I-Copper yenye yezona zinyithi zisebenziseka lula ehlabathini. Iimpawu zayo ezikhethekileyo ziyenza ifaneleke kwiintlobo ngeentlobo zezicelo, kuquka ukuqhuba umbane. I-Copper isetyenziswa kakhulu kumashishini ombane kunye ne-elektroniki, kwaye ii-copper foil zizinto ezibalulekileyo ekwenzeni iibhodi zesekethe eziprintiweyo (ii-PCB). Phakathi kweentlobo ezahlukeneyo zee-copper foils ezisetyenziswa ekuveliseni ii-PCB, i-ED copper foil yeyona isetyenziswa kakhulu.
Ifoyile ye-ED copper iveliswa yi-electro-deposition (ED), inkqubo equka ukufakwa kweeathom ze-copper kumphezulu wesinyithi ngokusebenzisa umbane. Ifoyile ye-copper ephumayo icocekile kakhulu, iyafana, kwaye ineempawu ezintle zoomatshini nezombane.
Enye yezona nzuzo ziphambili ze-ED copper foil kukufana kwayo. Inkqubo yokufakwa kwe-electro iqinisekisa ukuba ubukhulu be-copper foil buhlala bufana kuyo yonke indawo yayo, nto leyo ibalulekileyo ekuvelisweni kwe-PCB. Ubukhulu be-copper foil buhlala buchazwa kwii-microns, kwaye bunokwahluka ukusuka kwii-microns ezimbalwa ukuya kwi-ten of microns, kuxhomekeke kwisicelo. Ubukhulu be-copper foil bumisela ukuhanjiswa kwayo kombane, kwaye i-foil etyebileyo idla ngokuba nokuhanjiswa okuphezulu.
Ukongeza ekufaneni kwayo, i-ED copper foil ineempawu ezintle kakhulu zoomatshini. Iguquguquka kakhulu kwaye inokugotywa, imile, kwaye yenziwe ngokulula ukuze ivumelane neekhontenti zePCB. Olu kuguquguquka lwenza ukuba ibe yinto efanelekileyo yokwenza iiPCB ezinejometri ezintsonkothileyo kunye noyilo oluntsonkothileyo. Ngaphezu koko, ukuguquguquka okuphezulu kwe-copper foil kuyivumela ukuba imelane nokugoba nokuguquguquka okuphindaphindiweyo ngaphandle kokuqhekeka okanye ukuqhekeka.
Enye into ebalulekileyo yefoyile yobhedu ye-ED kukukwazi kwayo ukudlulisa umbane. I-Copper yenye yezona metali ziqhuba umbane kakhulu, kwaye ifoyile yobhedu ye-ED inokuqhuba umbane okungaphezulu kwe-5×10^7 S/m. Eli nqanaba liphezulu lokukwazi ukudlulisa umbane libalulekile ekuvelisweni kwee-PCB, apho livumela ukudluliselwa kwemiqondiso yombane phakathi kwezinto. Ngaphezu koko, ukumelana nombane okuphantsi kwefoyile yobhedu kunciphisa ukulahleka kwamandla esignali, nto leyo ibalulekileyo kwizicelo zesantya esiphezulu kunye ne-frequency ephezulu.
Ifoyile ye-ED copper ikwamelana kakhulu ne-oxidation kunye nokugqwala. I-Copper isabela kunye ne-oxygen emoyeni ukuze yenze umaleko omncinci we-copper oxide kumphezulu wayo, nto leyo enokuphazamisa ukuhanjiswa kwayo kombane. Nangona kunjalo, ifoyile ye-ED copper idla ngokugqunywa ngomaleko wezinto ezikhuselayo, ezifana ne-tin okanye i-nickel, ukuthintela i-oxidation kunye nokuphucula ukunyibilika kwayo.
Ukuqukumbela, i-ED copper foil sisixhobo esisebenziseka lula nesibalulekileyo ekuvelisweni kwee-PCB. Ukufana kwayo, ukuguquguquka kwayo, ukuqhuba kwayo umbane okuphezulu, kunye nokumelana ne-oxidation kunye nokugqwala kwenza ukuba ibe yinto efanelekileyo yokwenza ii-PCB ezineejometri ezintsonkothileyo kunye neemfuno zokusebenza okuphezulu. Ngenxa yemfuno ekhulayo ye-elektroniki ekhawulezayo nephezulu, ukubaluleka kwe-ED copper foil kuza kwanda kwiminyaka ezayo.
Ixesha leposi: Februwari-17-2023