Izinhlobo ezihlukahlukene zamabhodi wesifunda

The ibhodi yesifunda ephrintiwe noma i-PCB iyibhodi yokwesekwa ngokomzimba ngenkathi ixhuma ngogesi izingxenye ezihlukahlukene ze-elekthronikhi zesistimu ebanzi. Ibhodi lesifunda lisebenzisa i-wiring conductive, i-padding nezinye izinto ezinanela kusuka kungqimba lwethusi.

Uhlangothi olulodwa

Njengoba igama liphakamisa, i-PCB enohlangothi olulodwa yenziwe ngento eyodwa, eyaziwa nangokuthi “i-substrate.” Phezulu kwesisekelo kukhona ungqimba omncane we-foil owenziwe ngethusi. Lokhu kusebenza njengomqhubi wamasignali kagesi.

Lezi izinhlobo ezivame kakhulu ze-PCBS futhi zithandwa kakhulu ekukhiqizeni umthamo ngenxa yezindleko zabo eziphansi. Lawa mabhodi avame ukutholakala kumakhamera, kuma-calculator nasezinsizeni zomsakazo.

Angabuye atholakale kumiklamo elula yamathoyizi.

Izinhlangothi ezimbili

Amabhodi esekethe aphrintelwe kabili asebenza njengamabhodi esekethe aphrintelwe ohlangothini olulodwa, kodwa ahlanganiswe phakathi kwezingqimba zokuhambisa ezinhlangothini zombili. Ngaphezu kwalokho, zenzelwe ukuthi zibe nezimbobo ezimbozwe epuletini.

Lezi zimbobo zibekwe ebhodini ukuvumela isekethe ukuthi ifakwe nhlangothi zombili ze-PCB noma idliwe ngebhodi. Ukuguquguquka okwengeziwe kanye nezindawo eziqhutshwayo zivumela izinto ezihlangene kabili ukuthi zisetshenziswe ezinhlelweni ezithuthuke kakhulu.

Ama-PCBS anezinhlangothi ezimbili avame ukutholakala komakhalekhukhwini, emishinini yokuthengisa, iziqapha zezimoto kanye nemishini yamamitha kagesi.

I-Multilayer

Idizayini inezinhlangothi ezimbili futhi inweba kuwo. I-multilayer iqoqo le-PCBS ezinhlangothi zombili ezingekho ngaphansi kwezintathu (3). Bathatha ubuchwepheshe obusungulwe lapha futhi bakhulise umthamo wabo wokukhiqiza.

Usayizi nesikhala kuyizinzuzo eziyinhloko ze-PCBS enezingqimba eziningi. Bangasebenzisa ibhodi le-multilayer esikhundleni samabhodi amaningana.

Ziyingxenye ebalulekile yamasekhethi anesivinini esikhulu ngoba usayizi webhodi lawo uvumela ukuhlelwa okufanelekile komqhubi namandla.

Yenziwe lukhuni

I-PCBS eqinile ingaba eyodwa, kabili, noma enezendlalelo eziningi. I-Rigidity ibhekisela ku-substrate material okwenziwa ngayo amabhodi. Uma i-PCB iqinile, njengoba negama lisho, yenziwe ngezinto ezimelana nokuhlanekezelwa noma ukuguqulwa.

I-PCB eqinile ejwayeleke kakhulu ibhodi lomama kukhompyutha. Zenzelwe ukuthi zihlale isikhathi eside futhi zingasetshenziswa endaweni eyodwa kanye nokuma.

I-PCBS eqinile iyazuza ngokulungiswa kalula kanye nokusebenziseka kalula. Wonke amaphrojekthi anendawo futhi amakwa ngokucacile lapho eklanywe. Azikhawulelwe kumklamo owodwa futhi zingasukela kusendlalelo esisodwa kuye kweziyishumi (10) ezakhiweni ze-PCB yesendlalelo.

Flexible

I-PCBS eguquguqukayo isebenza ngendlela efanayo ne-PCBS eqinile, kodwa yenziwe ngezinto ezahlukene.

Amapuleti aqinile enziwe ngezinto eziqinile (okusho ukubamba isimo sazo) (imvamisa ingxube ye-fiberglass), kuyilapho amapuleti aguquguqukayo enziwa ngepulasitiki noma izinto ezifanayo.

