Ndi kukonza ukadaulo wa PCB ndikuwonjezereka kwa ogula ogulitsa mwachangu komanso zamphamvu kwambiri, PCB yasintha kuchokera ku bolodi yosanjikiza ziwiri kupita ku zigawo zinayi, zisanu ndi zitatu mpaka makumi khumi ndi atatu a sekondale ndi omwe akuchititsa. . Chifukwa chiyani onjezerani zigawo zingapo? Kukhala ndi zigawo zambiri kungakulitse magawikidwe a madera, kuchepetsa crostalky, kuthetsa zigawo zamagetsi ndikuthandizira ma signal othamanga kwambiri. Chiwerengero cha zigawo zomwe zimagwiritsidwa ntchito pa PCB zimatengera kugwiritsa ntchito, kugwiritsa ntchito pafupipafupi, pini kaphiri, komanso chizindikiro chosanjikiza.

Poyimitsa zigawo ziwiri, wosanjikiza wapamwamba (mwachitsanzo, wosanjikiza 1) amagwiritsidwa ntchito ngati siginecha. Ma stack anayi-osamba amagwiritsa ntchito zigawo zapamwamba kwambiri komanso pansi (kapena zigawo za 1 komanso 4) monga chizindikiro. Munthawi imeneyi, zigawo za 2 ndi 3 zimagwiritsidwa ntchito ngati ndege. The Pregreg yosanjikiza zomangira ziwiri kapena zochulukirapo ziwiri komanso zimagwira ntchito ngati dinect pakati pa zigawo. PCB-isanu ndi umodzi imawonjezera zigawo ziwiri zamkuwa, ndipo zigawo zachiwiri ndi zisanu zimakhala ngati ndege. Zigawo 1, 3, 4, ndi 6 Beants.

Pitilizani ku kapangidwe kasanu ndi umodzi, yosanjikiza mkati mwa atatu, atatu (pomwe ndi bolodi ya mbali ziwiri) ndi kachulukidwe ka kanayi (pomwe makeke (ma pp) amasungidwa pakati pa matabwa. Popeza malo okonzeka sanachiritsidwe kwathunthu, zinthu zake ndizosavuta kuposa zinthu zolumikizana. Njira yopanga PCB imagwiritsa ntchito kutentha ndi kukakamizidwa ku stack yonse ndikusungunula pokonzekera ndikuti zigawo zitha kukhala zolumikizidwa.

Ma boards a Alceal amawonjezeranso mkuwa komanso ma sekondale ku stack. Mu ma pcb asanu ndi atatu a pcb, mizere isanu ndi iwiri yamkati ya dielective zigawo zinayi za mitengo ya masamba anayi ndi zigawo zinayi. Khumi khumi ndi ziwiri-khumi ndi ziwiri zimakweza chiwerengero cha ma sekondale, kusunga zida zinayi, ndikuwonjezera zigawo zizindikiro.