Kubwera kwa ma PCB amitundu yambiri

M'mbuyomu, ma board osindikizira ozungulira anali odziwika kwambiri ndi mawonekedwe awo amodzi kapena awiri, zomwe zimalepheretsa kuyenera kwawo kugwiritsa ntchito ma frequency apamwamba chifukwa chakuwonongeka kwa ma siginecha komanso kusokoneza kwamagetsi (EMI). Komabe, kukhazikitsidwa kwa ma board osindikizira okhala ndi mitundu ingapo kwadzetsa kupita patsogolo kowoneka bwino kwa kukhulupirika kwa ma signal, kuchepetsa ma electromagnetic interference (EMI), komanso magwiridwe antchito onse.

Ma PCB amitundu ingapo (Chithunzi 1) amakhala ndi zigawo zingapo zomwe zimasiyanitsidwa ndi magawo oteteza. Kapangidwe kameneka kamathandizira kutumiza ma siginecha ndi ndege zamphamvu m'njira yaukadaulo.

Mipikisano wosanjikiza osindikizidwa matabwa (PCBs) amasiyanitsidwa ndi anzawo amodzi kapena awiri wosanjikiza ndi kukhalapo kwa magawo atatu kapena kupitilira apo omwe amasiyanitsidwa ndi insulating material, omwe amadziwika kuti dielectric layers. Kulumikizana kwa zigawozi kumayendetsedwa ndi vias, zomwe ndi njira zazing'ono zomwe zimathandizira kulumikizana pakati pa zigawo zosiyana. Mapangidwe ovuta a ma PCB amitundu yambiri amathandizira kuti pakhale kuchulukirachulukira kwa zigawo ndi mazungulira ozungulira, kuwapangitsa kukhala ofunikira paukadaulo wamakono.

Ma PCB a Multilayer nthawi zambiri amawonetsa kusasunthika kwakukulu chifukwa chazovuta zomwe zimachitika kuti akwaniritse zigawo zingapo mkati mwa mawonekedwe a PCB osinthika. Kulumikizana kwamagetsi pakati pa zigawo kumakhazikitsidwa pogwiritsa ntchito mitundu ingapo ya ma vias (chithunzi 2), kuphatikiza ma vias akhungu ndi okwiriridwa.

Kukonzekera kumaphatikizapo kuyika zigawo ziwiri pamwamba kuti zikhazikitse mgwirizano pakati pa bolodi losindikizidwa (PCB) ndi chilengedwe chakunja. Nthawi zambiri, kachulukidwe ka zigawo m'mabokosi osindikizidwa (PCBs) ndi ofanana. Izi zimachitika makamaka chifukwa cha kuchuluka kwa manambala osamvetseka kuzinthu monga warping.

Chiwerengero cha zigawo nthawi zambiri chimasiyana malinga ndi momwe zimagwiritsidwira ntchito, nthawi zambiri zimagwera mkati mwa magawo anayi mpaka khumi ndi awiri.
Nthawi zambiri, ntchito zambiri zimafunikira magawo anayi komanso osachepera asanu ndi atatu. Mosiyana ndi izi, mapulogalamu monga mafoni am'manja nthawi zambiri amagwiritsa ntchito zigawo khumi ndi ziwiri.

Ntchito zazikulu

Ma PCB amitundu yambiri amagwiritsidwa ntchito pamagetsi osiyanasiyana (Chithunzi 3), kuphatikiza:

●Consumer electronics, kumene ma PCB amitundu yambiri amagwira ntchito yofunika kwambiri popereka mphamvu zofunikira ndi zizindikiro za zinthu zosiyanasiyana monga mafoni a m'manja, mapiritsi, masewera a masewera, ndi zipangizo zovala. Zida zamagetsi zowoneka bwino komanso zosunthika zomwe timadalira tsiku lililonse zimayenderana ndi kapangidwe kake kakang'ono komanso kachulukidwe kazinthu zambiri.

● Pankhani ya matelefoni, kugwiritsa ntchito ma PCB amitundu ingapo kumathandizira kutumiza bwino kwamawu, deta, ndi ma siginecha amakanema pamanetiweki, potero zimatsimikizira kulumikizana kodalirika komanso kothandiza.

● Makina oyendetsera mafakitale amadalira kwambiri ma board osindikizira amitundu yambiri (PCBs) chifukwa cha kuthekera kwawo kuyendetsa bwino machitidwe owongolera, njira zowunikira, ndi njira zopangira makina. Makina owongolera makina, ma robotiki, ndi makina opanga mafakitale amadalira iwo ngati njira yawo yothandizira

●Ma PCB amitundu yambiri ndi ofunikiranso pazida zamankhwala, chifukwa ndi ofunikira kuti atsimikizire zolondola, zodalirika, komanso zolumikizana. Zida zowunikira, njira zowunikira odwala, ndi zida zamankhwala zopulumutsa moyo zimakhudzidwa kwambiri ndi ntchito yawo yofunika.

Ubwino ndi ubwino

Ma PCB amitundu ingapo amapereka maubwino ndi maubwino angapo pamapulogalamu apamwamba kwambiri, kuphatikiza:

● Kupititsa patsogolo kukhulupirika kwa chizindikiro: Ma PCB amitundu yambiri amathandizira kuwongolera njira zowongolera, kuchepetsa kusokoneza kwa ma siginecha ndikuwonetsetsa kutumizidwa kodalirika kwa ma siginoloji apamwamba kwambiri. Kusokonekera kwapamunsi kwa ma board osindikizira amitundu yambiri kumapangitsa kuti magwiridwe antchito aziyenda bwino, kuthamanga, komanso kudalirika.

● Kuchepetsa EMI: Pogwiritsa ntchito ndege zodzipatulira zapansi ndi mphamvu, ma PCB amitundu yambiri amapondereza EMI, motero amakulitsa kudalirika kwadongosolo ndikuchepetsa kusokoneza madera oyandikana nawo.

● Compact Design: Pokhala ndi mphamvu zokhala ndi zigawo zambiri ndi njira zovuta zoyendetsera njira, ma PCB amitundu yambiri amathandiza kupanga mapangidwe ang'onoang'ono, ofunikira kwambiri pa ntchito zopanda malo monga mafoni a m'manja ndi makina oyendetsa ndege.

● Kupititsa patsogolo Kutentha kwa Matenthedwe: Ma PCB amitundu yambiri amapereka kutentha kwabwino mwa kuphatikizika kwa ma vias otenthetsera ndi zigawo zamkuwa zomwe zimayikidwa mwaluso, kupititsa patsogolo kudalirika ndi moyo wa zida zamphamvu kwambiri.

● Kusinthasintha Kwapangidwe: Kusinthasintha kwa ma PCB amitundu yambiri kumapangitsa kuti kusinthasintha kwapangidwe kukhale kokulirapo, kupangitsa akatswiri opanga makina kuti azitha kuwongolera magawo ogwirira ntchito monga kufananiza kwa impedance, kuchedwa kufalikira kwa ma sign, ndi kugawa mphamvu.