Ukhiye wokuklama kwe-PCB EMC ukunciphisa indawo yokugeleza kabusha futhi uvumele indlela yokugeleza igeleze ibheke lapho kuklanywe khona.Izinkinga zamanje ezibuyayo ezivame kakhulu zivela ekuqhekekeni endizeni yereferensi, ukushintsha ungqimba lwendiza eyinkomba, nesignali egeleza kusixhumi.Ama-jumper capacitor noma ama-decoupling capacitor angase axazulule izinkinga ezithile, kodwa ukukhubazeka okuphelele kwama-capacitor, ama-vias, ama-pads...
Ngokuthuthuka okusheshayo kwamamojula wezimoto ze-elekthronikhi namandla okuxhumana, amabhodi esekethe e-foil e-ultra-thick copper engu-12oz nangaphezulu kancane kancane abe uhlobo lwamabhodi e-PCB akhethekile anamathemba amakethe abanzi, adonse ukunakwa nokunaka kwabakhiqizi ngokwengeziwe;Ngokusetshenziswa okubanzi kwamabhodi esekethe aphrintiwe emkhakheni we-elekthronikhi, izidingo zokusebenza...
Ibhodi lesifunda eliphrintiwe (PCB) ibhodi elincanyana elenziwe nge-fiberglass, i-epoxy eyinhlanganisela, noma ezinye izinto ezilayisile.Ama-PCB atholakala ezingxenyeni ezihlukene zikagesi neze-elekthronikhi ezifana nama-beepers, imisakazo, ama-radar, amasistimu wekhompyutha, njll. Izinhlobo ezahlukene zama-PCB zisetshenziswa ngokusekelwe kuzinhlelo zokusebenza.Yiziphi izinhlobo ezahlukene zama-PCB?Funda ukuze wazi.Yiziphi Izinhlobo Ezihlukene zama-PCB?Ama-PCB ngokuvamile ...
Ukumelana nokulandelela kwe-laminate ye-copper clad kuvame ukuvezwa yi-comparative tracking index (CTI).Phakathi kwezakhiwo eziningi ze-copper clad laminates (i-copper clad laminates for short), ukuphikiswa kokulandelela, njengenkomba ebalulekile yokuphepha nokuthembeka, kuye kwanda ukwanda ngabaklami bebhodi lesifunda se-PCB nabakhiqizi bebhodi lesifunda.Inani le-CTI lihlolwa ngokuvumelana ne...
Lapho uklama amaphedi e-PCB ekwakhiweni kwebhodi le-PCB, kuyadingeka ukuklama ngokuqinile ngokuhambisana nezidingo namazinga afanele.Ngoba ekucubunguleni isichibi se-SMT, ukwakheka kwephedi ye-PCB kubaluleke kakhulu.Umklamo we-pad uzothinta ngokuqondile ukuthengiswa, ukuzinza nokudlulisa ukushisa kwezingxenye.Ihlobene nekhwalithi yokucubungula isichibi.Khona-ke yini i-PC...
Kuyini ukunamathela kwethusi?Okubizwa ngokuthi ukuthululwa kwethusi ukusebenzisa indawo engasetshenzisiwe ku-PCB njengendawo eyireferensi bese uyigcwalisa ngethusi eliqinile.Lezi zindawo zethusi zibizwa nangokuthi ukugcwaliswa kwethusi.Ukubaluleka kwe-copper coating ukunciphisa i-impedance yocingo oluphansi nokuthuthukisa ikhono lokulwa nokuphazamiseka;ukunciphisa ukwehla kwamandla kagesi futhi kuthuthukise ukusebenza kahle kokunikezwa kwamandla;uma...
I-Warping yebhodi yesekethe yebhethri izobangela ukuma okungalungile kwezingxenye;lapho ibhodi ligobile ku-SMT, THT, izikhonkwane zengxenye zizobe zingavamile, okuzoletha ubunzima obuningi emsebenzini wokuhlanganisa nokufaka.I-IPC-6012, i-SMB-SMT Amabhodi esekethe Aphrintiwe anekhasi le-warpage eliphakeme noma elisontekile elingu-0.75%, futhi amanye amabhodi ngokuvamile awadluli u-1.5%;i-warpage evumelekile (kabili...
Kungani ibhodi lesifunda eliphrintiwe lidinga ukulawulwa kwe-impedance?Emugqeni wesiginali yokudlulisela wedivaysi ye-elekthronikhi, ukumelana okuhlangabezwana nakho lapho isignali yefrikhwensi ephezulu noma igagasi logesi lisakazeka kubizwa ngokuthi i-impedance.Kungani amabhodi e-PCB kufanele angasebenzi ngesikhathi sokwenziwa kwefekthri yebhodi lesifunda?Ake sihlaziye kulezi zizathu ezi-4 ezilandelayo: 1. Ibhodi lesifunda le-PCB le ...
Kunamabhodi esekethe anohlangothi olulodwa, anamacele amabili futhi anezingqimba eziningi.Inani lamabhodi anezingqimba eziningi alinqunyelwe.Njengamanje kunama-PCB anezingqimba ezingaphezu kuka-100.Ama-PCB anezingqimba eziningi ajwayelekile anezingqimba ezine namabhodi engqimba ayisithupha.Khona-ke kungani abantu benombuzo othi "Kungani amabhodi e-PCB amaningi anezinombolo ezilinganayo? Uma sikhuluma nje, ama-PCB anezinombolo ezilinganayo anama-PCB anezinombolo ezingavamile, ...
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