Pazokumbukira zamakompyuta ndi makadi ojambula, titha kuwona mzere wamagolide agolide, omwe amatchedwa “zala zagolide”. In PCB kapangidwe ndi kapangidwe kazinthu, Gold Finger, kapena Edge cholumikizira, imagwiritsidwa ntchito ngati malo ogulitsira bolodi kudzera pa cholumikizira cholumikizira. Chotsatira, tiyeni timvetsetse njira yogwiritsira ntchito ndi zina za chala chagolide mu PCB.

Chithandizo chapamwamba cha Goldfinger PCB

1, electroplating faifi tambala golide: makulidwe mpaka 3-50U “, chifukwa cha madutsidwe ake abwino kwambiri, makutidwe ndi okosijeni kukana ndi kuvala kukana, chimagwiritsidwa ntchito pofunikanso kuti nthawi zambiri titseke ndi kutulutsa mu goldfinger PCB kapena nthawi zambiri timachita mikangano yamakina PA bolodi la PCB, koma chifukwa chokwera mtengo kwa ma golide, amangogwiritsidwa ntchito pamakina agolidi monga goldfinger.

2, heavy metal, makulidwe achilendo 1 u “, mpaka 3 u” chifukwa cha magwiridwe ake abwino amagetsi, kusalala ndi kuwotcherera, amagwiritsidwa ntchito kwambiri ngati mabatani, omangiriza IC, BGA kapangidwe ka PCB yolondola kwambiri, PCB yagolide -kuletsa zofunikira sizikukwera, komanso kumatha kusankha njira yonse ya zedoary, ndipo mtengo wamachitidwe ndi njira yamagetsi yamagetsi yamagetsi ndiyotsika kwambiri. Mtundu wa lakuya wagolide ndi wachikaso chagolide.

PCB golide mfundo zala processing

1) Pofuna kukulitsa kukana kwa zala zagolide, zala zagolide nthawi zambiri zimafunika kuzipaka ndi golide wolimba.

2) Chala chagolide chimafunikira, nthawi zambiri 45 °, ma angles ena monga 20 °, 30 °, etc. Ngati palibe chamfering pamapangidwe, pali vuto; Kuthamanga kwa 45 ° mu PCB kukuwonetsedwa pansipa:

3) Golden chala ayenera kuchita lonse chipika kutsekereza ndondomeko kutsegula zenera kutsegula, Pin sayenera kutsegula zitsulo khoka;

4) Mtunda wocheperako pakati pamatayala amadzimadzi ndi ma siliva ndi pamwamba pa chala ndi 14mil; Ndikulimbikitsidwa kuti padiyo ikhale yopitilira 1mm kutali ndi chala, kuphatikiza padeti loboola;

5) Osayika mkuwa pamwamba pa chala;

6) Zigawo zonse zamkati mwa chala chagolide zimayenera kupopedwa, nthawi zambiri ndimakulidwe a 3mm; Mungathe kupanga mapulogalamu amphindi theka ndi zala zonse.

D: Kodi “golidi” wagolide wagolidi?

Choyamba, tiyeni timvetsetse mfundo ziwiri: golide wofewa ndi golide wolimba. Golide wofewa, nthawi zambiri wosalala. Golide wolimba, nthawi zambiri amakhala golide wolimba.

Udindo waukulu wa chala chagolide ndikulumikiza, chifukwa chake umayenera kukhala ndi magwiridwe antchito amagetsi, kuvala kukana, kukana makutidwe ndi okosijeni, kukana dzimbiri.

Chifukwa golide woyela (golide) ndi wofewa, zala zagolide nthawi zambiri sizigwiritsa ntchito golide, koma kokha “golide wolimba (golide wophatikizira)”, womwe sungangopeza magetsi abwino agolide, komanso umatha kupangitsa kuti izivala , kukana makutidwe ndi okosijeni.

Ndiye PCB sanagwiritsepo ntchito “golide wofewa”? Yankho lake limagwiritsidwadi ntchito, monga mawonekedwe olumikizana ndi mafungulo ena am’manja, waya wa aluminiyumu Pa COB (Chip On Board). Kugwiritsa ntchito golide wofewa nthawi zambiri kumakhala kachipangizo ka golide pakasinthira pama board oyang’anira, makulidwe ake ndi otanuka kwambiri.