I-Multilayer PCB ithole ukuthandwa okukhulu ezimbonini ezahlukahlukene. Namuhla, kulula ukuthola izinhlobo eziningana ze-PCBS ezinoqweqwe oluningi, kufaka phakathi i-4-layer PCB, i-PCB enezingqimba ezi-6, njalonjalo. Ama-PCBS ayizingqimba eziyisithupha abe yingxenye ebalulekile yokugqokwa okuhlanganisiwe namanye amadivayisi wezokuxhumana abaluleke kakhulu. Yini ebenza bathandwe? Zihluke kanjani kwezinye izinhlobo zama-PCBS amaningi? Lokhu okuthunyelwe kuklanyelwe ukuphendula lonke ulwazi ofuna ukulwazi ngomkhiqizi we-PCB onemigqa emi-6.

Isingeniso ku-PCB engu-6

Njengoba igama lisho, i-PCB enezingqimba eziyisithupha inezingqimba eziyisithupha zokwenziwa kwezinto okuqhuba kahle. Ngokuyinhloko i-PCB enezingqimba ezine enezendlalelo ezimbili ezengeziwe zesiginali ezibekwe phakathi kwezindiza ezimbili. Isitaki se-PCB esijwayelekile esinezingqimba eziyi-6 sinezendlalelo eziyisithupha ezilandelayo: izingqimba ezimbili zangaphakathi, izingqimba ezimbili zangaphandle nezindiza ezimbili zangaphakathi – eyodwa yamandla nenye yokubeka phansi. Lo mklamo uthuthukisa i-EMI futhi unikeze umzila ongcono wezimpawu eziphansi nezisheshayo. Izendlalelo ezimbili zomhlaba zisiza ukuhambisa amasiginali anejubane eliphansi, kuyilapho izingqimba ezimbili zangaphakathi ezingcwatshwe zisiza ukuhambisa amasiginali anejubane elikhulu.

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Idizayini ejwayelekile ye-PCB enezingqimba ezi-6 iboniswa ngenhla; Noma kunjalo, kungahle kungazifaneli zonke izinhlelo zokusebenza. Isigaba esilandelayo siqokomisa ukumiswa okuthile okungaba khona kwe-PCBS engqimba eyi-6.

Ukucatshangelwa okubalulekile lapho kuklanywa ama-PCBS anezingqimba eziyi-6 zezinhlelo zokusebenza ezahlukahlukene

Abakhiqizi be-PCB abakhiwe kahle abangu-6 bangakusiza ukuthi ufeze ukusebenza okungcono ngoba kuzosiza ukucindezela i-EMI, ukusebenzisa izinhlobo ezahlukahlukene zamadivayisi we-RF futhi kufaka phakathi izingxenye ezithile ze-pitch-pitch. Noma yimaphi amaphutha ekwakhiweni kwe-lamination angathinta kakhulu ukusebenza kwe-PCB. Ukuqala kuphi? Nakhu ukuthi ubeka kanjani kahle.

L Njengesinyathelo sokuqala ekwakhiweni kwe-cascading, kubalulekile ukuhlaziya nokubhekana nenani lezisekelo, ukunikezwa kwamandla nezindiza zezimpawu i-PCB engazidinga.

Izendlalelo zokubeka phansi ziyingxenye ebalulekile yanoma ikuphi ukuvikeleka ngoba zinikeza ukuvikelwa okungcono kwe-PCB yakho. Ngaphezu kwalokho, banciphisa isidingo samathangi wokuvikela wangaphandle.

Nawa amanye amadizayini we-PCB wesitaki se-6 afakazelwe izinhlelo zokusebenza ezahlukahlukene:

L Amapaneli ahlangene anezinyathelo ezincane: Uma uhlose ukufaka izintambo zocingo ezinonyawo oluncane, kungafakwa izindiza ezine zamasiginali, indiza eyodwa yomhlaba nendiza yamandla eyodwa.

