I-SMT(Printed Circuit Board Assembly, PCBA) ibizwa nangokuthi ubuchwepheshe be-surface mount.Phakathi nenqubo yokukhiqiza, i-solder paste iyashiswa futhi incibilike endaweni yokushisa, ukuze amaphedi e-PCB ahlanganiswe ngokuthembekile nezingxenye ze-surface mount ngokusebenzisa i-solder paste alloy.Le nqubo siyibiza ngokuthi i-reflow soldering.Iningi lamabhodi esekethe lithambekele ekugobeni nasekwenzeni ibhodi uma lihlehliswa...
Ibhodi le-HDI, ukuminyana okuphezulu kokuxhumana okuphrintiwe ibhodi lesifunda Amabhodi e-HDI angobunye bobuchwepheshe obukhula ngokushesha kuma-PCB futhi manje butholakala e-ABIS Circuits Ltd. Amabhodi e-HDI aqukethe ama-vias angaboni kanye/noma angcwatshwe, futhi ngokuvamile aqukethe ama-microvias angu-0.006 noma amancane ububanzi.Banobuningi besifunda obuphakeme kunamabhodi wesifunda wendabuko.Kunezinhlobo eziyisi-6 ezihlukene zamabhodi we-HDI PCB, ukusuka phezulu kuye ku-su...
Iyini i-Silkscreen ku-PCB?Uma uklama noma u-oda amabhodi esekethe akho aphrintiwe, ingabe udinga ukukhokha okwengeziwe ngesikrini sikasilika?Kukhona imibuzo odinga ukuyazi ukuthi yini isikrini sikasilika?Futhi isikrini sikasilika sibaluleke kangakanani ekwenziweni kwebhodi lakho le-PCB noma i-Printed Circuit Board Assembly?Manje i-ABIS izokuchazela.Yini isikrini sikasilika?Isikrini sikasilika ungqimba lwemikhondo kayinki esetshenziselwa ukuhlonza izingxenye, ...
Ibhodi lesifunda eliphrintiwe lakhiwe ngezingqimba zamasekethe e-foil yethusi, futhi ukuxhumana phakathi kwezingqimba ezihlukene zesekethe kuncike kulezi "vias".Lokhu kungenxa yokuthi ukukhiqizwa kwebhodi lesifunda lanamuhla lisebenzisa izimbobo ezibhoboziwe ukuxhuma amasekhethi ahlukene.Phakathi kwezingqimba zesifunda, kufana nesiteshi sokuxhuma somzila wamanzi ongaphansi komhlaba onezingqimba eziningi.Abangane abadlale ividyo ethi "Brother Mary"...
Esivame ukubhekisela kukho ukuthi "FR-4 Fiber Class Material PCB Board" igama lekhodi lebanga lezinto ezingashi.Imele ukucaciswa kwezinto ezibonakalayo okumele i-resin ikwazi ukuzicisha ngokwayo ngemva kokushiswa.Akulona igama eliphathekayo, kodwa uhlobo lwezinto ezibonakalayo.Ibanga lezinto ezibonakalayo, ngakho-ke kunezinhlobo eziningi zezinto zebanga le-FR-4 ezisetshenziswa kumabhodi wesifunda ajwayelekile njengamanje, kodwa...
Ukuhlola kwe-TDR okwamanje kusetshenziswa kakhulu kubakhiqizi bebhodi lesekhethi yebhethri ye-PCB (amabhodi esekethe ephrintiwe) imigqa yesignali nokuhlolwa kokuvinjwa kwedivayisi.Kunezizathu eziningi ezithinta ukunemba kokuhlolwa kwe-TDR, ikakhulukazi ukubonisa, ukulinganisa, ukukhetha ukufunda, njll. Ukuzindla kuzodala ukuphambuka okukhulu kunani lokuhlola lomugqa wesignali we-PCB omfushane, ikakhulukazi uma kusetshenziswa i-TIP (probe) ...
I-Vias ebhodini lesekethe ibizwa ngokuthi i-vias, ehlukaniswe ngemigodi, imigodi eyimpumputhe kanye nezimbobo ezigqitshiwe (i-HDI Circuit Board).Ngokuyinhloko zisetshenziselwa ukuxhuma izintambo ezingqimbeni ezihlukene zenethiwekhi efanayo futhi ngokuvamile azisetshenziswa njengezingxenye ze-soldering;Amaphedi ebhodini lesifunda abizwa ngokuthi ama-pads, ahlukaniswe abe ama-pin pads kanye nama-surface mount pads;amaphinikhodi anezimbobo ze-solder, okuyi...
Isikhathi sokugcina se-PCB, kanye nezinga lokushisa nesikhathi sokusebenzisa ihhavini yezimboni ukubhaka i-PCB konke kulawulwa yimboni.Ithini impilo yeshelufu ye-PCB?Futhi indlela yokunquma isikhathi sokubhaka kanye nezinga lokushisa?1. Ukucaciswa kokulawula kwe-PCB 1. Ukukhumula nokugcinwa kwe-PCB (1) Ibhodi le-PCB lingasetshenziswa ngokuqondile ku-inthanethi phakathi nezinyanga ezi-2 zosuku lokukhiqiza lwebhodi le-PCB elivalwe futhi elingavuliwe...
Ngokufika kweminyaka yolwazi lwedijithali, izimfuneko zokuxhumana okufika phezulu, ukudluliswa kwesivinini esikhulu, kanye nokuba yimfihlo okuphezulu kwezokuxhumana ziya ngokuya ziba phezulu.Njengomkhiqizo osekelayo obalulekile embonini yobuchwepheshe bolwazi lwe-elekthronikhi, i-PCB idinga i-substrate ukuthi ihlangabezane nokusebenza kwe-dielectric engaguquki, into ephansi yokulahlekelwa kwemidiya, izinga lokushisa eliphezulu...
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