Ubhedu sesinye sezona ntsimbi zisebenza ngeendlela ezininzi ehlabathini.Iimpawu zayo ezikhethekileyo zenza ukuba zilungele uluhlu olubanzi lwezicelo, kubandakanywa ukuqhutyelwa kombane.I-Copper isetyenziswa kakhulu kumashishini ombane kunye ne-electronics, kwaye iifoyile zobhedu ziyinxalenye ebalulekileyo yokuvelisa iibhodi zesekethe eziprintiweyo (PCBs).Phakathi kweentlobo ezahlukeneyo zeefoyile zobhedu ezisetyenziselwa ukuveliswa kwe-PCBs, i-ED ye-copper foil iyona isetyenziswa kakhulu.
I-ED ye-copper foil iveliswa yi-electro-deposition (ED), eyinkqubo ebandakanya ukubekwa kwee-athomu zobhedu kumphezulu wesinyithi ngokusebenzisa umsinga wombane.Ifoyile yobhedu enesiphumo icocekile kakhulu, iyafana, kwaye ineempawu ezigqwesileyo ngoomatshini nezombane.
Enye yeenzuzo eziphambili ze-ED ye-copper foil kukufana kwayo.Inkqubo ye-electro-deposition iqinisekisa ukuba ubukhulu be-foil yobhedu buhambelana kuyo yonke indawo yayo, ebaluleke kakhulu kwimveliso ye-PCB.Ubukhulu befoyile yobhedu ngokuqhelekileyo bucaciswe kwii-microns, kwaye bunokuqala ukusuka kwii-microns ezimbalwa ukuya kumashumi amaninzi e-microns, kuxhomekeke kwisicelo.Ubunzima befoyile yobhedu bumisela ukuhanjiswa kombane, kwaye ifoyile etyebileyo ngokuqhelekileyo inokuqhuba okuphezulu.
Ukongeza kokufana kwayo, i-ED ye-copper foil ineempawu ezintle kakhulu zoomatshini.Ibhetyebhetye kakhulu kwaye inokugotywa ngokulula, ukubunjwa, kunye nokubunjwa ukuze ilingane iikhonto zePCB.Oku bhetyebhetye kuyenza ibe yimathiriyeli efanelekileyo yokwenza iiPCBs ezinejometri ezintsonkothileyo kunye noyilo oluntsonkothileyo.Ngaphezu koko, i-ductility ephezulu ye-foil yobhedu ivumela ukuba imelane nokugoba ngokuphindaphindiweyo kunye nokuguquguquka ngaphandle kokuqhekeka okanye ukuphuka.
Enye ipropati ebalulekileyo ye-ED ye-copper foil yi-conductivity yayo yombane.I-Copper yenye yezona zinyithi ezihamba phambili, kwaye i-ED ye-copper foil ine-conductivity engaphezu kwe-5 × 10 ^ 7 S / m.Eli nqanaba liphezulu le-conductivity liyimfuneko ekuveliseni ii-PCB, apho yenza ukuba ukuhanjiswa kwemiqondiso yombane phakathi kwamacandelo.Ngaphezu koko, ukunyanzeliswa kombane ophantsi we-foil yobhedu kunciphisa ukulahlekelwa kwamandla omqondiso, okubaluleke kakhulu kwizicelo ezikhawulezayo kunye ne-high-frequency applications.
Ifoyile yobhedu ye-ED nayo ixhathisa kakhulu kwi-oxidation kunye nokubola.Ubhedu lusabelana neoksijini emoyeni ukwenza umaleko obhityileyo we-copper oxide kumphezulu wayo, onokubeka esichengeni ukuhanjiswa kwawo kombane.Nangona kunjalo, i-ED ye-copper foil idla ngokugqunywa ngomaleko wezinto ezikhuselayo, ezifana ne-tin okanye i-nickel, ukukhusela i-oxidation kunye nokuphucula ukuthengiswa kwayo.
Ukuqukumbela, i-ED ye-copper foil yinto eguquguqukayo kwaye iyimfuneko ekuveliseni ii-PCBs.Ukufana kwayo, ukuguquguquka, ukuhanjiswa kombane okuphezulu, kunye nokuchasana ne-oxidation kunye nokuhlwa kuyenza ibe yinto efanelekileyo yokuvelisa ii-PCB ezinejometri ezintsonkothileyo kunye neemfuno zokusebenza okuphezulu.Ngemfuno ekhulayo ye-high-speed kunye ne-high-frequency electronics, ukubaluleka kwe-foil yobhedu ye-ED kumiselwe kuphela ukunyuka kwiminyaka ezayo.
Ixesha lokuposa: Feb-17-2023