Kuchuluka kwafupipafupi kwa bolodi yotembenukira mwachangu ya PCB

Zikafika pazida zamagetsi ndi ma board osindikizira (PCBs), chinthu chofunikira kwambiri chomwe mainjiniya ndi opanga amawona kuti ndi pafupipafupi. Chiyerekezochi chimatsimikizira ma frequency apamwamba kwambiri omwe dera limatha kugwira ntchito modalirika popanda kutayika kulikonse kapena kuchepetsedwa kwa chizindikiro.Mu positi iyi yabulogu, tiwona kufunikira kwa kuchuluka kwafupipafupi kutembenuza ma board a PCB mwachangu ndikukambirana momwe zimakhudzira mapangidwe ndi magwiridwe antchito a zida zamagetsi.

Kuchuluka kwa ma frequency ndi gawo lofunikira kwambiri pochita ndi makina othamanga kwambiri komanso ovuta.Zimatanthawuza kuchuluka kwafupipafupi komwe chizindikiro chimatha kufalitsidwa kudzera pa PCB popanda kupotoza kapena kutaya chizindikiro. Mlingo uwu umakhala wofunikira kwambiri zikafika posintha mwachangu ma board a PCB, chifukwa matabwawa amagwiritsidwa ntchito popanga ndi kuyesa magawo a zida zatsopano zamagetsi.

Ma board a Rapid Turnaround Prototype PCB amapangidwa ndi nthawi yochepa yosinthira ndipo amagwiritsidwa ntchito ngati umboni wa lingaliro, kuyesa, ndi kutsimikizira kapangidwe koyamba.Cholinga chawo ndikuwonetsetsa kuti chomalizacho chimagwira ntchito momwe amayembekezera asanalowe muzopanga zonse. Choncho, amayenera kugwira ntchito modalirika pamafupipafupi ofunikira kuti awonetsere bwino ntchito ya chinthu chomaliza.

Maulendo okwera kwambiri a bolodi ya PCB yotembenukira mwachangu imakhudzidwa ndi zinthu zosiyanasiyana, kuphatikiza zinthu za PCB, kapangidwe kake, mawonekedwe a mzere wotumizira, komanso kupezeka kwa zosokoneza zilizonse kapena magwero a phokoso.Kusankha zinthu ndikofunikira chifukwa mitundu ina ya ma PCB imatha kuthana ndi ma frequency apamwamba kwambiri kuposa ena. Zida zothamanga kwambiri monga Rogers 4000 Series, Teflon, kapena PTFE laminates nthawi zambiri amagwiritsidwa ntchito kutembenuza ma PCB a prototype kuti akwaniritse magwiridwe antchito apamwamba kwambiri.

Mapangidwe apangidwe amathandizanso kwambiri pakuzindikira kuchuluka kwa ma frequency a board a PCB.Kufananiza koyenera, kutalika koyang'anira kutsata, ndikuchepetsa kuwunikira kwa ma sign kapena crosstalk ndi njira zofunika kuwonetsetsa kuti ma siginecha akufalikira bwino popanda kuchepetsedwa. Mawonekedwe a PCB opangidwa mosamala amachepetsa chiwopsezo cha kusokonekera kwa ma siginecha ndikusunga kukhulupirika kwa ma siginecha apamwamba kwambiri.

Mawonekedwe a mzere wotumizira, monga m'lifupi mwake, makulidwe, ndi mtunda kuchokera pansi, zimakhudzanso kuchuluka kwa ma frequency ovotera.Magawo awa amatsimikizira kusakhazikika kwa mzere wotumizira ndipo ayenera kuwerengedwa mosamala kuti agwirizane ndi ma frequency ofunikira. Kulephera kutero kungayambitse kuwunikira komanso kutayika kwa kukhulupirika kwa ma siginecha.

Kuphatikiza apo, kukhalapo kwa zosokoneza kapena magwero a phokoso kumatha kukhudza ma frequency opitilira muyeso a bolodi ya PCB yotembenukira mwachangu.Njira zoyenera zotetezera ndi kuyika pansi ziyenera kugwiritsidwa ntchito kuchepetsa zotsatira za magwero a phokoso lakunja ndikuwonetsetsa kugwira ntchito kodalirika pamaulendo apamwamba.

Nthawi zambiri, ma frequency opitilira muyeso a ma board a PCB otembenuza mwachangu amatha kuyambira ma megahertz angapo mpaka ma gigahertz angapo, kutengera kapangidwe kake ndi zofunikira pakugwiritsa ntchito.Opanga ndi mainjiniya odziwa zambiri a PCB akuyenera kufunsidwa kuti adziwe kuchuluka kwafupipafupi kwa projekiti yanu.

Powombetsa mkota, mafupipafupi oveteredwa ndi gawo lofunikira poganizira matabwa a PCB otembenukira mwachangu.Imatsimikizira maulendo apamwamba kwambiri omwe chizindikiro chikhoza kufalitsidwa modalirika popanda kusokoneza kapena kutaya chizindikiro. Pogwiritsa ntchito zida zothamanga kwambiri, kugwiritsa ntchito masanjidwe olondola, kuyang'anira mizere yotumizira, ndikuchepetsa kusokoneza, mainjiniya amatha kuwonetsetsa kuti ma board a PCB otembenuza mwachangu akugwira ntchito modalirika kwambiri pamafuridwe ofunikira.