Kalata ya Chipangizo cha PCB si chinthu chotsutsana, ili ndi malamulo ena omwe amafunika kutsatiridwa ndi aliyense. Kuphatikiza pa zofuna zambiri, zida zina zapadera zimakhalanso ndi zofunikira zosiyanasiyana.
Zofunikira za ma isint
1) Pasakhale zinthu zapamwamba kuposa 3mm 3mm kuzungulira zopindika / zazimuna, zam'madzi siziyenera kukhala zida zoweta kuzungulira 1.5mm; Mtunda kuchokera mbali inayo ya chipangizocho cha zigawenga kupita kutsidya la chidole cha chidole chiri 2.5 padzakhala zigawo zingapo mkati mwa mm.
2) Pasayenera kukhala zinthu mkati mwa 1mm kuzungulira chipangizo chowongoka / chachimuna. Pamene kumbuyo kwa chiwonetsero cholunjika / chachimuna, cholunjika chachimuna kuyenera kukhazikitsidwa ndi chiwongola dzanja, palibe chomwe chidzayikidwira m'mphepete mwa chiwongola dzanja chikaikidwa mkati 2.5mm kuchokera pansi.
3) Chingwe cha Pulagi chamoyo cholumikizidwa ndi cholumikizira chaku Europe
4) Phare lalitali la mphamvu ya 2mmfb yopereka pini imodzi yolingana ndi nsalu ya 8mm yomwe idaletsedwa kwa nsalu yomwe ili kutsogolo kwa chinsalu chimodzi.
Zofunikira za Astheout za zida zamafuta
1) Pazida za chipangizocho, gwiritsani ntchito magetsi owoneka bwino (monga ma car electolytic a capoctoors, Crystal Oscillators, etc.) kukhala kutali ndi zida zapamwamba momwe angathere.
2) Chipangizo cha mafuta chizikhala choyandikira ndi gawo lomwe layesedwa komanso kutali ndi malo otentha kwambiri, kotero kuti asakhudzidwe ndi mphamvu zotenthetsera ndi mphamvu zofanana ndi zomwe zimayambitsa vuto.
3) Ikani zinthu zosagwirizana ndi kutentha ndi kutentha pafupi ndi mpweya kapena pamwamba, koma ngati sangathe kuyimitsidwa ndi zida zapamwamba, ndikuyenera kuyikidwapo pafupi ndi zida zotenthetsera ndi zida zotenthetsera.
Zofunikira za ma indoout ndi zida za polar
1) Zipangizo za TD ndi polarity kapena zowongolera zimakhala ndi malangizo omwewo m'matumba ndipo amakonzedwa bwino.
2) Kuwongolera kwa Smc pa bolodi kuyenera kukhala koyenera momwe mungathere; Zipangizo za mtundu womwewo zimakonzedwa bwino komanso mokongola.
(Zigawo ndi polarity zikuphatikizapo: Cavactor a Elecrolytic, Aantalum Cavactors, A Diodes, etc.)
Zofunikira za ma indoout zodutsamo
1) Kwa PCBS yokhala ndi mawonekedwe ophatikizika kuposa 300mm, zigawo zolemera siziyenera kuyikidwa pakati pa cb popanga kulemera kwa PCB pakugulitsa. Mphamvu ya chipangizocho.
2) Pofuna kuwongolera kuyika, chipangizocho chikulimbikitsidwa kuti chichitike pafupi ndi gawo la kuyikako.
3) Kutalika kwa magawo atokha kwa zida zanthawi (monga ma samken, etc.) ndikulimbikitsidwa kukhala kogwirizana ndi njira yotumizira.
4) Mtunda pakati pa m'mphepete mwa dzenjeli poyambira chikwangwani ndi qfp, sp, cholumikizira ndi ma bgas onse okhala ndi 20.65mm. Mtunda kuchokera ku zida zina za SMT ndi> 2mm.
5) Mtunda pakati pa thupi la mad - hob show chorlow ndi oposa 10mm.
6) Mtunda pakati pa m'mphepete mwa pad-hoble scalow grow grown ndi mbali yotsatsira ndi ≥10mm; Mtunda wochokera kumbali yosatumiza ndi ≥5mm.
