Pakukhazikitsidwa kwaukadaulo wapamwamba wamtunda, kuchuluka kwa ma CD a PCB bolodi imakula mofulumira. Choncho, ngakhale ena matabwa PCB ndi osalimba otsika ndi kuchuluka ochepa, kudziwika basi matabwa PCB ndi zofunika. Mu kuyendera kwa PCB kozungulira, njira yoyesera ya singano ndi kafukufuku wapawiri kapena njira yoyesera ya singano ndi njira ziwiri zodziwika.

1. Njira yoyesera bedi ya singano

Njirayi imakhala ndi ma probes okhala ndi kasupe olumikizidwa ku malo aliwonse ozindikira pa PCB. Masika amakakamiza kuti afufuze 100-200g kuti awonetsetse kulumikizana kulikonse. Ma probes oterewa amapangidwa limodzi ndipo amatchedwa “mabedi a singano”. Malo oyeserera ndi zisonyezo zoyeserera zitha kukhazikitsidwa ndikuyang’aniridwa ndi pulogalamu yoyeserera. Ngakhale ndizotheka kuyesa mbali zonse za PCB pogwiritsa ntchito njira yoyesera bedi, mukamapanga PCB, malo onse oyeserera ayenera kukhala pamwamba pa PCB. Zipangizo zoyesera pabedi ndizokwera mtengo komanso zovuta kusamalira. Masingano amasankhidwa m’magulu osiyanasiyana malinga ndi momwe amagwirira ntchito.

Pulosesa yoyambira-yayikulu imakhala ndi bolodi lokhala ndi zikhomo zokhala ndi ma 100, 75, kapena 50mil pakati pa malowa. Zipini zimakhala ngati ma probes ndikupanga kulumikizana kwanyumba kwamakina pogwiritsa ntchito zolumikizira zamagetsi kapena mfundo pa bolodi la PCB. Ngati pad pa PCB ikufanana ndi grid yoyeserera, kanema wa polyvinyl acetate, wopangidwa molingana ndi malingaliro ake, amaikidwa pakati pa gridi ndi PCB kuti ipangitse kapangidwe ka ma probes enieni. Kupitiliza kupitilirabe kumatheka ndikufikira kumapeto kwa mauna, omwe amadziwika kuti ma Xy a pad. Popeza netiweki iliyonse pa PCB imawunikidwa mosalekeza. Mwanjira imeneyi, kudziyimira pawokha kumamalizidwa. Komabe, kuyandikira kwa kafukufukuyu kumachepetsa mphamvu ya njira yogona singano.

2. Kafukufuku wapawiri kapena njira yoyesera ya singano zouluka

Woyesa singano wouluka samadalira mtundu wa pini wokwera pamtundu kapena bulaketi. Kutengera ndi dongosolo lino, ma probes awiri kapena kupitilirapo amaikidwa pamitu yaying’ono, yosunthika mwaulere mu ndege ya XY, ndipo malo oyeserera amayang’aniridwa ndi chidziwitso cha CADI Gerber. Ma probes awiriwa amatha kuyenda mkati mwa 4mil wina ndi mnzake. Ma probes amatha kuyenda mosadalira ndipo palibe malire enieni oti angayandikire bwanji. Woyesa wokhala ndi mikono iwiri yomwe imangoyenda kutsogolo ndi kumbuyo kutengera kuyeza kwamphamvu. Bolodi ya PCB imapanikizika motsutsana ndi chitsulo chosanjikiza chomwe chimakhala ngati chitsulo china cha capacitor. Ngati pali gawo lalifupi pakati pa mizere, kuthekera kwake kumakhala kwakukulu kuposa nthawi ina. Ngati pali ma breaker am’mbali, capacitance idzakhala yocheperako.

Pa gridi wamba, gridi yokhazikika yama board ndi zida zakumtunda zokhala ndi zida za pini ndi 2.5mm, ndipo poyeserera iyenera kukhala yayikulu kuposa kapena yofanana ndi 1.3mm. Ngati gridiyo ndi yaying’ono, singano yoyeserayi ndi yaying’ono, yopepuka komanso yowonongeka mosavuta. Chifukwa chake, gridi yayikulu kuposa 2.5mm imasankhidwa. Kuphatikiza kwa woyeserera wapadziko lonse lapansi (woyesa grid woyesa) ndi woyesa singano wouluka kumathandizira kuyesa kolondola komanso kochuma kwama board a PCB othamanga kwambiri. Njira ina ndikugwiritsa ntchito woyeserera wa mphira, njira yomwe ingagwiritsidwe ntchito kuzindikira mfundo zomwe zikupatuka pa gululi. Komabe, kutalika kwakutali kwamapadi okhala ndi mpweya wotentha kumalepheretsa kulumikizana kwa malo oyeserera.

Magawo atatu otsatirawa nthawi zambiri amachitika:

1) Bare board kudziwika;

2) Kuzindikira pa intaneti;

3) Ntchito kudziwika.

Woyesa mtundu waponseponse atha kugwiritsidwa ntchito kuyesa ma board a PCB amtundu umodzi ndi mtundu, komanso ntchito zapadera.