niki substrate muri pcb

Ikibaho cyumuzingo cyacapwe (PCBs) cyahindutse igice cyingenzi cyikoranabuhanga rigezweho, rikoresha ibikoresho byose bya elegitoroniki twishingikirizaho buri munsi.Mugihe ibice nibikorwa bya PCB bizwi neza, hari ikintu kimwe gikomeye gikunze kwirengagizwa ariko kikaba gikomeye mubikorwa byacyo: substrate.Muri iyi nyandiko ya blog, tuzareba icyo substrate iri muri PCB n'impamvu igira uruhare runini.

Niki substrate muri PCB?

Substrates, bakunze kwita PCB substrates cyangwa ibikoresho byubuyobozi, nibyo shingiro ryo gushiraho ibikoresho bya elegitoroniki PCB.Nibikoresho bitayobora bitanga inkunga yuburyo kandi ikora nkigikoresho cyo gukwirakwiza amashanyarazi hagati yumuringa ku kibaho cyumuzunguruko.Ibikoresho bikoreshwa cyane mubukorikori bwa PCB ni fibre fibre ikomeza epoxy laminate, izwi nka FR4.

Ibisobanuro by'ibikoresho fatizo:

1. Inkunga ya mashini:
Igikorwa nyamukuru cya substrate nugutanga ubufasha bwibikoresho byoroshye byashyizwe ku kibaho.Iremeza ituze kandi irambye ya PCB, ikayemerera kwihanganira imihangayiko yo hanze, kunyeganyega nubushyuhe bwubushyuhe.Hatariho substrate ikomeye, uburinganire bwimiterere ya PCB burashobora guhungabana, bikabangamira imikorere no kuramba kwibikoresho bya elegitoroniki.

2. Gukoresha amashanyarazi:
Substrate ikora nka insulator yumuriro hagati yumuringa uyobora umuringa kuri PCB.Zirinda ikabutura y'amashanyarazi no kwivanga hagati y'ibice bitandukanye n'ibimenyetso, bishobora gutera imikorere mibi cyangwa kwangirika.Byongeye kandi, dielectric yimiterere ya substrate ifasha kugumana ubunyangamugayo nubwiza bwibimenyetso byamashanyarazi bitembera mubibaho.

3. Gukwirakwiza ubushyuhe:
Ibikoresho bya elegitoronike byanze bikunze bitanga ubushyuhe mugihe gikora.Substrates igira uruhare runini mugukwirakwiza neza ubushyuhe kure yibigize kugirango bikomeze gukora neza.Ibikoresho bimwe na bimwe bya substrate, nkibyuma bya PCBs cyangwa ceramics, byongereye ubushyuhe bwumuriro, bituma habaho ubushyuhe bwiza kandi bikagabanya ibyago byo gushyuha.

4. Ubunyangamugayo bw'ikimenyetso:
Ibintu bifatika bya substrate bigira ingaruka zikomeye kubimenyetso bya PCB.Kurugero, kugenzura impedance itanga urujya n'uruza rw'ibimenyetso byihuta cyane bitabaye ngombwa.Ihoraho rya dielectric hamwe nigihombo cyibintu bya substrate bigira ingaruka kumikorere iranga inzitizi no gukwirakwiza umurongo, amaherezo bikagena imikorere rusange no kwizerwa bya PCB.

Nubwo substrate idashobora guhora igaragara cyane, igira uruhare runini mubikorwa, kuramba no kwizerwa byicapiro ryumuzingo wacapwe.Akamaro ka substrate ntigashobora gushimangirwa cyane, kuva gutanga ubufasha bwa mashini no kwigunga amashanyarazi kugeza korohereza ikwirakwizwa ryubushyuhe no gukomeza ubusugire bwibimenyetso.Gusobanukirwa n'akamaro ko guhitamo ibikoresho bya substrate bikwiye hamwe nimiterere yabyo ningirakamaro kubashushanya PCB, ababikora nabakunda ibikoresho bya elegitoroniki.Mugusobanukirwa uruhare rwa substrate, turashobora kwemeza iterambere ryimikorere nigikorwa cyibikoresho bya elegitoroniki byateye imbere kandi neza.