Madalaivala Osasunthika komanso Osinthika a PCB: Chitsogozo Chokwanira

Mu blog iyi, tiona zinthu zomwe zimakhudza okhwima ndi kusintha ndalama PCB Mokweza dera bolodi kupanga ndi kukhathamiritsa wanu dera mtengo kupanga bolodi.

Ma board osindikizira (PCB) ndi mbali yofunika kwambiri ya pafupifupi zida zonse zamagetsi zomwe timagwiritsa ntchito masiku ano. Kaya ndi mafoni athu a m'manja, ma laputopu, ngakhale zida zapakhomo, ma PCB amatenga gawo lofunikira popereka kulumikizana ndikupatsa mphamvu zida izi. Komabe, ndalama zopangira PCB zimatha kusiyanasiyana kutengera zinthu zosiyanasiyana.

Kuvuta kwa mapangidwe:

Chimodzi mwazinthu zazikulu zomwe zimakhudza mtengo wa PCB ndizovuta kupanga. Mapangidwe ovuta kwambiri, amakwera mtengo wopangira. Mapangidwe ovuta nthawi zambiri amafunikira maulendo apamwamba komanso ovuta, omwe amafunikira luso lapadera lopangira komanso nthawi yowonjezera. Chifukwa chake, zovuta zamapangidwe ziyenera kuganiziridwa pakuyerekeza mtengo wa PCB.

Zosankha:

Chinthu china chofunikira chomwe chikukhudza mtengo wa PCB ndikusankha zinthu. Ma PCB okhwima nthawi zambiri amapangidwa pogwiritsa ntchito FR-4, chinthu chomwe chimagwiritsidwa ntchito kwambiri choletsa malawi okhala ndi mphamvu zotentha komanso zamagetsi. Komabe, pali kusiyana kwa khalidwe ndi makulidwe a FR-4, zomwe zingakhudze mtengo wonse wa PCB. Ma PCB osinthika, mbali ina, amagwiritsa ntchito zinthu zosinthika zapansipansi monga polyimide. Zidazi ndizokwera mtengo kuposa FR-4, zomwe zimapangitsa kuti pakhale mtengo wapamwamba wa ma PCB osinthika.

Kukula kwa board ndi kuchuluka kwa zigawo:

Kukula ndi kuchuluka kwa zigawo za PCB zimathandizanso kudziwa mtengo wake. Ma board akuluakulu kapena matabwa okhala ndi zigawo zambiri amafuna zipangizo zambiri komanso nthawi yopangira, zomwe zimapangitsa kuti ndalama ziwonjezeke. Kuphatikiza apo, kupanga matabwa okulirapo kungafunike zida ndi zida zapadera, zomwe zimakhudzanso mtengo wonse. Ndikofunikira kulinganiza kukula ndi zofunikira zosanjikiza ndi magwiridwe antchito kuti muwonjezere mtengo.

Kachulukidwe kagawo:

Kuchulukana kwazinthu pa PCB kumakhudza mwachindunji mtengo wake wopanga. Kuchulukirachulukira kwa zigawo kumatanthauza kuti zigawo zambiri zimalongedwa m'mipata yaying'ono, zomwe zimapangitsa kuti pakhale njira zovuta komanso zocheperako. Kupeza kachulukidwe kazinthu zambiri nthawi zambiri kumafuna njira zapamwamba zopangira monga kubowola kwa microvia ndi ma vias odzaza, zomwe zimawonjezera mtengo wonse wa PCB. Chifukwa chake, ndikofunikira kuti pakhale mgwirizano pakati pa kachulukidwe kagawo ndi mtengo kuti muwonetsetse kuti zikuyenda bwino popanda kusokoneza kwambiri pamtengo.

Chiwerengero cha mabowo:

Pobowola mabowo ndi mbali yofunika ya PCB kupanga monga atsogolere kugwirizana zigawo zosiyanasiyana ndi chigawo okwera kudzera vias. Chiwerengero ndi kukula kwa mabowo obowoledwa zimakhudza kwambiri ndalama zopangira. Kubowola mabowo akuluakulu ndi ang'onoang'ono, akhungu kapena okwiriridwa, ndi ma microvias onse amabweretsa ndalama zambiri chifukwa cha nthawi yowonjezera komanso zovuta zomwe zimafunikira pakubowola. Kuti mukhale ndi mgwirizano pakati pa ntchito ndi mtengo, chiwerengero ndi mtundu wa mabowo obowola ayenera kuganiziridwa mosamala.

Chithandizo chapamwamba:

Kukonzekera pamwamba ndi gawo lofunikira pakupanga kwa PCB kuti muteteze mikwingwirima yamkuwa ku okosijeni ndikuwonetsetsa kusungunuka. Pali njira zingapo zochizira pamwamba zomwe zilipo monga HASL (Hot Air Solder Leveling), ENIG (Electroless Nickel Immersion Gold) ndi OSP (Organic Solderability Preservative). Njira iliyonse yokonzekera pamwamba imakhala ndi ndalama zosiyana, zomwe zimatsimikiziridwa ndi zofunikira zakuthupi ndi ntchito. Mukasankha kumaliza koyenera kwa PCB yanu, ndikofunikira kuwunika magwiridwe antchito ndi bajeti.

Kuchuluka kwa dongosolo:

Kuchuluka kwa dongosolo la PCB kumakhudza mtengo wonse. Kuchulukirachulukira kwadongosolo nthawi zambiri kumabweretsa chuma chambiri, pomwe ndalama zopangira zida zimachepetsedwa. Izi ndichifukwa choti opanga amatha kukhathamiritsa njira zawo zopangira, kuchepetsa mtengo wokhazikitsira ndikuwongolera magwiridwe antchito amaoda ambiri. Kumbali ina, maoda ang'onoang'ono angapangitse ndalama zowonjezera zopangira ndi kupanga, zomwe zimawapangitsa kukhala okwera mtengo kwambiri. Choncho, kuika maoda akuluakulu kumathandiza kuchepetsa mtengo wa ma PCB.

Supplier njira:

Kusankha kwa ogulitsa PCB ndikofunikira kuti muwonetsetse kuti ndi yabwino komanso yotsika mtengo. Otsatsa osiyanasiyana amatha kukhala ndi mitundu yosiyanasiyana yamitengo kutengera ukatswiri wawo, zida, ndi luso lawo lopanga. Ndikofunikira kufufuza ndikuwunika omwe angakhale ogulitsa, poganizira zinthu monga mbiri yawo, ma certification, njira zoyendetsera bwino komanso kuwunika kwamakasitomala. Kugwira ntchito ndi ogulitsa odalirika komanso odziwa zambiri kumathandizira kukwaniritsa bwino pakati pa mtengo ndi mtundu.

Powombetsa mkota

Pali zinthu zingapo zomwe zimakhudza mtengo wa ma PCB okhazikika komanso osinthika.Kuvuta kwa mapangidwe, kusankha zinthu, kukula kwa bolodi, kachulukidwe kagawo, kuchuluka kwa mabowo obowola, kumaliza pamwamba, kuchuluka kwa madongosolo ndi kusankha kwa ogulitsa zonse zimakhudza mtengo wonse. Poganizira mozama zinthu izi ndikuchita bwino pakati pa magwiridwe antchito ndi zachuma, opanga zamagetsi amatha kukweza mtengo wa PCB ndikuwonetsetsa kuti zinthu zawo ndi zapamwamba kwambiri komanso magwiridwe antchito.