Ithusi ingenye yezinsimbi eziguquguqukayo kakhulu emhlabeni. Izakhiwo zayo eziyingqayizivele ziyenza ifaneleke kakhulu ezinhlotsheni eziningi zezicelo, okuhlanganisa nokuqhuba ugesi. Ithusi lisetshenziswa kakhulu ezimbonini zikagesi neze-elekthronikhi, kanti ama-foil ethusi ayizingxenye ezibalulekile ekukhiqizeni amabhodi wesekethe aphrintiwe (ama-PCB). Phakathi kwezinhlobo ezahlukene zama-foil ethusi asetshenziswa ekukhiqizeni ama-PCB, i-foil yethusi ye-ED iyona esetshenziswa kakhulu.
I-foil yethusi ye-ED ikhiqizwa yi-electro-deposition (ED), okuyinqubo ehilela ukufakwa kwama-athomu ethusi phezu kwendawo yensimbi ngokusebenzisa ugesi. I-foil yethusi ephumayo ihlanzekile kakhulu, iyafana, futhi inezakhiwo ezinhle kakhulu zemishini kanye nogesi.
Enye yezinzuzo eziyinhloko ze-foil yethusi ye-ED ukufana kwayo. Inqubo yokufakwa kwe-electro iqinisekisa ukuthi ukujiya kwefoil yethusi kuyahambisana kuyo yonke indawo yayo, okuyinto ebalulekile ekukhiqizweni kwe-PCB. Ukujiya kwefoil yethusi kuvame ukucaciswa ngama-micron, futhi kungasukela kuma-micron ambalwa kuya kwamashumi amaningana ama-micron, kuye ngokusetshenziswa. Ukujiya kwefoil yethusi kunquma ukuqhutshwa kwayo kagesi, kanti ifoil ejiyile ngokuvamile inokuqhuba okuphezulu.
Ngaphezu kokufana kwayo, i-foil yethusi ye-ED inezakhiwo ezinhle kakhulu zemishini. Iguquguquka kakhulu futhi ingagobeka kalula, ibunjwe, futhi yakheke ukuze ivumelane nemingcele ye-PCB. Lokhu kuguquguquka kwenza kube yinto efanelekile yokukhiqiza ama-PCB ane-geometri eyinkimbinkimbi kanye nemiklamo eyinkimbinkimbi. Ngaphezu kwalokho, ukuguquguquka okuphezulu kwe-foil yethusi kuyivumela ukuthi imelane nokugoba nokuguquguquka okuphindaphindiwe ngaphandle kokuqhekeka noma ukuphuka.
Esinye isici esibalulekile se-foil yethusi ye-ED ukuqhutshwa kwayo kagesi. I-Copper ingenye yezinsimbi eziqhuba kakhulu, kanti i-foil yethusi ye-ED inokuqhuba okungaphezu kuka-5×10^7 S/m. Leli zinga eliphezulu lokuqhutshwa libalulekile ekukhiqizweni kwama-PCB, lapho lenza khona ukuthi kudluliselwe izimpawu zikagesi phakathi kwezingxenye. Ngaphezu kwalokho, ukumelana okuphansi kukagesi kwe-foil yethusi kunciphisa ukulahleka kwamandla esignali, okubaluleke kakhulu ekusetshenzisweni kwesivinini esikhulu kanye nemvamisa ephezulu.
I-foil yethusi ye-ED nayo imelana kakhulu ne-oxidation kanye nokugqwala. I-Copper isabela nomoya-mpilo emoyeni ukuze yakhe ungqimba oluncane lwe-copper oxide ebusweni bayo, okungalimaza ukuhanjiswa kwayo kukagesi. Kodwa-ke, i-ED copper foil ivame ukumbozwa ungqimba lwezinto ezivikelayo, njenge-tin noma i-nickel, ukuvimbela i-oxidation nokuthuthukisa ukushintshwa kwayo.
Ekuphetheni, i-ED copper foil iyinto eguquguqukayo futhi ebalulekile ekukhiqizweni kwama-PCB. Ukufana kwayo, ukuguquguquka kwayo, ukuhanjiswa kukagesi okuphezulu, kanye nokumelana nokugqwala nokubola kwenza kube yinto efanelekile yokukhiqiza ama-PCB ane-geometries eyinkimbinkimbi kanye nezidingo zokusebenza okuphezulu. Njengoba isidingo esikhulayo sama-electronics asheshayo futhi avame kakhulu, ukubaluleka kwe-ED copper foil kuzokhula eminyakeni ezayo.
Isikhathi sokuthunyelwe: Feb-17-2023