qauv qauv, qhov feem ntawm 1-3% feem ntau
3. Patch ua
Solder paste printing thiab reflow qhov cub kub tswj yog lub ntsiab lus tseem ceeb, yuav tsum tau siv cov khoom zoo thiab ua tau raws li cov txheej txheem yuav tsum tau laser stencil yog qhov tseem ceeb heev.Raws li cov kev xav tau ntawm PCB, ib feem ntawm qhov yuav tsum tau nce lossis txo qhov stencil, lossis siv U-shaped qhov, raws li cov txheej txheem yuav tsum tau ua rau kev tsim cov stencil.Reflow soldering cub kub thiab ceev tswj yog ib qho tseem ceeb rau solder paste infiltration thiab solder kev ntseeg tau, raws li ib txwm SOP kev khiav hauj lwm cov lus qhia rau kev tswj.Tsis tas li ntawd, qhov yuav tsum tau ua nruj me ntsis ntawmSMT AOI tshuabtshuaj xyuas kom txo qis tib neeg qhov tshwm sim los ntawm qhov tsis zoo.
4. Insertion processing
Plug-in txheej txheem, rau tshaj-yoj soldering pwm tsim yog lub ntsiab lus tseem ceeb.Yuav ua li cas siv cov pwm tuaj yeem ua rau qhov ua tau zoo tshaj plaws ntawm kev muab cov khoom zoo tom qab lub qhov cub, uas yog PE engineers yuav tsum tau ua raws li kev xyaum thiab kev paub hauv cov txheej txheem.
5. Kev tua hluav taws
Hauv daim ntawv tshaj tawm DFM ua ntej, koj tuaj yeem hais qhia rau tus neeg siv khoom kom teeb tsa qee cov ntsiab lus xeem (Test Points) ntawm PCB, lub hom phiaj yog los ntsuas PCB thiab PCBA Circuit Court conductivity tom qab soldering tag nrho cov khoom.Yog tias muaj cov xwm txheej, koj tuaj yeem hais kom tus neeg siv khoom muab qhov kev pab cuam thiab hlawv qhov kev pab cuam rau hauv lub ntsiab tswj IC los ntawm cov hluav taws kub (xws li ST-LINK, J-LINK, thiab lwm yam), kom koj tuaj yeem kuaj xyuas cov kev hloov pauv tau coj los. los ntawm ntau yam kev ua haujlwm kov ntau dua intuitively, thiab yog li kuaj qhov ua haujlwm ncaj ncees ntawm tag nrho PCBA.
6. PCBA board kuaj
Rau kev txiav txim nrog PCBA kev xeem cov cai, cov ntsiab lus tseem ceeb ntawm kev xeem muaj ICT (Hauv Circuit Test), FCT (Function Test), Hlawv Hauv Kev Xeem (kev xeem laus), ntsuas kub thiab av noo, ntsuas poob, thiab lwm yam, tshwj xeeb raws li tus neeg siv khoom kuaj. kev khiav hauj lwm qhov kev pab cuam thiab cov ntsiab lus qhia cov ntaub ntawv yuav ua tau.
Post lub sij hawm: Mar-07-2022