Kodi izi zikutanthauza chiyani pa malonda apamwamba a PCB?
Choyamba, popanga ndi kupanga ma pCB stacks, zinthu zakuthupi ziyenera kutsatiridwa. 5G PCBS iyenera kukwaniritsa zojambula zonse mukamanyamula ndikulandila kutumiza pazithunzi, kupereka mafosholo amagetsi, ndikumapereka ntchito zina. Kuphatikiza apo, zovuta zomwe PCB adzafunika kuyankhidwa, monga kusunga ukulu wa zizindikiro pa liwiro lalitali, oyang'anira mafuta, komanso momwe angapewere kulowerera kwa electromagneti (EMI) pakati pa data.

Chizindikiro chosakanikirana cholandila
Masiku ano, machitidwe ambiri amakumana ndi 4g ndi 3g ma pcbs. Izi zikutanthauza kuti gawo la gawo limapereka ndikulandila mtundu wa 600 mhz mpaka 5.925 ghz, ndi kayendedwe ka bandwid ndi 20 mhz, kapena 200 khz chifukwa cha ma sez. Mukamapanga ma PCB a ma 5g network Kwa njira za bandwidth, machitidwe a 5g akonzedwa pansi pa 6GHz ndi 400mhz pamwamba pa 6ght.

Kuthamanga kwambiri ndi maulendo apamwamba kwambiri kumafunikira kugwiritsa ntchito zinthu zoyenera mu PCB kupita nthawi yomweyo ndikutumiza zizindikiro zotsika komanso zopota. Vuto lina ndikuti zida zidzapepuka, ndizofunikira kwambiri, komanso zazing'ono. Chifukwa cha kunenepa kwambiri, kukula ndi zopinga zambiri, zida za PCB ziyenera kukhala zosinthika ndipo zopepuka kuti zizikhala ndi zida zonse za ma microelectronic pagulu.

Kwa mkuwa wa PCB mkuwa, wowonda komanso wosakhazikika kuwongolera ayenera kutsatiridwa. Njira yodziwikiratu yokhazikika yomwe imagwiritsidwa ntchito pa 3G ndi 4G yayikulu ma PCB imathamangitsidwa ku njira yosinthidwa ya Semi. Njira zowonjezera zowonjezera zowonjezera zimaperekanso makoma ndi makoma owopsa.

Mazikowo akukonzedwanso. Makampani osindikizidwa osindikizidwa amaphunzira zinthu zomwe zimakhala ndi sekondale monga 3, chifukwa zida zofanana ndi ma pcbs otsika nthawi zambiri zimakhala 3.5 mpaka 5.5. Kuwala kwa galasi kuluka, kuchepa kochepa kwa chinthu chotayika ndikusandukanso PCB yayitali ya digito, potero kupewa kutayika kwa digito ndikusintha kuperewera kwa chizindikiro.

EMI ikuteteza vuto
EMI, Crostayk ndi parasitic carritic ndiye mavuto akulu a mabwalo ozungulira. Pofuna kuthana ndi crostalk ndi EMI chifukwa cha analog ndi maulendo a digito pa bolodi, ndikulimbikitsidwa kuti mupatule. Kugwiritsa ntchito matabwa amitundu kumaperekanso kusinthasintha momwe angayikire kusintha kwamphamvu kwambiri kuti njira zobwezeretsera za Analog zimasungidwa wina ndi mnzake, ndikusunga mabwalo a AC ndi DC Olekanitsidwa. Kuphatikiza zotchinga ndi kusefa mukamayika zigawo ziyeneranso kuchepetsa kuchuluka kwa EMI wachilengedwe pa PCB.

Pofuna kuonetsetsa kuti palibe vuto komanso mabwalo apafupi ozungulira kapena mabwalo otseguka owoneka bwino owunikira (Aio) Matekinoloje awa adzathandiza opanga PCB amayang'ana zoopsa zowonongeka.

Mavuto Oyang'anira Mafuta
Kuthamanga kwakukulu kumapangitsa kuti pakhale pa PCB kuti ipange kutentha kwambiri. Zipangizo za PCB pakupanga ma sekondale komanso zigawo zopindika zimafunikira kusamalira kuthamanga kwapamwamba kofunikira ndi ukadaulo wa 5G. Ngati nkhaniyo sizakukwanira, zingayambitse mayendedwe a mkuwa, kuyika, kuwononga, chifukwa mavutowa adzapangitsa PCB kuti ithe.

Pofuna kuthana ndi matenthedwe apamwamba awa, opanga adzafunika kuyang'ana pa kusankha kwa zinthu zomwe zimawunikira zamagetsi komanso zopatsa mphamvu zamafuta. Zipangizo zamagetsi zapamwamba, kusamutsa kwapamwamba kwambiri, komanso kusasinthika kosalekeza kuyenera kugwiritsidwa ntchito kupanga PCB yabwino kuti ipereke mawonekedwe onse ofunikira pa ntchitoyi.