Kukhona okuhlangene, okuhlangene kabili futhi amabhodi wesifunda anezingqimba eziningi .Inani lamabhodi anezingqimba eziningi alinqunyelwe.Njengamanje kunama-PCB anezingqimba ezingaphezu kuka-100.Ama-PCB anezingqimba eziningi ajwayelekile anezingqimba ezine futhi amabhodi ezingqimba eziyisithupha .Khona-ke kungani abantu benombuzo othi "Kungani amabhodi e-PCB amaningi anezinombolo ezilinganayo? Uma sikhuluma nje, ama-PCB anezinombolo ezilinganayo anama-PCB anezinombolo ezingavamile, futhi anezinzuzo eziningi.
1. Izindleko eziphansi
Ngenxa yokuntuleka kongqimba lwe-dielectric kanye ne-foil, izindleko zezinto zokusetshenziswa zama-PCB anenombolo eyinqaba ziphansi kancane kunalezo zama-PCB anezinombolo ezilinganayo.Kodwa-ke, izindleko zokucubungula zama-PCB anesendlalelo esingavamile ziphezulu kakhulu kunalezo ze-PCB ezilinganayo.Izindleko zokucubungula zesendlalelo sangaphakathi ziyafana, kodwa isakhiwo se-foil/core ngokusobala sinyusa izindleko zokucubungula ungqimba lwangaphandle. I-PCB enenombolo eyinqaba idinga ukungeza inqubo yokubopha ungqimba oluwumgogodla we-laminated engajwayelekile ngesisekelo senqubo yesakhiwo esiwumongo.Uma kuqhathaniswa nesakhiwo senuzi, ukusebenza kahle kokukhiqizwa kwamafekthri anezela i-foil esakhiweni senuzi kuzokwehla.Ngaphambi kwe-lamination kanye ne-bonding, i-core yangaphandle idinga ukucutshungulwa okwengeziwe, okwandisa ingozi yokuklwebheka kanye namaphutha okufaka ungqimba lwangaphandle.
2. Isakhiwo sokulinganisela ukuze ugweme ukugoba Isizathu esingcono kakhulu sokungaklami i-PCB enezingqimba zenombolo eyinqaba ukuthi inombolo eyinqaba yamabhodi esekethe alula ukugoba.Uma i-PCB ipholile ngemva kwenqubo yokuhlanganisa isekethe yezendlalelo eziningi, ukungezwani okuhlukile kwe-lamination kwesakhiwo esiyinhloko kanye nesakhiwo esigqoke ucwecwe kuzobangela i-PCB ukuthi igobe uma iphola.Njengoba ukushuba kwebhodi lesifunda kwanda, ubungozi bokugoba kwe-PCB eyinhlanganisela enezakhiwo ezimbili ezahlukene buyanda.Isihluthulelo sokuqeda ukugoba kwebhodi lesifunda ukuthatha isitaki esilinganiselwe.Nakuba i-PCB enezinga elithile lokugoba ihlangabezana nezidingo zokucaciswa, ukusebenza kahle kokucubungula okulandelayo kuzoncishiswa, okuholela ekwenyukeni kwezindleko.Ngenxa yokuthi imishini ekhethekile kanye nobuciko buyadingeka ngesikhathi sokuhlanganiswa, ukunemba kokubekwa kwengxenye kuyancishiswa, okuzolimaza ikhwalithi.
Ukukubeka ngenye indlela, kulula ukukuqonda: Enqubweni ye-PCB, ibhodi elinezingqimba ezine lilawulwa kangcono kunebhodi elinezingqimba ezintathu, ikakhulukazi ngokulingana.I-warpage yebhodi enezingqimba ezine ingalawulwa ngaphansi kwe-0.7% (i-IPC600 ejwayelekile), kodwa Uma usayizi webhodi elinezingqimba ezintathu likhulu, i-warpage izokweqa leli zinga, okuzothinta ukuthembeka kwesiqephu se-SMT kanye umkhiqizo wonke.Ngakho-ke, umklami ojwayelekile akaklami ibhodi lesendlalelo elinezinombolo ezingavamile, ngisho noma ungqimba olunezinombolo ezingavamile lubona umsebenzi, luzokwenziwa Luklanywe njengesendlalelo esinezinombolo ezingelona iqiniso, okungukuthi, izingqimba ezi-5 zakhiwe njengezendlalelo eziyisi-6, futhi 7 izingqimba yakhelwe njengoba 8-ungqimba amabhodi. Ngokusekelwe kuzizathu ezingenhla, amabhodi amaningi e-PCB anezingqimba eziningi aklanywe anezendlalelo ezinezinombolo ezilinganayo kanye nezingqimba ezinezinombolo eziyinqaba ezimbalwa.
Ungabhalansisa kanjani ukupakishwa nokunciphisa izindleko ze-PCB enezinombolo ezingavamile?
Kuthiwani uma i-PCB enenombolo eyinqaba ivela kumklamo?
Izindlela ezilandelayo zingafinyelela ukunqwabelanisa okulinganiselayo, ukunciphisa Ukukhiqizwa kwe-PCB izindleko, futhi ugweme ukugoba kwe-PCB.
1) Isendlalelo sesignali futhi uyisebenzise.Le ndlela ingasetshenziswa uma ungqimba lwamandla we-PCB yokuklama lulingana futhi ungqimba lwesignali luyinqaba.Isendlalelo esingeziwe asizikhulisi izindleko, kodwa singanciphisa isikhathi sokulethwa futhi sithuthukise ikhwalithi ye-PCB. 2) Engeza isendlalelo samandla esengeziwe.Le ndlela ingasetshenziswa uma ungqimba lwamandla we-PCB yokuklama iyinqaba futhi isendlalelo sesiginali silingana.Indlela elula iwukwengeza ungqimba phakathi kwesitaki ngaphandle kokushintsha ezinye izilungiselelo.Okokuqala, landela isakhiwo se-PCB enezinombolo ezingavamile, bese ukopisha ungqimba lomhlabathi phakathi nendawo ukuze umake izendlalelo ezisele.Lokhu kuyafana nezici zikagesi zongqimba olujiyile lwe-foil. 3) Engeza isendlalelo sesignali esingenalutho eduze nendawo emaphakathi yesitaki se-PCB.Le ndlela inciphisa ukungalingani kokunqwabelanisa futhi ithuthukise ikhwalithi ye-PCB.Okokuqala, landela izendlalelo ezinezinombolo ezingavamile ukuya emzileni, bese wengeza isendlalelo sesignali esingenalutho, bese umaka izendlalelo ezisele.Isetshenziswa kumasekhethi e-microwave nakumasekhethi wemidiya exubile (ama-dielectric constants ahlukene). 
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