Kusindikizidwa bolodi dera (PCBS) ndi mapepala opangidwa ndi fiberglass, ma resin a epoxy opangira kapena zinthu zina zopaka utoto. PCBS imatha kupezeka m’magulu osiyanasiyana amagetsi ndi zamagetsi (mwachitsanzo, ma buzzers, mawailesi, ma radars, makompyuta, ndi zina zambiri). Mitundu yosiyanasiyana ya PCBS itha kugwiritsidwa ntchito kutengera momwe mukugwiritsira ntchito. Kodi mitundu yosiyanasiyana ya PCBS ndi iti? Pemphani kuti mupeze.

Kodi mitundu yosiyanasiyana ya PCBS ndi iti?

PCBS nthawi zambiri imagawidwa pafupipafupi, kuchuluka kwa zigawo zomwe zimagwiritsidwa ntchito, ndi gawo lapansi. Mitundu ina yotchuka ikufotokozedwa pansipa.

L PCB yokhazikika

PCB yokhayo ndi mtundu woyang’anira bolodi, wokhala ndi gawo limodzi lokha la gawo lapansi kapena zinthu zoyambira. Mzerewo umakutidwa ndi chitsulo chopyapyala, mkuwa, chomwe chimayendetsa bwino magetsi. Ma PCBS amenewa amakhalanso ndi zotchinga zotchinjiriza zomwe zimagwiritsidwa ntchito pamwamba pazitsulo zamkuwa molumikizana ndi zokutira za silkscreen. Zina mwamaubwino omwe ma PCBS amtundu umodzi amapereka ndi awa:

PCB yokhayo imagwiritsidwa ntchito popanga zinthu zambiri komanso zotsika mtengo.

Ma PCBS awa amagwiritsidwa ntchito m’mabwalo osavuta monga masensa amagetsi, kulandirana, masensa ndi zoseweretsa zamagetsi.

L PCB yokhala ndi mbali ziwiri

Mbali zonse za PCB amaganiza awiri ndi zigawo zitsulo conductive. Mabowo oyendetsa dera amalola kuti zitsulo zizilumikizidwa kuchokera mbali imodzi kupita mbali inayo. Ma PCBS awa amalumikizidwa ndi dera mbali zonse mwina kudzera mumayenje kapena ukadaulo wapamwamba. Njira yolowera mu dzenje imaphatikizapo kudutsa msonkhano wotsogola kudzera mu dzenje lomwe lidakonzedweratu m bolodi kenako ndikuwotchera padu mbali inayo. Kuyika pamwamba kumaphatikizapo kuyika zida zamagetsi molunjika pamwamba pa bolodi. Ma PCBS okhala mbali ziwiri amapereka izi:

Kuyika pamwamba kumalola ma circuits ambiri kuti azilumikizidwa ndi bolodi kuposa kupitirira poyika mabowo.

Ma PCBS awa amagwiritsidwa ntchito kwambiri pama foni am’manja, kuwunika mphamvu, zida zoyesera, zokuzira mawu ndi zina zambiri.

L Mipikisano PCB

A PCB multilayer ndi bolodi losindikizidwa lomwe lili ndi zigawo zopitilira ziwiri zamkuwa, monga 4L, 6L, 8L, ndi zina zambiri. PCBS izi zimakulitsa ukadaulo womwe umagwiritsidwa ntchito ma PCBS okhala mbali ziwiri. Magawo a gawo lapansi ndi kutchinjiriza amasiyanitsa magawo a PCB yamagulu angapo. PCBS ndi yaying’ono kukula ndipo imapereka kulemera ndi danga mwayi. Zina mwa zabwino zomwe ma PCBS angapo amapereka ndi:

Mipikisano yosanjikiza PCBS imapereka kuchuluka kwakukulu kwamapangidwe osinthika.

PCBS izi zimagwira gawo lofunikira pama circuits othamanga kwambiri. Amapereka malo ochulukirapo amachitidwe azoyendetsa ndi magetsi.

L okhwima PCB

Ma PCBS Olimba ndi omwe amapangidwa ndi zinthu zolimba ndipo sangathe kupindika. Zina mwazabwino zomwe amapereka:

Ma PCBS awa ndi ophatikizika, kuwonetsetsa kuti ma circuits ovuta osiyanasiyana amapangidwa mozungulira iwo.

Ma PCBS Olimba ndiosavuta kukonza ndikusamalira chifukwa zinthu zonse ndizodziwika bwino. Kuphatikiza apo, mayendedwe azizindikiro adakonzedwa bwino.

L PCB yosinthika

Kusintha kwa PCB kumangidwa pazida zosinthasintha. Ma PCBS awa amapezeka m’mitundu iwiri, mbali ziwiri komanso mawonekedwe angapo. Izi zimathandiza kuchepetsa zovuta mkati mwa zida zamagetsi. Zina mwazabwino zomwe PCBS zimapereka ndi izi:

Ma PCBS awa amathandizira kupulumutsa malo ambiri ndikuchepetsa kulemera konse kwa bolodi.

Ma Flexible PCBS amathandizira kuchepetsa kukula kwa bolodi ndipo chifukwa chake ndi abwino pamachitidwe osiyanasiyana omwe amafunikira kuchuluka kwa mayendedwe.

PCBS izi zimapangidwa kuti zizigwiritsa ntchito momwe kutentha ndi kusalimba kumaganiziridwa.

L Okhwima – osinthika -PCB

Okhwima osinthika – A PCB ndimapulogalamu oyenda osasunthika komanso osinthika. Amakhala ndi zigawo zingapo zamasamba osunthika olumikizidwa ndi mbale zingapo zolimba.

Izi PCBS zimamangidwa ndendende. Zotsatira zake, zimagwiritsidwa ntchito munjira zosiyanasiyana zamankhwala ndi zankhondo.

Ma PCBS ndi opepuka, opulumutsa mpaka 60% ya kulemera ndi malo.

L mkulu-pafupipafupi PCB

Hf PCBS imagwiritsidwa ntchito pafupipafupi 500MHz mpaka 2GHz. Izi PCBS zitha kugwiritsidwa ntchito pamafupipafupi ofunsira, monga njira zoyankhulirana, ma microwave PCBS, microstrip PCBS, ndi zina zambiri.

L Aluminiyamu kumbuyo kwa PCB

Mbale izi zimagwiritsidwa ntchito popanga mphamvu zamagetsi chifukwa kapangidwe ka aluminiyamu kamathandizira kutulutsa kutentha. Aluminiyamu omwe amathandizidwa ndi PCBS amadziwika kuti ali ndi milingo yolimba komanso yotsika kwambiri yamafuta, kuwapangitsa kukhala abwino kugwiritsira ntchito ndi kulolerana kwamakina. PCB imagwiritsidwa ntchito popanga magetsi ndi magetsi.

Kufunsira kwa PCBS kukuyambanso kudutsa mafakitale. Lero, mupeza opanga odziwika ndi omwe amagawa ma PCB osiyanasiyana omwe angakwaniritse zosowa za msika wolumikizana wazida. Nthawi zonse amalimbikitsidwa kugula ma PCBS kuti agwiritse ntchito mafakitale ndi malonda kuchokera kwa opanga odziwika ndi ogulitsa.