Zambiri zamagetsi zamagetsi zomwe zimapangidwa masiku ano zimapangidwa pogwiritsa ntchito ukadaulo wapamwamba kapena SMT, monga zimatchulidwira nthawi zambiri. Osati popanda chifukwa! Kuphatikiza pakupereka zabwino zambiri, SMT PCB akhoza kupita kutali kuti afulumizitse nthawi yopanga PCB.

Pamwamba paphiri luso

Basic Surface Mount Technology (SMT) Lingaliro lofunikira pakupanga mabowo limapitilizabe kusintha kwakukulu. Pogwiritsa ntchito SMT, PCB sikuyenera kubowolezedwamo. M’malo mwake, zomwe amachita amagwiritsa ntchito phala la solder. Kuphatikiza pakuwonjezera liwiro lalikulu, izi zimapangitsa kuti ntchitoyi ichepetse. Ngakhale zigawo zikuluzikulu za SMT mwina sizingakhale ndi mphamvu yokwera pokhoma, zimapereka maubwino ena ambiri kuti athetse vutoli.

Tekinoloje yakumtunda imadutsa masitepe 5 motere: 1. Kupanga kwa PCB – Iyi ndiye gawo 2 pomwe PCB imatulutsadi ziwalo za solder. The solder waikidwa pa PAD, kulola chigawocho kuti chikhale pa dera board 3. Mothandizidwa ndi makina, zida zake zimayikidwa pamagulu enieni a solder. Idyani PCB kuti muumitse solder 5. Chongani zigawo anamaliza

Kusiyanitsa pakati pa SMT ndi kuboola kumaphatikizapo:

Vuto lomwe lili ponseponse m’makina obowola limathetsa pogwiritsa ntchito ukadaulo wapamwamba. SMT imaperekanso mawonekedwe osinthika chifukwa imapatsa opanga ma PCB ufulu wopanga madera odzipereka. Kukula kwazinthu zazing’ono kumatanthauza kuti zigawo zina zambiri zimatha kukhala pa bolodi limodzi ndipo pamafunika matabwa ochepa.

Zigawo m’makonzedwe a SMT zilibe chotsogolera. Chofupikitsa kutalika kwa mtunda wa pamwamba paphiri, kumachepetsa kufalikira ndikuchepetsa phokoso la ma CD.

Kuchulukitsitsa kwa zigawo zikuluzikulu pagawo lililonse ndikokwera chifukwa kumapangitsa kuti zigawo zikwereke mbali zonse ziwiri.

Ndioyenera kupanga zambiri, motero kuchepetsa ndalama.

Kuchepetsa kukula kumawonjezera kuthamanga kwa dera. Ichi ndichimodzi mwazifukwa zazikulu zomwe opanga ambiri amasankhira njirayi.

Mavuto apadziko lapansi osungunuka osungunuka amakoka chinthucho kuti chizigwirizana ndi pad. Izi zimakonzanso zolakwika zilizonse zomwe zitha kuchitika poyika zinthu.

SMT yatsimikizika kukhala yolimba pakakhala kugwedera kapena kuthamanga kwambiri.

Zigawo za SMT nthawi zambiri zimakhala zotsika mtengo kuposa mbali zina zofananira.

Chofunika kwambiri, SMT imatha kuchepetsa nthawi zopanga chifukwa palibe pobowola pakufunika. Kuphatikiza apo, zigawo za SMT zitha kuyikidwa pamlingo wa masauzande pa ola limodzi, poyerekeza ndi ochepera chikwi kudzera pamakonzedwe abowo. Izi, zimathandizanso kuti zinthu zizipangidwa mwachangu, zomwe zimachepetsa nthawi yogulitsa. Ngati mukuganiza zakufulumizitsa nthawi zopanga za PCB, SMT ndiye yankho lomveka. Pogwiritsa ntchito kapangidwe ndi kapangidwe ka (DFM) zida zamapulogalamu, kufunika kokonzanso ndikukonzanso ma circuits ovuta kumachepetsedwa kwambiri, kukulitsa liwiro komanso kuthekera kwamapangidwe ovuta.

Zonsezi sizikutanthauza kuti SMT ilibe zovuta zina. SMT ikhoza kukhala yosadalirika ikagwiritsidwa ntchito ngati njira yokhayo yolumikizira magawo omwe amakumana ndi kupsinjika kwamakina. Zida zomwe zimapanga kutentha kwakukulu kapena kupirira katundu wamagetsi ambiri sizingayikidwe pogwiritsa ntchito SMT. Izi ndichifukwa choti solder amatha kusungunuka kutentha kwambiri. Chifukwa chake, kukhazikitsa kozungulira kungapitilize kugwiritsidwa ntchito ngati zinthu zapadera zamagetsi, zamagetsi, ndi zamagetsi zimapangitsa kuti SMT isagwire ntchito. Kuphatikiza apo, SMT siyabwino kuchitira prototyping chifukwa zigawo zikuluzikulu zitha kufunikira kuwonjezeredwa kapena kusinthidwa nthawi ya prototyping, ndipo matumba apamwamba kwambiri amakhala ovuta kuthandizira.

Gwiritsani ntchito SMT

Ndi zabwino zomwe SMT imapereka, ndizosadabwitsa kuti tsopano ndiwopanga kwambiri masiku ano. Kwenikweni atha kugwiritsidwa ntchito mulimonse momwe pakufunika kudalirika kwambiri komanso kuchuluka kwa ma PCBS.