PCB keleawe

A Copper PCB, a i ʻole Copper-Based Printed Circuit Board, ʻo ia ka ʻano maʻamau o ka papa kaapuni paʻi i hoʻohana ʻia i ka uila. ʻO ka huaʻōlelo "Copper PCB" e pili ana i kahi PCB e hoʻohana ana i ke keleawe ma ke ʻano he mea conductive mua no kāna circuitry. Hoʻohana nui ʻia ke keleawe ma muli o kāna conductivity uila maikaʻi loa, ductility, a me ke kumu kūʻai haʻahaʻa.

I loko o ka Copper PCB, ua laminated nā ʻāpana lahilahi o ke keleawe ma kekahi ʻaoʻao a i ʻole nā ​​ʻaoʻao ʻelua o kahi substrate non-conductive, maʻamau i hana ʻia me nā mea like FR-4 (kahi aniani-fiber reinforced epoxy laminate), CEM-1 (he pepa a me ka epoxy resin material), a i ʻole polytetrafluoroethylene (PTFE, ʻike mau ʻia ʻo Teflon). Hoʻohālike ʻia nā ʻāpana keleawe me ka hoʻohana ʻana i ka photolithography a me nā kaʻina hana etching e hana i nā ala kaapuni i makemake ʻia, e hoʻopili ana i nā ʻāpana uila like ʻole e like me nā resistors, capacitors, a me nā kaapuni hoʻohui.