Kodi magulu a ma board a PCB (ma board ozungulira) ndi ati?

Kodi bolodi yokhala ndi mbali ziwiri yamitundu yambiri ndi chiyani?
Ma board a PCB amagawidwa malinga ndi kuchuluka kwa zigawo: mbali imodzi, mbali ziwiri komanso matabwa amitundu yambiri.Ma board ambiri osanjikiza nthawi zambiri amakhala 4-wosanjikiza matabwa kapena 6-wosanjikiza matabwa, ndi zovuta zosanjikiza matabwa akhoza kufika oposa khumi zigawo.Ili ndi mitundu itatu yayikulu yogawa:
Gulu limodzi: Pa PCB yofunikira kwambiri, zigawozo zimakhazikika mbali imodzi, ndipo mawaya amakhazikika mbali inayo.Chifukwa mawaya amangowonekera mbali imodzi, PCB yamtunduwu imatchedwa mbali imodzi (mbali imodzi).Chifukwa bolodi lokhala ndi mbali imodzi lili ndi zoletsa zambiri pakupanga dera (chifukwa pali mbali imodzi yokha, mawaya sangathe kuwoloka ndipo ayenera kukhala njira yosiyana), kotero mabwalo oyambirira okha amagwiritsa ntchito bolodi lamtunduwu.
Bolodi lam'mbali ziwiri: Gulu lozungulira lamtundu uwu lili ndi mawaya mbali zonse ziwiri, koma kuti mugwiritse ntchito mawaya ambali ziwiri, payenera kukhala kulumikizana koyenera pakati pa mbali ziwirizo."Milatho" pakati pa madera oterewa amatchedwa vias.A kudzera ndi dzenje laling'ono wodzazidwa kapena wokutidwa ndi zitsulo pa PCB, amene akhoza olumikizidwa kwa mawaya mbali zonse.Chifukwa gawo la bolodi lokhala ndi mbali ziwiri ndilokulirapo kawiri kuposa la bolodi lokhala ndi mbali imodzi, komanso chifukwa mawaya amatha kulumikizidwa (amatha kuvulala mbali inayo), ndi oyenera kugwiritsidwa ntchito m'mabwalo. zomwe ndizovuta kwambiri kuposa bolodi lambali imodzi.
Multilayer board: Pofuna kuonjezera dera lomwe lingathe kulumikizidwa ndi mawaya, bolodi la multilayer limagwiritsa ntchito matabwa amtundu umodzi kapena awiri.Gwiritsani ntchito mbali ziwiri ngati gawo lamkati, awiri amtundu umodzi ngati mawonekedwe akunja kapena awiri-mbali ziwiri ngati mkatikati mwa mkati ndi awiri amtundu umodzi ngati gawo lakunja la bolodi losindikizidwa.The malo dongosolo ndi insulating zomangira zakuthupi alternately pamodzi ndi conductive chitsanzo Mapepala oyendera dera Osindikizidwa kuti olumikizidwa mogwirizana ndi zofunika kamangidwe kukhala anayi wosanjikiza kapena asanu wosanjikiza kusindikizidwa matabwa dera, amatchedwanso multilayer kusindikizidwa dera matabwa.Kuchuluka kwa zigawo za bolodi kumatanthauza kuti pali zigawo zingapo zodziyimira pawokha.Kawirikawiri chiwerengero cha zigawo zimakhala zofanana ndipo zimakhala ndi zigawo ziwiri zakunja.Mavabodi ambiri amakhala ndi magawo 4 mpaka 8, koma mwaukadaulo, matabwa a PCB okhala ndi zigawo pafupifupi 100 atha kupezedwa mwamalingaliro.Makompyuta akuluakulu ambiri amagwiritsa ntchito ma boardards osanjikiza ambiri, koma chifukwa makompyuta amtunduwu amatha kusinthidwa kale ndi gulu la makompyuta wamba, ma board a super-multilayer sagwiritsidwa ntchito pang'onopang'ono.
Chifukwa zigawo za PCB zimaphatikizidwa mwamphamvu, nthawi zambiri sizosavuta kuwona nambala yeniyeni, koma ngati muyang'anitsitsa pa bolodilo, mutha kuionabe.
Malinga ndi gulu zofewa ndi zovuta: anawagawa matabwa wamba dera ndi kusintha matabwa madera.Zopangira za PCB ndi laminate yamkuwa, yomwe ndi gawo lapansi lopangira matabwa osindikizidwa.Amagwiritsidwa ntchito pothandizira zigawo zosiyanasiyana, ndipo amatha kukwaniritsa kugwirizana kwa magetsi kapena kutsekemera kwamagetsi pakati pawo.Mwachidule, PCB ndi bolodi yopyapyala yokhala ndi mabwalo ophatikizika ndi zida zina zamagetsi.Idzawonekera pafupifupi pazida zilizonse zamagetsi.