Ndi malingaliro otani apangidwe a Multilayer Flexible PCBs?

Kuganizira kamangidwe ka ma PCB osinthika amitundu yambiri kumagwira ntchito yofunika kwambiri pakuwonetsetsa kuti zida zamagetsi ndizodalirika komanso zogwira ntchito. Pamene ukadaulo ukupitilirabe kusinthika, kufunikira kwa ma PCB osinthika kukukulirakulira chifukwa cha zabwino zambiri pakuchepetsa kukula, kuchepetsa thupi, komanso kusinthasintha. Komabe, kupanga multilayer flexible PCB kumafuna kuganizira mozama zinthu zosiyanasiyana kuti zitsimikizire kuti zikuyenda bwino.Mu positi iyi yabulogu, tikuwunika zofunikira pamapangidwe a ma PCB osinthika ambiri ndikukambirana zovuta zomwe zimayenderana ndi mapangidwe awo ndi kupanga kwawo.

Chimodzi mwazinthu zazikulu zamapangidwe a multilayer flex PCBs ndikusankha kwa gawo lapansi.Ma PCB osinthika amadalira zinthu zapansi panthaka monga polyimide (PI) kapena poliyesitala (PET) kuti apereke kusinthasintha kofunikira komanso kukhazikika. Kusankhidwa kwa zinthu zapansi panthaka kumatengera zofunikira pakugwiritsa ntchito, kuphatikiza kukana kutentha, mphamvu zamakina, komanso kudalirika. Zida zosiyanasiyana zapansi panthaka zimakhala ndi magawo osiyanasiyana a kukhazikika kwamafuta, kukhazikika kwa mawonekedwe, ndi ma bend radii, ndipo izi ziyenera kuwunikiridwa mosamala kuti zitsimikizire kuti PCB imatha kupirira zomwe zingakumane nazo.

Kuganiziranso kwina kofunikira ndi kapangidwe kake ka multilayer flexible PCB. Mapangidwe a stackup amatanthawuza kakonzedwe ka magawo angapo a trace ndi zida za dielectric mkati mwa PCB.Kukonzekera mosamalitsa dongosolo la kusanjikiza, kanjira kazizindikiro, ndi kuyika kwamphamvu / pansi ndikofunikira kuti zitsimikizire kukhulupirika kwa ma sign, kuyanjana kwa ma elekitiroleti (EMC), komanso kuwongolera kwamafuta. Mapangidwe a stack-up akuyenera kuchepetsa ma sign crosstalk, impedance mismatch, ndi electromagnetic interference (EMI) kuti zitsimikizire kuti zida zamagetsi zimagwira ntchito modalirika komanso mwamphamvu.

Kayendetsedwe ka ma siginali ndi ndege zamphamvu/pansi kumabweretsa zovuta zina mu ma PCB osinthasintha amitundumitundu poyerekeza ndi ma PCB okhazikika.Kusinthasintha kwa gawo lapansi kumalola mawaya ovuta amitundu itatu (3D), omwe amatha kuchepetsa kwambiri kukula ndi kulemera kwa chipangizo chomaliza chamagetsi. Komabe, zimabweretsanso zovuta pakuwongolera kuchedwa kwa ma siginecha, kutulutsa kwamagetsi, komanso kugawa mphamvu. Okonza ayenera kukonzekera mosamala njira zamayendedwe, kuwonetsetsa kuti chizindikiro chikuyimitsidwa, ndikuwongolera mphamvu / kugawa kwandege pansi kuti muchepetse phokoso ndikuwonetsetsa kusamutsa kolondola.

Kuyika kwazinthu ndi gawo lina lofunikira pamapangidwe a multilayer flex PCB.Kapangidwe kagawo kayenera kuganizira zinthu monga zopinga za malo, kasamalidwe ka kutentha, kukhulupirika kwa ma siginecha, ndi kachitidwe ka msonkhano. Zida zoyikidwa bwino zimathandizira kuchepetsa kutalika kwa njira ya ma sigino, kuchepetsa kuchedwa kutumizira ma siginecha, ndi kukhathamiritsa kutha kwa matenthedwe. Kukula kwa chigawocho, mawonekedwe ake ndi mawonekedwe a kutentha ayenera kuganiziridwa kuti atsimikizire kutentha kwabwino komanso kupewa kutenthedwa m'mapangidwe amitundu yambiri.

Kuphatikiza apo, malingaliro opangira ma PCB osinthika ambiri amafikiranso pakupanga.Zipangizo zosinthika zapansi panthaka, zowongoka zowoneka bwino, ndi ma waya ovuta amafunikira njira zapadera zopangira. Okonza ayenera kugwirira ntchito limodzi ndi opanga kuti awonetsetse kuti mapangidwe ake akugwirizana ndi njira yopangira. Ayeneranso kuganizira zolepheretsa kupanga, monga kukula kochepa, kukula kwa dzenje ndi zofunikira zololera, kuti apewe zolakwika zapangidwe zomwe zingakhudze magwiridwe antchito onse ndi kudalirika kwa PCB.

Zomwe tafotokozazi zikuwunikira zovuta kupanga PCB yosinthika yamitundumitundu.Amagogomezera kufunikira kwa njira yolumikizirana ndi machitidwe pakupanga kwa PCB, pomwe zinthu monga kusankha kwa zinthu zapansi panthaka, mapangidwe a stackup, kukhathamiritsa kwa njira, kuyika kwa zigawo, komanso kuyanjana kwazinthu zopanga zimawunikidwa mosamala. Pophatikiza malingalirowa mu gawo la mapangidwe, opanga amatha kupanga ma PCB osinthika ambiri omwe amakwaniritsa zofunikira pazida zamakono zamakono.

Mwachidule, malingaliro opangira ma PCB osinthika ambiri ndi ofunikira kuti atsimikizire kudalirika, magwiridwe antchito, ndi magwiridwe antchito a zida zamagetsi. Kusankha zinthu zapansi panthaka, kamangidwe ka masanjidwe, kukhathamiritsa kwa mayendedwe, kuyika kwazinthu, komanso kufananiza kwazinthu zopanga ndizinthu zazikulu zomwe ziyenera kuwunikiridwa mosamala panthawi yopanga. Poganizira zinthu izi, okonza akhoza kupanga multilayer kusinthasintha PCBs amene amapereka phindu la kuchepetsa kukula, kuchepetsa kulemera, ndi kuchulukirachulukira, pamene akukwaniritsa zofunika zokhwima zamakono ntchito zamagetsi.