Iluncedo
Ekupheleni kwee-1990s xa abaninzi besakhaibhodi yesekethe eprintiweyoizisombululo zacetywa, iibhodi zesekethe eziprintiweyo ezakhayo nazo zafakwa ngokusemthethweni ukuba zisetyenziswe ngobuninzi ukuza kuthi ga ngoku.Kubalulekile ukuphuhlisa isicwangciso esiqinileyo sokuvavanya kwiindibano zebhodi yesekethe eprintiweyo enkulu, eprintiweyo (i-PCBA, indibano yebhodi yesekethe eprintiweyo) ukuqinisekisa ukuthotyelwa kunye nokusebenza ngokuyila.Ukongeza ekwakhiweni nasekuvavanyeni ezi ndibano zinzima, imali etyalwe kwi-electronics iyodwa inokuba phezulu, mhlawumbi ifikelele kwi-25,000 yeedola kwiyunithi xa ivavanywa ekugqibeleni.Ngenxa yeendleko eziphezulu ngolo hlobo, ukufumana nokulungisa iingxaki zendibano kulinyathelo elibaluleke ngakumbi ngoku kunokuba kwakunjalo ngaphambili.Iindibano zanamhlanje ezintsonkothileyo zimalunga ne-intshi ezili-18 zesikwere kunye nemigangatho eyi-18;ibe namalungu angaphezu kwama-2,900 emacaleni aphezulu nasezantsi;ziqulathe 6,000 iisekethe nodes;kwaye babe ngaphezu 20,000 amanqaku solder ukuvavanya.
iprojekthi entsha
Uphuhliso olutsha lufuna ukuntsonkotha ngakumbi, iiPCBA ezinkulu kunye nokupakishwa okuqinileyo.Ezi mfuno zicela umngeni kwisakhono sethu sokwakha nokuvavanya ezi yunithi.Ukuqhubela phambili, iibhodi ezinkulu ezinamacandelo amancinci kunye nokubalwa kweenodi eziphezulu ziya kuqhubeka.Umzekelo, uyilo olunye oluzotyelwa ibhodi yesekethe lumalunga ne-116,000 iindawo, ngaphezulu kwe-5,100 yezixhobo, kunye nangaphezulu kwama-37,800 adibeneyo athengisayo afuna uvavanyo okanye ukuqinisekiswa.Le yunithi kwakhona BGAs phezulu nasezantsi, i BGAs ecaleni omnye komnye.Ukuvavanya ibhodi yolu bukhulu kunye nobunzima usebenzisa ibhedi yendabuko yeenaliti, i-ICT enye indlela ayinakwenzeka.
Ukwandisa ukuntsokotha kwePCBA kunye nokuxinana kwiinkqubo zokuvelisa, ngakumbi kuvavanyo, akuyongxaki entsha.Ukuqonda ukuba ukonyusa inani lezikhonkwane zovavanyo kuvavanyo lwe-ICT yayingeyondlela yokuhamba, saqala ukujonga ezinye iindlela zokuqinisekisa isekethe.Ukujonga inani le-probe elahlekileyo kwisigidi ngasinye, sibona ukuba kwii-nodes ze-5000, ezininzi zeempazamo ezifunyenweyo (ezingaphantsi kwe-31) zinokwenzeka ngenxa yeengxaki zoqhagamshelwano lwe-probe kuneziphene zokuvelisa ngokwenene (Itheyibhile 1).Ke sizimisele ukuzisa inani lezikhonkwane zovavanyo phantsi, hayi phezulu.Nangona kunjalo, umgangatho wenkqubo yethu yokuvelisa uvavanywa kuyo yonke i-PCBA.Sagqiba ekubeni ukusebenzisa i-ICT yendabuko edityaniswe ne-X-ray tomography yayisisisombululo esisebenzayo.
Ixesha lokuposa: Mar-03-2023