Ua ntej tsim lub rooj tsav xwm luam tawm, nws yuav tsum tau txiav txim siab seb puas yuav siv ib txheej lossis ntau txheej PCB. Ob hom qauv tsim muaj ntau. Yog li hom twg yog qhov zoo rau koj qhov project? Qhov txawv li cas? Raws li lub npe qhia, ib txheej txheej txheej tsuas muaj ib txheej ntawm cov khoom siv hauv paus, tseem hu ua substrate, thaum lub multilayer PCB muaj ntau txheej.
Qhov zoo thiab kev siv ntawm ib txheej boards
Ib leeg-txheej boards qee zaum hu ua ib leeg-sided boards. Feem ntau hais lus, muaj cov khoom ntawm ib sab ntawm lub rooj tsavxwm thiab cov kab tooj liab nyob rau sab nraud. Lub rooj tsavxwm ib leeg muaj ib txheej txheej, txheej txheej hlau, thiab lub npog ntsej muag tiv thaiv. Zaj duab xis thiab silk screen muaj pes tsawg leeg.
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Qhov zoo thiab qhov tsis zoo ntawm ib txheej PCB
Qhov zoo: tus nqi qis dua, tsim qauv yooj yim thiab ntau lawm, lub sijhawm xa khoom luv
Qhov tsis zoo: Rau cov haujlwm nyuaj, tshwj xeeb tshaj yog thaum cov khoom siv loj, yog tias qhov kev xav tau loj me me, ib lub vaj huam sib luag tsis tuaj yeem ua haujlwm qis dua, qhov loj dua, thiab qhov hnyav dua.
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Ib txheej PCB daim ntawv thov
Ib lub vaj huam sib luag tau dhau los ua qhov kev xaiv zoo tshaj plaws rau ntau yam khoom siv hluav taws xob vim nws cov nqi qis thiab kev tsim khoom yooj yim. Txawm hais tias ntau txheej boards tau dhau los ua ntau thiab nrov dua li kev siv tshuab hluav taws xob ua ntau dua thiab nyuaj, ib txheej boards tseem siv dav. Lawv feem ntau tshwm sim hauv cov khoom siv nrog ib qho kev ua haujlwm thiab tsis tas yuav khaws cov ntaub ntawv ntau lossis nkag mus rau hauv lub network.
Ib txheej PCBs feem ntau yog siv hauv cov khoom siv hauv tsev me me (xws li tshuab kas fes). Lawv kuj yog PCB siv nyob rau hauv feem ntau lub laij lej, xov tooj cua, tshuab luam ntawv thiab LED teeb. Cov cuab yeej cia yooj yim xws li cov khoom siv hauv xeev feem ntau siv cov PCBs ib leeg, xws li cov khoom siv hluav taws xob thiab ntau yam sib txawv ntawm cov sensors.
Qhov zoo thiab kev siv ntawm ntau txheej boards
Multi-txheej PCBs yog ua los ntawm peb los yog ntau tshaj ob-sided boards stacked nyob rau sab saum toj ntawm txhua lwm yam. Feem ntau, tus naj npawb ntawm cov khaubncaws sab nraud povtseg ntawm lub rooj tsavxwm multilayer feem ntau yog cov khaubncaws sab nraud povtseg, ntawm 4 thiab 12 txheej. Vim li cas ho tsis siv tus lej khib ntawm cov khaubncaws sab nraud povtseg? Vim tias qhov khib ntawm cov txheej yuav ua rau muaj teeb meem xws li warpage thiab distortion tom qab vuam.
Muaj cov hlau conductive ntawm ob sab ntawm txhua lub substrate txheej ntawm lub rooj tsavxwm multilayer. Cov nplaum tshwj xeeb yog siv los txuas cov boards ua ke, thiab muaj cov khoom siv insulating ntawm txhua lub rooj tsavxwm. Nyob rau sab nraud ntawm lub rooj tsavxwm multilayer yog lub npog ntsej muag.
