Chii chinonzi stack-up?
Stack-up inoreva kurongeka kwemhangura akaturikidzana uye insulating maseru anoumba PCB pamberi pebhodhi dhizaini.Nepo dhizaini-up ichikutendera iwe kuti uwane mamwe masekete pabhodhi rimwe kuburikidza neakasiyana PCB bhodhi dhizaini, chimiro chePCB stackup dhizaini inopa zvimwe zvakawanda zvakanaka:
• A PCB layer stack inogona kukubatsira kuderedza kusadzivirirwa kwedunhu rako kune ruzha rwekunze pamwe nekuderedza mwaranzi uye kuderedza impedance uye crosstalk zvinonetsa pa-high-speed PCB marongerwo.
• A good layer PCB stack-up inogonawo kukubatsira kudzikamisa zvido zvako zvemutengo wakaderera, nzira dzekugadzira dzinoshanda pamwe nekunetsekana nenyaya dzechiratidzo chekuvimbika.
• Iyo chaiyo PCB layer stack inogona kuwedzera Electromagnetic Kugarisana kwedhizaini yako zvakare.
Zvichawanzova kukubatsira kwako kutevera yakaturikidzana PCB kumisikidzwa kune yako yakadhindwa yedunhu bhodhi-yakavakirwa maapplication.
Kune multilayer PCBs, general layers anosanganisira pasi ndege (GND ndege), simba rendege (PWR ndege), uye mukati mechiratidzo chemukati.Heino muenzaniso we8-layer PCB stackup.
ANKE PCB inopa multilayer/yepamusoro maseketi maseketi mapuranga ari pakati pe4 kusvika 32 akaturikidzana, bhodhi ukobvu kubva 0.2mm kusvika 6.0mm, mhangura ukobvu kubva 18μm kusvika 210μm (0.5oz kusvika 6oz), yemukati layer yemhangura ukobvu kubva 18μm kusvika 70μm (0.5) oz kusvika 2oz), uye nzvimbo shoma pakati pezvikamu kusvika ku3mil.
