Kodi stack-up ndi chiyani?
Stack-up imatanthawuza makonzedwe a zigawo zamkuwa ndi zigawo zotetezera zomwe zimapanga PCB isanapangidwe kamangidwe ka bolodi.Ngakhale kusanjikizana kumakulolani kuti muzitha kuzungulira pa bolodi limodzi kudzera mumagulu osiyanasiyana a PCB board, kapangidwe ka PCB stackup kamangidwe kamapereka zabwino zina zambiri:
• Mulingo wa PCB wosanjikiza utha kukuthandizani kuti muchepetse kusatetezeka kwa dera lanu ku phokoso lakunja komanso kuchepetsa ma radiation ndi kuchepetsa nkhawa zapa PCB zothamanga kwambiri.
• Kusanjikiza bwino kwa PCB kungakuthandizeninso kulinganiza zosowa zanu panjira zotsika mtengo, zopangira zogwira mtima ndi nkhawa zokhudzana ndi kukhulupirika kwa ma siginecha.
• Zosanjikiza zolondola za PCB zitha kukulitsa Kugwirizana kwa Electromagnetic kwa kapangidwe kanunso.
Nthawi zambiri zimakhala zopindulitsa kwambiri kutsata kasinthidwe ka PCB kokhazikika pamapulogalamu anu osindikizidwa a board.
Kwa ma PCB ambiri, zigawo zambiri zimaphatikizapo ndege yapansi (ndege ya GND), ndege yamagetsi (ndege ya PWR), ndi zigawo zamkati zamkati.Nazi zitsanzo za 8-wosanjikiza PCB.
ANKE PCB amapereka multilayer / mkulu zigawo zigawo dera matabwa osiyanasiyana 4 mpaka 32 zigawo, bolodi makulidwe kuchokera 0.2mm kuti 6.0mm, mkuwa makulidwe kuchokera 18μm kuti 210μm (0.5oz kuti 6oz), mkati wosanjikiza mkuwa makulidwe kuchokera 18μm kuti 70μm (0.5) oz mpaka 2oz), ndi malo ochepa pakati pa zigawo mpaka 3mil.
