Ukufika kwamanethiwekhi okuxhumana amaselula e-5G kuqubule ingxoxo ngokwakha amasekhethi edijithali asheshayo emhlabeni wonke.Onjiniyela bafuna izindlela ezingcono kakhulu zokudlulisa amasiginali namafrikhwensi ngezinto ezisetshenziswayo njengamanje zamabhodi esekethe aphrintiwe (ama-PCB).

Inhloso yazo zonke izinto ze-PCB ukudlulisa ugesi nokuhlinzeka ngokufakwa phakathi kwezendlalelo zokuqhuba ithusi.Izinto ezivame kakhulu kuleli qembu yi-FR-4.Nokho, izidingo zebhodi lakho zizothonywa izici ezihlukahlukene ze-PCB.Umhlahlandlela wokukhetha impahla ye-PCB ngezansi, edalwe i-ABIS, umkhiqizi we-PCB ochwepheshile onolwazi olungaphezu kweminyaka eyi-15, uzokutshela ukuthi yini okufanele uyibheke uma kuziwa ezinhlotsheni zezinto ezibonakalayo ze-PCB.

Idizayini evamile yebhodi lesifunda ihlanganisa izendlalelo ze-non-conductive dielectric substrate core kanye nezendlalelo ze-dielectric laminated.Izendlalelo ze-laminate zizosebenza njengesisekelo semikhondo ye-foil yethusi kanye nezindiza zamandla.Lezi zingqimba, ezisebenza njenge-insulation phakathi kwezingqimba ze-copper ngenkathi zivumela ukuhamba kukagesi, zenziwa ngezinto ezihlukahlukene ngokusekelwe ezintweni zazo.Kusetshenziswa amamethrikhi amaningana ukuze kuhlaziywe izici ezishisayo nezikagesi zezinto zokwakha ukuze kutholakale izinto ezifanele zezendlalelo eziyinhloko ze-substrate kanye nezendlalelo ze-laminate.Ngaphezu kwalokho, izici ezengeziwe ezifana nezimfanelo zamakhemikhali kanye nezakhiwo zemishini kufanele zihlolwe ngokuvumelana nesicelo ngasinye, njengoba i-PCB ingase isetshenziswe emishinini nasezintweni ezingase zibe sobala kumswakama omningi noma zibekwe ezindaweni eziqinile ezidinga ama-PCB avumelana nezimo.

Isilinganiso se-dielectric constant (Dk) sisetshenziselwa ukunquma ukusebenza kukagesi kwe- PCB enesivinini esikhulu impahla.Ukuze usebenze njengokugxilisa ukulandelela ithusi nezindiza zamandla, ufuna into enamanani aphansi ka-Dk wezendlalelo ze-PCB.Into ekhethiwe kufanele futhi igcine u-D wayo ulingana ngangokunokwenzeka phakathi nesikhathi sokuphila kwakho konke kumabanga ahlukahlukene efrikhwensi.Izakhi ezinquma ukusebenza kukagesi wezinto ze-dielectric ezisetshenziswa kuma-PCB ubuqotho besignali kanye nokuvinjelwa.

Eceleni kwe-PCB, ukushisa kuzokhiqizwa njengoba kuqhuba ugesi.Izinto ezisetshenziswayo zizokwehliswa ngamanani ahlukahlukene ngenxa yokucindezeleka okushisayo lokhu kushisa okuzofaka izintambo zokudlulisela, izingxenye, nezinto ze-dielectric.Ukwengeza, ukushisa kungabangela ukuthi ezinye izinto zikhule, okungalungile kuma-PCB njengoba kungaholela ekwehlulekeni nasekuqhekekeni.

Lapho kuhlolwa ukumelana kwamakhemikhali, uhlobo lwendawo ibhodi lesekethe elizosetshenziswa kuyo lubalulekile.Impahla oyikhethayo kufanele ibe nokumelana namakhemikhali amakhulu kanye nokumunca umswakama omncane.Ukwengeza, onjiniyela kufanele babheke izinto ezikwazi ukunqanda amalangabi, okusho ukuthi ngeke zishise isikhathi esingaphezu kwemizuzwana eyi-10 kuya kwengama-50 ngesikhathi sokusha ilangabi.Izendlalelo ze-PCB nazo zingaqala ukuhlukana kumazinga okushisa athile, ngakho-ke kubalulekile ukukhomba lapho lokhu kwenzeka.

Uma ukhetha izinto ezifanele, utshala imali efanelekile, futhi uhlola amaphutha okukhiqiza, maningi amathuba okuba ube neminyaka eminingi yokusebenza okungenazinkinga ebhodini lakho lesifunda eliphrintiwe.I-ABIS Circuits inikeza amabhodi esekethe aphrintiwe ekhwalithi ephezulu.I-PCB ngayinye esiyinikezayo inenani elifanele futhi yakhiwe ngokucophelela.Ukuze ufunde kabanzi mayelana nama-PCB ethu, sicela XHUMANA NATHI .