Kweli nqaku, siza kuphonononga umahluko phakathi kweFR4 kunye neePCB eziguquguqukayo, sicacisa usetyenziso kunye nezinto eziluncedo.
Xa kuziwa kwiibhodi zesekethe eziprintiweyo (PCBs), kukho iindlela ezahlukeneyo zokukhetha, nganye ineempawu zayo ezizodwa kunye nokusetyenziswa.Iintlobo ezimbini ezisetyenziswa ngokuqhelekileyo ziyi-FR4 kunye ne-PCB eguquguqukayo.Ukuqonda iiyantlukwano zabo kubalulekile ekwenzeni izigqibo ezizizo xa kuyilwa naxa kusenziwa izixhobo zombane.
Okokuqala, makhe sixoxe nge-FR4, emele i-Flame Retardant 4. I-FR4 yinto esetyenziswa ngokubanzi kwimveliso yeePCB eziqinileyo.Yilaminate ye-epoxy resin eyomelezwe ngelaphu le-fiberglass ukunika amandla omatshini kwibhodi yesekethe.Umdibaniso obangelwayo yiPCB eyomeleleyo, ehlala ihleli kwaye efikelelekayo ilungele uluhlu olubanzi lwezicelo.
Enye yeenzuzo eziphambili zeFR4 PCB kukuqhuba kwayo okuphezulu kwe-thermal.Le propati ibaluleke kakhulu kwiisekethe ze-elektroniki apho ukutshatyalaliswa kobushushu kubalulekile.Izinto ze-FR4 zigqithisa ngokufanelekileyo ubushushu kude namacandelo, ukuthintela ukufudumala kunye nokuqinisekisa ukusebenza kakuhle kwezixhobo.
Ukongeza, ii-PCB zeFR4 zibonelela ngeempawu ezibalaseleyo zokugquma umbane.Ukuqiniswa kwe-Fiberglass kunika i-insulation phakathi kwee-conductive layers, ukukhusela nayiphi na ukuphazamiseka kombane okungafunekiyo okanye iisekethe ezimfutshane.Olu phawu lubalulekile, ngakumbi kwiisekethe ezintsonkothileyo ezinamaleya amaninzi kunye namalungu.
Kwelinye icala, ii-PCBs eziguquguqukayo, ezaziwa ngokuba ziibhodi zesekethe eziguquguqukayo eziprintwayo okanye i-electronics flexible, ziyilelwe ukuba zibe bhetyebhetye kwaye zigobe.I-substrate esetyenziswa kwi-PCB eguquguqukayo idla ngokuba yifilimu ye-polyimide, enokuguquguquka okugqwesileyo kunye nokumelana nobushushu obuphezulu.Xa kuthelekiswa nee-FR4 PCBs, ii-PCB eziguquguqukayo zinokugotshwa, ukujijwa okanye ukugotywa, zizenze zilungele usetyenziso olufuna iimilo ezintsonkothileyo okanye uyilo olubambeneyo.
IiPCB eziguquguqukayo zibonelela ngeenzuzo ezininzi ngaphezulu kweePCB eziqinileyo.Okokuqala, ukuguquguquka kwabo kuvumela ukudibanisa lula kwizixhobo ezinendawo encinci.Iimilo zabo zinokuhlengahlengiswa kwiindlela ezingaqhelekanga, ezivumela inkululeko enkulu yoyilo.Oku kwenza ukuba ii-PCB eziguquguqukayo zilungele usetyenziso olunje ngee-smartphones, itekhnoloji enxitywayo, izixhobo zonyango kunye ne-automotive electronics.
Ukongezelela, iibhodi zeesekethe eziprintiweyo eziguquguqukayo zinenzuzo yokunciphisa ukudibanisa kunye nokudibanisa ukudibanisa.IiPCB zemveli eziqinileyo zihlala zifuna iziqhagamshelo ezongezelelweyo kunye neentambo zokuqhagamshela amacandelo ahlukeneyo.IiPCB eziguquguqukayo, ngakolunye uhlangothi, zivumela uxhulumaniso oluyimfuneko ukuba ludityaniswe ngokuthe ngqo kwibhodi yesiphaluka, ukuphelisa imfuno yamacandelo ongezelelweyo kunye nokunciphisa iindleko zendibano jikelele.
Enye inzuzo enkulu yeePCB eziguquguqukayo kukuthembeka kwazo.Ukungabikho kwezixhumi kunye neentambo kuphelisa iingongoma ezinokuthi zingaphumeleli kwaye kwandisa ukuqina okupheleleyo kwesekethe.Ukongeza, ii-PCB eziguquguqukayo zinokuxhathisa okubalaseleyo kwi-vibration, ukothuka kunye noxinzelelo lomatshini, nto leyo ezenza zilungele usetyenziso oluhamba rhoqo okanye iimeko ezingqongileyo ezinzima.
Ngaphandle kokungafani kwazo, i-FR4 kunye nee-PCB eziguquguqukayo zinokufana okuthile.Zombini zinokwenziwa kusetyenziswa iinkqubo ezifanayo zokuvelisa, kubandakanywa i-etching, i-drilling kunye ne-welding.Ukongeza, zombini iindidi zeePCB zinokulungiswa ukuze zihlangabezane neemfuno zoyilo oluthile, kubandakanya nenani leeleya, ubungakanani, kunye nokubekwa kwecandelo.
Isishwankathelo, umahluko omkhulu phakathi kwe-FR4 kunye nee-PCB eziguquguqukayo kukuqina kwazo kunye nokuguquguquka.I-FR4 PCB yomelele kakhulu kwaye ineempawu ezibalaseleyo zobushushu kunye nombane, iyenza ilungele uluhlu olubanzi lwezicelo.IiPCB eziguquguqukayo, kwelinye icala, zibonelela ngokuguquguquka okungenakuthelekiswa nanto, ukuvumela ukuyila okuntsonkothileyo kunye nokudibanisa kwizixhobo ezixineneyo kwindawo.
Ekugqibeleni, ukhetho phakathi kwe-FR4 kunye ne-PCB eguquguqukayo ixhomekeke kwiimfuno ezithile zeprojekthi.Imiba efana nesicelo esicetywayo, imiqobo yendawo kunye neemfuno zokuguquguquka kufuneka zonke ziqwalaselwe ngononophelo.Ngokuqonda iiyantlukwano kunye neenzuzo zohlobo ngalunye, abaqulunqi kunye nabavelisi banokwenza izigqibo ezinolwazi zokuphucula ukusebenza kunye nokuthembeka kwezixhobo zabo zombane.
Ixesha lokuposa: Oct-11-2023
Emva