Multilayer boards siv los ntawm lub qhov los ua cov txheej txheem sib txawv. Los ntawm qhov feem ntau muab faib ua peb pawg:
Los ntawm lub qhov: los ntawm txhua txheej ntawm lub rooj tsav xwm Circuit Court;
qhov muag tsis pom kev: txuas cov txheej txheej sab hauv rau sab hauv;
faus ntawm: Txuas ob txheej sab hauv, thiab lawv tsis tuaj yeem pom los ntawm sab nraud.
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Qhov zoo thiab qhov tsis zoo ntawm multilayer PCB
Qhov zoo: tuaj yeem ua haujlwm ntau dua, zoo dua, muaj zog dua, muaj peev xwm ua haujlwm ntau dua thiab nrawm dua, txhim kho durability, me me thiab hnyav dua.
Disadvantages: tus nqi siab dua, kev tsim thiab kev tsim khoom nyuaj, lub sijhawm xa khoom ntev dua, kev saib xyuas nyuaj dua.
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Multilayer PCB daim ntawv thov
Nrog rau kev nce qib ntawm thev naus laus zis, multilayer PCBs tau dhau los ua ntau dua. Ntau cov khoom siv hluav taws xob niaj hnub no muaj cov haujlwm nyuaj thiab qhov me me, yog li ntau txheej yuav tsum tau siv rau ntawm lawv cov rooj sib tham.
Multilayer printed circuit boards tshwm nyob rau hauv ntau lub computer Cheebtsam, nrog rau cov motherboards thiab servers. Los ntawm laptops thiab ntsiav tshuaj mus rau cov xov tooj ntse thiab smartwatches. Cov xov tooj ntse feem ntau xav tau txog 12 txheej. Lwm cov khoom lag luam tsis nyuaj li cov xov tooj ntse, tab sis nyuaj heev rau cov ntawv luam tawm ib leeg, feem ntau yog siv 4 mus rau 8 txheej. Xws li microwave qhov cub thiab cua txias.
Tsis tas li ntawd, vim muaj kev ntseeg siab, me me thiab lub teeb tsim tsim los ntawm cov khoom siv kho mob, feem ntau lawv tuaj yeem khiav ntawm lub rooj tsavxwm nrog ntau tshaj peb txheej. Multilayer printed circuit boards kuj siv nyob rau hauv X-ray tshuab, lub plawv saib, CAT scanning khoom thiab ntau lwm yam kev siv.
Kev lag luam automotive thiab aerospace kuj tseem siv cov khoom siv hluav taws xob ntau ntxiv uas yog ob qho tib si ruaj thiab hnav, thiab cov no feem ntau siv cov boards multilayer. Cov khoom no yuav tsum muaj peev xwm tiv taus hnav, kub thiab lwm yam hnyav. On-board computers, GPS systems, engine sensors, thiab headlight keyboards feem ntau kuj siv multilayer boards.
Yuav ua li cas txiav txim siab qhov xav tau ntawm ib txheej lossis ntau txheej PCB
Txhawm rau txiav txim siab seb koj qhov project xav tau ib txheej txheej lossis ntau txheej luam tawm Circuit Board, koj yuav tsum xav txog qhov xav tau ntawm qhov project thiab hom tsim nyog tshaj plaws. Nug koj tus kheej tsib lo lus nug nram qab no:
1. Kuv xav tau kev ua haujlwm li cas? Yog hais tias nws yog complex, ntau txheej yuav tsum tau.
2. Qhov siab tshaj plaws ntawm lub rooj tsavxwm yog dab tsi? Multilayer boards tuaj yeem ua haujlwm ntau dua hauv qhov chaw me me.
3. Puas yog qhov ua tau zoo dua qub? Yog tias muaj, siv ntau txheej.
4. Kuv pob nyiaj siv yog dab tsi? Rau kev siv nyiaj tsawg dua, ib txheej txheej boards ua haujlwm zoo tshaj plaws.
5. Kuv yuav xav tau PCB sai npaum li cas? Piv nrog ntau txheej luam tawm Circuit Board, ib txheej txheej luam tawm Circuit Court boards muaj sijhawm luv dua.