L Ukuze uthole amabhodi aminyene kakhulu azosebenzisa ukuxuba kwesiginali engenantambo / ye-analog: kulolu hlobo lwebhodi, ungakhetha izendlalelo ezibukeka kanjena: ungqimba lwesiginali / phansi / ungqimba lwamandla / ungqimba lomhlabathi / lwesiginali / ungqimba lomhlabathi. Kulolu hlobo lwesitaki, izingqimba zesiginali yangaphakathi nangaphandle yehlukaniswa izingqimba ezimbili zomhlabathi ezihlanganisiwe. Lo mklamo ogqinsiwe usiza ukucindezela ukuxubana kwe-EMI nongqimba lwesiginali yangaphakathi. Idizayini yokwakheka nayo ilungele amadivayisi we-RF ngoba amandla we-ac kanye nokwehlisa kunika ukuqaqeka okuhle kakhulu.

L Ye-PCB enentambo ebucayi: Uma ufuna ukwakha i-PCB enezintambo eziningi ezizwelayo, kungcono ukhethe ungqimba obukeka kanjena: ungqimba lwesiginali / ungqimba lwamandla / ungqimba lwesiginali 2 / ungqimba lomhlabathi / wesiginali. Lesi sitaki sizohlinzeka ngokuvikelwa okuhle kakhulu kwemikhondo ebucayi. Isitaki silungele amasekethe asebenzisa amasiginali we-analog yemvamisa ephezulu noma amasiginali wejubane ledijithali. Lezi zimpawu zizohlukaniswa nezimpawu zangaphandle ezinejubane eliphansi. Lokhu kuvikelwa kwenziwa ungqimba lwangaphakathi, oluvumela nokuhanjiswa kwamasignali ngamaza ahlukahlukene noma ngesivinini sokushintsha.

L Kumabhodi azotshalwa eduze kwemithombo eqinile yemisebe: yalolu hlobo lwebhodi, ungqimba lomhlabathi / isignali / amandla / isisekelo / isendlalelo sesiginali / isitaki sokwakha umhlaba sizolunga. Lesi sitaki singacindezela ngempumelelo i-EMI. Le lamination ibuye ilungele amabhodi asetshenziswa ezindaweni ezinomsindo.

Izinzuzo zokusebenzisa ungqimba lwe-PCBS lwe-6

Ngenxa yomklamo we-PCB oyizingqimba eziyisithupha, sekuyinto ejwayelekile kumasekethe e-elekthronikhi amaningi athuthukile. Lawa mabhodi ahlinzeka ngezinzuzo ezilandelayo ezenza zithandwe ngabakhiqizi be-elekthronikhi.

Unyawo oluncane: Lawa mabhodi aphrintiwe mancane kunamanye amabhodi ngenxa yokwakheka kwawo kwezingqimba eziningi. Lokhu kuzuzisa ikakhulukazi amadivayisi amancane.

Idizayini eqhutshwa ngekhwalithi: Njengoba kushiwo ngaphambili, ukwakheka kwesitaki se-PCB esino-6 kudinga ukuhlela okuningi. This helps reduce errors in detail, thus ensuring a high-quality build. Ngaphezu kwalokho, bonke abakhiqizi abakhulu be-PCB namuhla basebenzisa izindlela ezahlukahlukene zokuhlola nokuhlola ukuqinisekisa ukufaneleka kwalawa mabhodi.

Ukwakhiwa okulula: ICompact PCBS itholakala ngokusebenzisa izinto ezingasindi ezisiza ukunciphisa isisindo sonke se-PCB. Ngokungafani ne-PCBS yongqimba olulodwa noma olunezingqimba ezimbili, amabhodi anezingqimba eziyisithupha awadingi izixhumi eziningi ukuxhumanisa izingxenye.

L Ukuqina okuthuthukisiwe: Njengoba kukhonjisiwe ngenhla, la ma-PCBS asebenzisa izingqimba eziningi zokuvikela ukuhlangana phakathi kwamasekethe futhi lezi zingqimba zihlanganiswe kusetshenziswa izinto zokuvikela kanye nezinamathiselo ezahlukahlukene ze-prepreg. Lokhu kusiza ukuthuthukisa ukuqina kwalezi PCBS.

L Ukusebenza kahle kukagesi: Lawa mabhodi wesifunda aphrintiwe anokusebenza okuhle kagesi ukuqinisekisa isivinini esikhulu namandla aphezulu emiklamweni ehlangene.