Ukuguquguquka okungokoqobo kuyinzuzo enkulu ye-PCBS eguquguqukayo. Ukonga izindleko kungenzeka ngenxa yekhono labo “lokusonga” izindawo lapho amapuleti aqinile kungase kudingeke ahambe khona.

Izinhlelo zokusebenza eziyinhloko ze-PCBS eziguquguqukayo zikuzinhlelo ezingase zidale umonakalo endaweni. Ukwakheka kwazo kuzenza zimelane kakhulu nezinga lokushisa, amanzi, ukugqwala nezinye izakhi ezingase zilimaze amapuleti aqinile.

Hlanganisa futhi uthambile

I-Rigid-flexibility Ivala igebe phakathi kwezinhlobo ezimbili ezakhelwe phezu kombhalo nezithombe, ezivame kakhulu kumaselula namakhamera edijithali.

Lokhu kufaka phakathi isethi yamasekhethi aguquguqukayo axhunywe kumapuleti amaningi aqinile. Lokhu kwenza umklamo ube lula nakakhulu, njengoba uhlanganisa zonke izakhi ezidingekayo kulezi zingxenye zibe ingxenye “eyodwa”.

Ukuqina nokuvumelana nezimo kungatholakala nasezinhlelweni zezokwelapha.

I-aluminium emuva

Ukukhipha ukushisa kumaphakathi ne-PCB. Lapho izinga lokushisa lesistimu licatshangelwa, ukusebenzisa i-PCB ye-aluminium backboard kuyisinqumo esingcono kakhulu, esihlanganisa nezinye izinzuzo ezisobala.

Isakhiwo se-PCB sicishe sifane nesendlalelo esisodwa esijwayelekile noma esikabili, kodwa izinto ezisetshenziswayo ziyahlukahluka.

Zihlala isikhathi eside futhi zinobungani bemvelo. I-Aluminium ayinabo ubuthi futhi kulula kakhulu ukuyigaya kabusha. Ngaphezu kwalokho, ishibhile ngendlela emangalisayo, ingenye yezinsimbi ezishibhe kakhulu ezimayini, futhi ishibhile ukwenza.

Imvamisa ephezulu

I-Hf PCBS ayakhiwe ngendlela entsha, isibonelo, ukuqhathanisa isendlalelo esisodwa neziningi, kodwa bhekisela ohlotsheni lokusetshenziswa. I-PCBS yefrikhwensi ephezulu ingasetshenziswa uma amasiginali adinga ukudluliselwa ngamanani aphezulu kuno-1GHz. Zisetshenziswa kakhulu ezinhlelweni ezinkulu zokuxhumana.

Izinzuzo zokusebenzisa i-PCB

Nakuba uhlobo ngalunye lwebhodi lunezinzuzo zalo, kunezinzuzo eziningi zokusebenzisa i-PCB ngokujwayelekile.

Easy ukudubula izinkinga kanye nokugcinwa

Isakhiwo, noma “ukulandelela,” kwebhodi kwenza kube lula ukuhlonza amathuluzi ayinkinga bese uwashintsha

Susa futhi unamathisele kabusha ebhodini

Ukusebenza kahle kwe: Asikho isidingo sokwakha kabusha yonke isifunda lapho ulungisa noma ushintsha

Ibhodi lesifunda liwuhlelo olwenziwe ngaphambilini futhi lithatha isikhathi esincane kakhulu ukwakha kunesekhethi evamile

Umsindo ophansi: Isakhiwo se-PCB esiklanywe kahle singaholela ezingxenyeni zikagesi ezinemisebe ephansi, ezaziwa ngele-“cross talk.”

Isiza ukususa umsindo we-elekthronikhi ongehlisa isithunzi ukusebenza kwedivayisi

Ukwethembeka: Ngakho-ke, ukuxhuma kwebhodi kufakwe ngocingo lwethusi. Akukho ukuxhumana okuxekethile noma “izintambo ezinyakazayo.”

I-welding ixhuma zonke izingxenye ebhodini ngokwayo, ngakho-ke zisebenza ngisho noma ibhodi lihanjiswa.