Ukufika kwe-5G yothungelwano lonxibelelwano lweselula kuye kwabangela ingxoxo malunga nokwakha iisekethe zedijithali ezikhawulezayo kwihlabathi liphela.Iinjineli zikhangela ezona ndlela zilungileyo zokuhambisa imiqondiso kunye nee-frequencies ngokusebenzisa izixhobo ezisemgangathweni ezikhoyo kwiibhodi zesekethe eziprintiweyo (PCBs).

Injongo yazo zonke izixhobo ze-PCB kukuhambisa umbane kunye nokubonelela nge-insulation phakathi kweeleya eziqhuba ubhedu.Eyona nto ixhaphakileyo kweli qela yiFR-4.Nangona kunjalo, iimfuno zebhodi yakho ngokuqinisekileyo ziya kuphenjelelwa ziimpawu zezinto ezahlukeneyo zePCB.Isikhokelo sokukhetha izinto eziphathekayo se-PCB ngezantsi, esidalwe ngu-ABIS, umenzi we-PCB oqeqeshiweyo ongaphezu kweminyaka eyi-15 yobuchwephesha, uya kukuxelela into omawuyijonge xa ​​kufikwa kwiintlobo ezahlukeneyo zezinto zePCB.

Uyilo oluqhelekileyo lwebhodi yesekethe lubandakanya i-non-conductive dielectric substrate core layers kunye ne-dielectric laminated layers.Iingqimba ze-laminate ziya kusebenza njengesiseko somkhondo wefoyile yobhedu kunye neeplani zamandla.Ezi maleko, ezisebenza njenge-insulation phakathi kwee-coppers conductive layers ngelixa zivumela ukuhamba kombane, zenziwe ngezinto ezahlukeneyo ezisekelwe kwiimpawu zazo.Iimethrikhi ezininzi zisetyenziselwa ukuhlalutya iimpawu ze-thermal kunye nezombane zemathiriyeli ukuze kuchongwe imathiriyeli efanelekileyo ye-substrate core layers kunye ne-laminate layers.Ngaphaya koko, imiba eyongezelelweyo efana neempawu zekhemikhali kunye neepropathi zoomatshini kufuneka zivavanywe ngokwesicelo somntu ngamnye, kuba iPCB inokusetyenziswa koomatshini kunye namalungu anokuthi abe sesichengeni sokufuma okanye abekwe kwiindawo ezixineneyo ezifuna iiPCB ezibhetyebhetye ngakumbi.

Umlinganiselo we-dielectric constant (Dk) isetyenziselwa ukumisela ukusebenza kombane we PCB enesantya esiphezulu impahla.Ukusebenza njenge-insulation yezalathi zobhedu kunye neenqwelomoya zamandla, ufuna imathiriyeli ene-Dk esezantsi amaxabiso kwi-PCB umaleko.Imathiriyeli ekhethiweyo kufuneka kwakhona igcine uDkt wayo ihambelana njengoko kunokwenzeka ngexesha lokuphila kwayo kwiintlobo ezahlukeneyo zamafrikhwensi.Izinto ezigqiba ukusebenza kombane wezinto zedielectric ezisetyenziswa kwiiPCBs kukunyaniseka komqondiso kunye nokuphazamiseka.

Ecaleni kwePCB, ubushushu buya kuveliswa njengoko buqhuba umbane.Izinto eziphathekayo ziya kuncipha kwimilinganiselo eyahlukeneyo ngenxa yoxinzelelo lwe-thermal olu bushushu luya kubeka imigca yokuhambisa, amacandelo, kunye nezixhobo ze-dielectric.Ukongeza, ubushushu bunokubangela ukuba ezinye izinto zande, nto leyo engalunganga kwiiPCBs kuba inokukhokelela ekungaphumeleli nasekuqhekekeni.

Xa uvavanya ukuxhathisa kweekhemikhali, uhlobo lokusingqongileyo ibhodi yesekethe iya kusetyenziswa kuyo ibalulekile.Izinto ozikhethayo kufuneka zibe nokuxhathisa okukhulu kweekhemikhali kunye nokufunxa okuncinci kokufuma.Ukongeza, iinjineli kufuneka zijonge imathiriyeli eneempawu zokubuyiswa komlilo, okuthetha ukuba aziyi kutsha ngaphezulu kwemizuzwana eyi-10 ukuya kwengama-50 ngexesha lokutsha kwedangatye.Iimaleko ze-PCB zinokuqala ukwahlula kumaqondo obushushu athile, ngoko ke kubalulekile ukukhomba xa oku kusenzeka.

Xa ukhetha izinto ezichanekileyo, utyala imali efanelekileyo, kwaye uhlole iziphene zokuvelisa, kunokwenzeka ukuba ube neminyaka emininzi yokusebenza okungenazinkathazo kwibhodi yakho yesekethe eprintiweyo.Iisekethe ze-ABIS zibonelela ngeebhodi zeesekethe ezikumgangatho ophezulu eziprintiweyo.I-PCB nganye esiyinikezelayo inexabiso elifanelekileyo kwaye yakhiwe ngobuchule.Ukuze ufunde ngakumbi ngeePCB zethu, nceda QHAGAMSHELANA NATHI .