Dab tsi yog xim ntawm lub rooj tsavxwm PCB, raws li lub npe qhia, thaum koj tau txais lub rooj tsavxwm PCB, qhov kev nkag siab zoo tshaj plaws koj tuaj yeem pom cov xim roj ntawm lub rooj tsavxwm, uas yog qhov peb feem ntau hu ua xim ntawm PCB board. Cov xim muaj xws li ntsuab, xiav, liab thiab dub, thiab lwm yam. Tos.

1. Ntsuab number case yog nyob deb ntawm cov khoom siv dav tshaj plaws, ntev tshaj plaws hauv keeb kwm, thiab pheej yig tshaj plaws nyob rau hauv kev ua lag luam tam sim no, yog li ntsuab yog siv los ntawm ntau lub tuam txhab ua cov xim tseem ceeb ntawm lawv cov khoom.

2. Raws li qhov xwm txheej ib txwm muaj, tag nrho cov khoom lag luam PCB yuav tsum dhau los ntawm kev tsim thiab SMT cov txheej txheem thaum lub sijhawm tsim khoom. Thaum ua lub rooj tsavxwm, muaj ntau yam txheej txheem uas yuav tsum tau mus los ntawm chav tsev daj, vim hais tias ntsuab yog nyob rau hauv cov xim daj Cov nyhuv ntawm lub teeb chav tsev yog zoo dua lwm yam xim, tab sis qhov no tsis yog lub ntsiab yog vim li cas.

Thaum soldering Cheebtsam hauv SMT, PCB yuav tsum dhau los ntawm cov txheej txheem xws li solder paste thiab thaj thiab qhov kawg AOI pov thawj. Cov txheej txheem no xav tau qhov chaw kho qhov muag thiab calibration. Cov xim ntsuab tom qab yog qhov zoo dua rau kev txheeb xyuas qhov ntsuas.

3. Cov xim PCB feem ntau yog xim liab, daj, ntsuab, xiav thiab dub. Txawm li cas los xij, vim muaj teeb meem xws li cov txheej txheem tsim khoom, cov txheej txheem tshuaj xyuas zoo ntawm ntau cov kab tseem yuav tsum tau tso siab rau qhov pom ntawm qhov muag pom thiab lees paub ntawm cov neeg ua haujlwm (qhov tseeb, feem ntau ntawm kev sojntsuam ya davhlau yog tam sim no siv). Ob lub qhov muag tsis tu ncua ntsia ntawm lub rooj tsavxwm nyob rau hauv lub teeb muaj zog. Qhov no yog ib qho kev ua haujlwm nyuaj heev. Hais txog kev hais lus, ntsuab yog qhov teeb meem tsawg tshaj plaws rau lub qhov muag, yog li feem ntau cov tuam ntxhab hauv kev ua lag luam tam sim no siv ntsuab PCBs.

4. Lub hauv paus ntsiab lus ntawm xiav thiab dub yog tias lawv muaj feem cuam tshuam nrog cov ntsiab lus xws li cobalt thiab carbon, uas muaj qee yam hluav taws xob conductivity, thiab cov teeb meem luv luv yuav tshwm sim thaum lub hwj chim qhib. Ntxiv mus, ntsuab PCBs kuj yog ib puag ncig tus phooj ywg, thiab nyob rau hauv qhov kub thiab txias ib puag ncig Thaum siv nyob rau hauv nruab nrab, feem ntau tsis muaj tshuaj lom roj yuav raug tso tawm.

Kuj tseem muaj qee tus neeg tsim khoom lag luam hauv khw uas siv cov PCB dub. Cov laj thawj tseem ceeb ntawm qhov no yog ob qho laj thawj:

Zoo siab-kawg;
Lub rooj tsavxwm dub tsis yooj yim pom cov xaim, uas ua rau muaj qee qhov nyuaj rau cov ntawv luam;

Tam sim no, feem ntau ntawm Android embedded boards yog dub PCBs.

5. Txij li thaum nruab nrab thiab lig theem ntawm lub xyoo pua xeem, kev lag luam tau pib ua tib zoo saib cov xim ntawm PCB boards, feem ntau vim hais tias ntau tus thawj-tier manufacturers tau txais ntsuab PCB board xim designs rau high-end boards, yog li cov neeg maj mam ntseeg tias PCB Yog xim ntsuab, nws yuav tsum yog high-end.