Ukuze kube lula ukukhiqiza, ukuthunga kwe-PCB ngokuvamile kudinga ukuklama iphuzu le-Mark, i-V-slot, unqenqema lokucubungula.
I. Ukuma kwepuleti lesipelingi
1. Uhlaka lwangaphandle lwebhodi lokuhlanganisa le-PCB (i-clamping edge) kufanele lube idizayini ye-loop evaliwe ukuze kuqinisekiswe ukuthi ibhodi lokuhlanganisa le-PCB ngeke lonakale ngemva kokuba seligxilile ku-fixture.
2. Ububanzi be-PCB splice ≤ 260mm (umugqa we-SIEMENS) noma ≤ 300mm (umugqa we-FUJI);uma ukukhishwa okuzenzakalelayo kuyadingeka, ububanzi be-PCB splice x ubude ≤ 125 mm x 180 mm.
3. PCB splicing board shape eduze kwesikwele ngangokunokwenzeka, kunconyiwe 2 × 2, 3 × 3, …… ibhodi lokuhlanganisa;kodwa ungapeleli ebhodini le-yin ne-yang.
II.I-V-slot
1. ngemva kokuvula i-V-slot, ukushuba okusele X kufanele kube (1/4 ~ 1/3) ukujiya kwebhodi L, kodwa ubukhulu obuncane be-X kumele bube ≥ 0.4mm.Umkhawulo ongaphezulu webhodi elithwala umthwalo osindayo ungathathwa, umkhawulo ophansi webhodi elithwala imithwalo elula.
2. I-V-slot ezinhlangothini zombili zezinotshi ezingenhla neziphansi zokungahambi kahle kuka-S kufanele zibe ngaphansi kuka-0.1mm;ngenxa yobukhulu obuncane obusebenzayo bemikhawulo, ukushuba kwebhodi elingaphansi kuka-1.2mm, akufanele kusetshenziswe indlela yebhodi lokupela le-V-slot.
III.Maka iphuzu
1. Setha iphoyinti lokuma kwereferensi, ngokuvamile endaweni yokuma eduze kwekhefu ngo-1.5 mm ubukhulu kunendawo yokunamathisela engazweli.
2. Isetshenziselwa ukusiza ukuma kokubona komshini wokubeka inedivayisi ye-chip PCB board diagonal okungenani amaphoyinti amabili ereferensi a-asymmetric, yonke indawo ye-PCB yokubona enephoyinti lereferensi ngokuvamile ikuyo yonke indawo ehambisana nediagonal ye-PCB;ucezu lwe-PCB optical positioning enephoyinti eliyireferensi ngokuvamile luyingxenye ye-PCB ehambisana nendawo ehambisanayo.
3. ukuze uthole isikhala somthofu ≤ 0.5mm QFP (iphakheji eliyisikwele esiyisikwele) nesikhala sebhola ≤ 0.8mm BGA (iphakheji ye-ball grid array) amadivayisi, ukuze kuthuthukiswe ukunemba kokubekwa, izimfuneko ze-IC isethi ye-diagonal yamaphoyinti okubhekisela.
IV.Unqenqema lwenqubo
1. Uhlaka lwangaphandle lwebhodi lokuchibiyela kanye nebhodi elincane langaphakathi, ibhodi elincane kanye nebhodi elincane phakathi kwendawo yokuxhuma eduze nedivayisi ayikwazi ukuba amadivayisi amakhulu noma aphumayo, futhi izingxenye kanye nonqenqema lwebhodi le-PCB kufanele kushiywe okungaphezu kwalokho. 0.5mm yesikhala ukuqinisekisa ukusebenza okuvamile kwethuluzi lokusika.
V. izimbobo zokubeka ibhodi
1. ukuze kumiswe i-PCB yalo lonke ibhodi kanye nokubeka izimpawu zokuma kwe-PCB yephimbo elicolekile, empeleni, iphimbo elingaphansi kuka-0.65mm QFP kufanele limiswe endaweni yalo edayagonali;Izimpawu zokuma kwebhodi elingaphansi le-PCB kufanele zisetshenziswe ngababili, zihlelwe kudiagonali yezinto zokuma.
2. Izingxenye ezinkulu kufanele zishiywe namakholomu okumisa noma izimbobo zokubeka, kugxilwe kuzo ezifana nezindawo zokusebenzelana ze-I/O, imibhobho, ukuxhumana kwebhethri, ama-microswitches, ukuxhumana kwama-headphone, amamotho, njll.
Umklami omuhle we-PCB, ekwakhiweni kokuhlanganiswa, ukucabangela izici zokukhiqiza, ukwenza lula ukucubungula, ukuthuthukisa ukusebenza kahle kokukhiqiza nokunciphisa izindleko zokukhiqiza.
Isikhathi sokuthumela: May-06-2022