Idizayini yezintambo ze-PCB, yokuthuthukisa indwangu ngesilinganiso sesethi ephelele yezindlela, lapha, ukukunikeza nge-PCB design ukuze uthuthukise izinga lendwangu ngesilinganiso sokusebenza kahle komklamo kanye namasu aphumelelayo, hhayi kuphela kumakhasimende okusindisa umjikelezo wokuthuthukiswa kwephrojekthi, kodwa futhi nokwandisa ikhwalithi yomklamo ophelile.
1. Thola inani lezendlalelo ze-PCB
Usayizi webhodi lesifunda kanye nezendlalelo zezintambo zidinga ukunqunywa ekuqaleni komklamo.Uma idizayini idinga ukusetshenziswa kwezingxenye zegridi yebhola enokuminyana okuphezulu (i-BGA), kuyadingeka ukucabangela inani elincane lezendlalelo zezintambo ezidingekayo ukuze kufakwe izintambo zalawa madivayisi.Inombolo yezendlalelo zezintambo kanye nendlela yokupakisha inomthelela oqondile kuzintambo kanye nokuvinjelwa kwezintambo eziphrintiwe.Usayizi webhodi usiza ukunquma indlela yokunqwabelanisa nobubanzi bezintambo eziphrintiwe ukuze kuzuzwe umklamo oyifunayo.
Kuhlale kucatshangwa ukuthi izingqimba ezimbalwa zebhodi, izindleko eziphansi, kodwa kunezinye izici eziningi ezithinta izindleko zokukhiqiza ibhodi.Eminyakeni yamuva, umehluko wezindleko phakathi kwamabhodi we-multilayer wehliswe kakhulu.Kungcono ukuqala umklamo ngezingqimba ezengeziwe zokujikeleza nokusabalalisa ithusi ngokulinganayo ukuze ugweme ukuphoqelelwa ukwengeza izendlalelo ezintsha ngasekupheleni komklamo lapho inani elincane lamasignali litholakala ukuthi alihambisani nemithetho nendawo. izidingo ezichaziwe.Ukuhlela ngokucophelela ngaphambi kokuklama kuzonciphisa i-wiring enkingeni enkulu.
2. Imithetho yokuklama kanye nemikhawulo
Imigqa yesignali ehlukene inezidingo ezahlukene zezintambo, ukuhlukanisa zonke izidingo ezikhethekile zomugqa wesignali, izigaba ezahlukene zokuklama azifani.Isigaba ngasinye sesignali kufanele sibe nokuhamba phambili, ukuphakama okuphezulu, imithetho eqinile.Imithetho ihlobene nobubanzi bezintambo eziphrintiwe, inombolo enkulu yama-vias, ukufana, ukusebenzisana komugqa wesignali, kanye nemikhawulo yesendlalelo, okunomthelela omkhulu ekusebenzeni kwethuluzi lekhebula.Ukucatshangelwa ngokucophelela kwezidingo zokuklama kuyisinyathelo esibalulekile ekwenzeni izintambo eziphumelelayo.
3. Ukuhlelwa kwezingxenye
Ukuze kuthuthukiswe inqubo yokuhlanganisa, imithetho ye-design for manufacturability (DFM) ibeka imikhawulo ekuhlelweni kwengxenye.Uma umnyango womhlangano uvumela ukunyakaza kwengxenye, isifunda singalungiswa ngendlela efanele, okwenza kube lula ukwenza i-wiring ngokuzenzakalelayo.Imithetho echaziwe kanye nemikhawulo ithinta ukwakheka kwesakhiwo.
Iziteshi zomzila kanye nezindawo zidinga ukucatshangelwa ngesikhathi sokuhlela.Lezi zindlela nezifunda zisobala kumklami, kodwa ithuluzi le-wiring elizenzakalelayo lizocabangela kuphela isignali ngesikhathi, ngokubeka izithiyo zezintambo bese usetha ungqimba lomugqa wesignali kungaba yindwangu, ungenza ithuluzi lezintambo lingaba njenge umklami ubenombono wokuthi ukuqedwa kwezintambo.
4. Idizayini yabalandeli
Phuma kusiteji sokuklama, ukuze unike amandla amathuluzi okufaka izintambo okuzenzakalelayo ukuze afake izikhonkwane ukuze axhumeke, amadivayisi wokukhweza ngaphezulu, iphinikhodi ngayinye kufanele okungenani ibe imbobo eyodwa, ukuze esidingweni sokuxhuma okwengeziwe, ibhodi lingaxhunywa kusendlalelo sangaphakathi, ukuhlolwa kwe-in-circuit (ICT) nokucutshungulwa kabusha kwesekethe.
Ukuze wenze ithuluzi lezintambo ezizenzakalelayo lisebenze kahle kakhulu, kubalulekile ukusebenzisa enkulu ngangokunokwenzeka ngosayizi nocingo oluphrintiwe, nesikhala esisethwe ku-50 mils sifanelekile.Sebenzisa uhlobo lwe-vias olukhulisa inani lemizila yomzila.Lapho udizayinela ukuphuma kwabalandeli, cabanga ukuhlola okungaphakathi kwesekhethi.Izinto zokuhlola zingabiza futhi zivame uku-odwa lapho ukukhiqizwa okugcwele sekuseduze, futhi sekwephuzile kakhulu ukuthi ucabangele ukungeza ama-node ukuze kutholakale ukuhlolwa okungu-100%.
Ngemuva kokucatshangelwa ngokucophelela nokulindela, idizayini yokuhlolwa kwesekethe kungenziwa ekuqaleni kwenqubo yokuklama futhi ibonakale kamuva enqubweni yokukhiqiza, ngohlobo lokuphuma kwefeni okunqunywa indlela yokufaka izintambo kanye nokuhlolwa kwesekethe ngaphakathi kwesekethe, ngamandla kanye nesisekelo futhi kunomthelela ekwakhiweni kwezintambo nokuphuma kwabalandeli.Ukuze kuncishiswe i-impedance ye-inductive eyenziwe ulayini wokuxhuma we-filter capacitor, imbobo engaphezulu kufanele ibe seduze kakhulu nezikhonkwane zedivayisi yokukhweza, uma kunesidingo, ingasetshenziswa ukwenza umzila mathupha, okungase kube nomthelela umbono wokuqala wendlela yokufaka izintambo, futhi kungase kuholele nakuwe ekucabangeleni kabusha ukusetshenziswa kwaluphi uhlobo lwembobo engaphezulu, kubalulekile ukucabangela ubudlelwano phakathi kwembobo engaphezulu kanye ne-pin inductive impedance kanye nokusetha okubalulekile kwe-over-hole. imininingwane ye-over-hole.
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Isikhathi sokuthumela: Aug-22-2023