Ungabala Kanjani Ubuqotho Besiginali Yemiklamo ye-Rigid-Flex PCB

Ubuqotho besignali yingxenye ebalulekile yokwakheka kwe-PCB, ikakhulukazi kuma-PCB aqinile aguquguqukayo. Lawa mabhodi esekethe ayingqayizivele ahlinzeka ngokuguquguquka nokuthembeka okudingekayo kumishini yanamuhla ethuthukisiwe ye-elekthronikhi. Kodwa-ke, ngenxa yesakhiwo sayo esiyinkimbinkimbi, ukuqinisekisa ubuqotho besignali efanele kumiklamo ye-PCB eguquguqukayo eqinile kungaba inselele.

Kulokhu okuthunyelwe kwebhulogi, sizoxoxa ngezinto ezibalulekile okufanele zicatshangelwe kanye nezinyathelo ezihilelekile lapho kubalwa ubuqotho besignali yemiklamo ye-PCB eguquguqukayo eqinile.

1. Qonda okuyisisekelo kobuqotho besignali

Ubuqotho besignali bubhekisela kwikhwalithi yamasignali kagesi njengoba edlula ku-PCB. Kubandakanya ukuhlaziya nokuphatha izici ezihlukahlukene ezingase zibe nomthelela ekusebenzeni kwesignali, njenge-impedance, umsindo, i-crosstalk, nokuboniswa.

Kuma-PCB aguquguqukayo ahlanganisa ama-substrates aqinile navumelana nezimo, ubuqotho besignali bubaluleka nakakhulu. Inguquko phakathi kwezigaba eziqinile nezivumelana nezimo ingasethula izinguquko ze-impedance, ukunciphisa isignali, nezinye izinkinga zesignali yobuqotho.

2. Thola izimpawu ezibalulekile

Isinyathelo sokuqala ekubaleni ubuqotho besignali ukukhomba amasignali abalulekile edizayini ye-PCB eguquguqukayo. Lawa masignali yiwona azwela kakhulu ezindabeni zobuqotho besignali futhi angafaka amasignali anesivinini esiphezulu, amasignali wewashi, amasignali okulethwa kwamandla, nanoma iyiphi enye isignali ebalulekile ekusebenzeni kahle kwedivayisi.

Ngokugxila kumasignali abalulekile, ungakwazi ukubeka phambili ukuhlaziya kanye nokunciphisa izinkinga zesignali yobuqotho.

3. Hlaziya isilawuli se-impedance

Ukulawulwa kwe-impedance kubalulekile ekugcineni ubuqotho besignali. Iqinisekisa ukuthi i-impedance ye-trace yesiginali ifana nesici somugqa wokudlulisela osetshenzisiwe. Kuma-PCB aguquguqukayo aqinile, izinguquko ze-impedance zingase zenzeke endaweni yoshintsho phakathi kwezingxenye eziqinile nezivumelana nezimo.

Ukuze ubale ukuthintana futhi uqinisekise ukulawula kwakho, ungasebenzisa isibali se-impedance, ithuluzi lokulingisa, noma uthintane neshidi ledatha elinikezwe umkhiqizi we-PCB. Ngokubala ngokunembile nokulawula i-impedance, ukubonakaliswa kwesignali kungancishiswa, kuqinisekiswe ukudluliswa kwesignali okungcono.

4. Lingisa futhi uhlaziye ubuqotho besignali

Ukulingisa iyithuluzi elinamandla lokuhlaziya ubuqotho besignali kumadizayini we-PCB. Ngokusebenzisa isofthiwe ekhethekile, ungakwazi ukulingisa ukuziphatha kwamasignali futhi uhlonze izinkinga ezingaba khona zesignali yobuqotho ngaphambi kokukhiqiza.

Ukulingisa kungakusiza ukuthi uhlole amapharamitha afana nomdwebo weso, isilinganiso sephutha elincane, kanye nemajini yesiginali yobuqotho. Ikuvumela ukuthi uhlole izimo ezahlukahlukene, uthuthukise ukulandelela, futhi uqinisekise ukukhetha kwakho komklamo.

5. Nciphisa inkulumo-mpikiswano

I-Crosstalk yenzeka lapho amasiginali ephazamisana ngenxa yokuhlangana kwe-electromagnetic phakathi kwama-conductor aseduze. Kuma-PCB aguquguqukayo aqinile, ukuphatha i-crosstalk kuyinselele kakhulu ngenxa yokuba seduze kwamakhondatha endaweni eguqukayo.

Ukuze unciphise i-crosstalk, ungasebenzisa amasu afana nokukhulisa isikhala phakathi kokulandela umkhondo, ukusebenzisa izindiza zaphansi noma zamandla njengezihlangu, ukwengeza izinto zokuzihlukanisa, noma ukusebenzisa umzila wokulandelela olawulwa yi-impedance.

6. Cabangela izimpawu ezihlukene

Ukusayina okuhlukile kuwubuchwepheshe obusebenzayo bokudluliswa kwedatha ngesivinini esikhulu. Ngokusebenzisa amasignali amabili ahambisanayo obude obulinganayo kodwa i-polarity ephambene, inikeza ukungavikeleki komsindo futhi inciphisa ithuba lokuwohloka kwesignali.

Kumiklamo ye-PCB eguquguqukayo eqinile, ukusebenzisa amapheya ahlukile kusiza ukugcina ubuqotho besignali futhi kunciphise ukuphazamiseka kozibuthe. Kodwa-ke, ukunakekelwa kufanele kuthathwe ukuze kuqinisekiswe ukuvinjelwa okulinganiselwe kanye nokulawulwa kokunciphisa phakathi kwamapheya ahlukene.

7. Qinisekisa umklamo ngokuphindaphindiwe

Ukuqinisekiswa kwedizayini kuyinqubo ephindaphindayo ebandakanya ukulingisa ngokuphindaphindiwe, ukuhlaziya, nokuhlola umklamo we-PCB. Isiza ukuhlonza nokuxazulula izinkinga zesignali yobuqotho ezigabeni ezihlukene zenqubo yokuklama.

Ngokwenza uchungechunge lokubuyekezwa kwedizayini, ukulingisa ubuqotho besignali, nokuhlolwa kwesibonelo, ungaqinisekisa ukuthi idizayini yakho ye-PCB eguquguqukayo ihlangabezana nezicaciso ezidingekayo zesignali yobuqotho.

Ngokufigqiwe

Ukubala ubuqotho besignali yedizayini ye-PCB eguquguqukayo eguquguqukayo kuhlanganisa ukuqonda izinselele zayo eziyingqayizivele, ukuhlaziya amasiginali abalulekile, ukulawula okubambekayo, ukunciphisa i-crosstalk, kanye nokuqinisekisa ngokuphindaphindiwe umklamo. Ngokulandela lezi zinyathelo kanye nokusebenzisa amathuluzi okulingisa nezindlela zokuqinisekisa, ungaqinisekisa ngempumelelo ubuqotho besignali efanele kumadizayini e-PCB aguquguqukayo.