Ubhedu yenye yezona zinyithi zezezinye emhlabeni. Iipropathi zayo ezizodwa zenza ilungele uluhlu olubanzi lwezicelo, kubandakanya ukwenzeka kombane. Ubhedu lusetyenziswa kakhulu kumashishini ombane kunye ne-elektroniki, kwaye iifayile zobhedu zizinto ezibalulekileyo kwiibhodi zesekethe eziprintiweyo (i-PCBs). Phakathi kweentlobo ezahlukeneyo zobhedu olusetyenziswa kwimveliso yee-PCBs, i-foil yobhedu ye-Edper yeyona isetyenziswa kakhulu.
I-FOLRER POPRER POPERR iveliswa yi-electro-premiplaysetion (ed), yinkqubo ebandakanya ukunikezelwa kweeathom ze-copper kumphezulu wensimbi ngombane. Iziphumo zobhedu ezikhokelela kakhulu, iyunifomu, kwaye ineepropathi ezigqwesileyo kunye neendlela zombane.
Enye yezona zinto zibalulekileyo zendlwana yobhedu i-ed iyunifomu yayo. Inkqubo yokutsalwa kwe-electro iqinisekisa ukuba ubukhulu be-foil yobhedu bungangqinelani kuwo wonke umphezulu wayo, obaluleke kakhulu kwimveliso ye-PCB. Ubungqingqwa be-foil yobhedu ichazwe ngokwemicrons, kwaye bunokuvela kwii-microns ezimbalwa ukuya kumashumi amashumi eemicrons, kuxhomekeke kwisicelo. Ubungqingqwa be-foil yobhedu ichaza ukuqhekeka kombane, kwaye ububi obukhulu buhlala buyindlela ephezulu.
Ukongeza kwiyunifomu yalo, i-edper yobhedu ineempawu ezintle zendlela. Iguquguquka kakhulu kwaye inokuqhelisela ngokulula, ibekwe, kwaye yenziwa ukuze ilingane i-PCB. Oku bhetyebhetye kwenza ukuba ibe yinto efanelekileyo yokwenza i-PCBS eneendlela ezinzima kunye noyilo oluntsonkothileyo. Ngaphezu koko, i-tycial ephezulu ye-foil ye-cailper ivumela ukuba ihlale igobe kwaye iguquke ngaphandle kokuqhekeza okanye ukophula.
Enye ipropathi ebalulekileyo yePropathi yobhedu Ubhedu yenye yezona zinyithi zisebenzayo, kwaye u-Edper Foil unempumelelo kwi-5 × 10 ^ I-7 s / m. Eli nqanaba liphezulu lokuphumelela libalulekile kwimveliso yee-PCBs, apho ivumela ukuhanjiswa kwemiqondiso yombane phakathi kwamacandelo. Ngapha koko, ukuxhathisa kombane ophantsi kwe-foil yobhedu kunciphisa ukulahleka kwamandla empawu, okubaluleke kakhulu kwizicelo eziphakamileyo kunye nezicelo eziphakamileyo.
I-foil yobhedu i-Edper ikwanyangeke kakhulu kukunyanzelwa kwe-oxidation kunye neyosu. Copper reacts with oxygen in the air to form a thin layer of copper oxide on its surface, which can compromise its electrical conductivity. Nangona kunjalo, i-idper yobhedu ihlokothi idityaniswe nomaleko wezinto ezikhuselayo, ezinjenge-tin okanye i-nin okanye i-nickel, ukuthintela i-oxidation kwaye iphucule impahla yayo ethengiswayo.
Ukuqukumbela, i-frepper call yindawo eguquguqukayo kunye nento ebalulekileyo kwimveliso yee-PCB. Ukufana kwayo, ukuguquguquka, ukuqhutywa kombane okuphezulu, kwaye ukuxhathisa kwi-oxidotion kunye ne-corosion kuyenza yinto efanelekileyo ye-PCBS ineemfuno ezinzima ze-jometri kunye neemfuno zomsebenzi eziphezulu. Ngemfuno ekhulayo yesantya esiphezulu kunye ne-frequency frequety ye-elektroniki, ukubaluleka kwendlu yobhedu i-Edper kuphela kusekwe kuphela ukukhula kwiminyaka ezayo.
IXESHA LOKUQALA: NgoFebruwari-17-2023