M'dziko laukadaulo lomwe likupita patsogolo mwachangu, kufunikira kwa zida zing'onozing'ono, zopepuka, komanso zamphamvu kwambiri zapangitsa kuti pakhale ma board osindikizira ambiri (PCBs).Mabwalo ozungulirawa ovutawa akhala mbali yofunika kwambiri yamagetsi amakono, kuwalola kuti azigwira ntchito zovuta mogwira mtima.Mubulogu iyi, tisanthula zovuta zama PCB amitundu ingapo ndikukambirana mawonekedwe awo, maubwino, ndi ntchito zofunika m'mafakitale osiyanasiyana.
Multilayer PCB, monga momwe dzinalo likusonyezera, ili ndi zigawo zingapo za mabwalo.Mosiyana ndi ma PCB amtundu umodzi kapena awiri omwe amatha kuthana ndi zovuta zochepa zozungulira, ma PCB amitundu yambiri amatha kukhala ndi maukonde ambiri, kulumikizana, ndi zigawo.Amakhala ndi gawo lapansi (nthawi zambiri FR-4) ndi zigawo zingapo zamkuwa zosiyanitsidwa ndi zigawo zoteteza.Zigawozi zimalumikizidwa ndi mabowo ang'onoang'ono otchedwa vias, kulola kuti zizindikiro ndi mphamvu ziziyenda pakati pa zigawo zosiyanasiyana.
Ubwino wa multilayer PCB:
Kuphatikiza zigawo zingapo pamapangidwe a PCB kumapereka maubwino angapo.Choyamba, ma PCB ambiri amalola kachulukidwe wapamwamba kwambiri, kuwapanga kukhala abwino pazida zamagetsi zophatikizika monga mafoni a m'manja, ma laputopu, ndi zovala.Kuphatikiza apo, amapereka kuwongolera bwino kwa impedance, kuchepetsa kusokoneza ndikuwongolera kukhulupirika kwa chizindikiro.Ma PCB a Multilayer alinso ndi mphamvu zochepetsera kutentha chifukwa cha malo awo okulirapo, zomwe zimapangitsa kuti zigawo ziziziziritsa bwino.Kuphatikiza apo, amawonetsa kufananirana kwamagetsi kwamagetsi (EMC), kuchepetsa kuthekera kwa crosstalk ndikuwonetsetsa kuti magwiridwe antchito odalirika.
Mapulogalamu a Multilayer PCB:
Chifukwa cha kusinthasintha kwake komanso zabwino zambiri, ma PCB ambiri amagwiritsidwa ntchito kwambiri m'magawo osiyanasiyana.M'makampani amagalimoto, amagwiritsidwa ntchito pamakina apamwamba othandizira oyendetsa (ADAS), ma unit control unit (ECUs) ndi infotainment system.Magawo amlengalenga ndi chitetezo amadalira ma PCB ambiri kuti agwiritse ntchito njira zoyankhulirana, ma radar ndi njira zoyendera.M'zachipatala, amagwiritsidwa ntchito pazida monga makina a MRI, ma scanner a ultrasound ndi zida zowunikira odwala.Kuphatikiza apo, ma PCB amitundu yambiri ndi ofunikira kwambiri pama automation a mafakitale, mphamvu zongowonjezwdwanso, komanso zamagetsi zamagetsi.
Malingaliro amtsogolo ndi mapeto:
Pamene luso lazopangapanga likupita patsogolo kwambiri kuposa kale lonse, ma PCB a multilayer asanduka mbali yofunika kwambiri pazamagetsi.Pomwe kufunikira kwa miniaturization ndi magwiridwe antchito apamwamba kukupitilira kukula, gawo la ma PCB ambiri lipitilira kukula.Ofufuza ndi mainjiniya akupitiliza kufufuza zida zatsopano ndi njira zopangira kuti apititse patsogolo mapangidwe ndi magwiridwe antchito a ma PCB ambiri.
Mwachidule, ma PCB amitundu yambiri asintha makampani opanga zamagetsi popereka compactness, magwiridwe antchito, komanso kudalirika.Iwo athandiza kwambiri pakupanga zida zazing'ono, zogwira mtima kwambiri zamagetsi zomwe zimapanga moyo wathu watsiku ndi tsiku.Pamene tikulowera kudziko lanzeru, lolumikizidwa kwambiri, tsogolo la ma PCB ambiri lili ndi kuthekera kwakukulu koyendetsa kupita patsogolo kwaukadaulo.
Nthawi yotumiza: Sep-13-2023