Pali njira zingapo padziko wa kusindikizidwa dera bolodi : maliseche pcb bolodi (palibe mankhwala padziko), OSP, Hot Air kukhazikika (kutsogolera malata, kutsogolera-free malata), Plating golide, kumiza golide etc. Izi yoonekera.
Kusiyana golide kumiza ndi Plating golide
Kumiza golide ndi njira mafunsidwe mankhwala. A wosanjikiza mankhwala aumbike ndi mankhwala anachita makutidwe ndi okosijeni-kuchepetsa. Nthawi zambiri, makulidwe a zimakhalanso wandiweyani. Ndi mtundu wa mankhwala faifi tambala-golide-golide wosanjikiza mafunsidwe njira, ndipo akhoza kukwaniritsa nkhungu golide wosanjikiza.
Gold plating amagwiritsa mfundo electrolysis umatchedwanso electroplating. Ena ambiri mankhwala zitsulo pamwamba amagwiritsidwa electroplated.
In the actual product application, 90% of the gold pcb board is the immersed gold pcb board,because the poor solderability of the plated circuit board is his fatal flaw, and it is also the direct cause of many companies to give up the gold plating process!
Kumiza ndondomeko golide anakaika pa pamwamba pa matabwa kusindikizidwa dera ndi mtundu wolimba, kuwala bwino, plating yosalala, ndi solderability wabwino wa faifi tambala golide plating. Kwenikweni izo zikhoza kugawidwa mu magawo anayi: chisanadze mankhwala (kuchotsa mafuta, yaying'ono-etching, kutsegula, pambuyo kuviika), faifi tambala mpweya, golide wolemera, pambuyo chithandizo (zinyalala kusamba madzi, kutsuka Di madzi, kuyanika). Kumiza golide makulidwe ndi pakati 0.025-0.1um.
Gold umagwiritsidwa ntchito mankhwala pamwamba pa matabwa kusindikizidwa dera chifukwa cha madutsidwe ake mkulu magetsi, chabwino makutidwe ndi okosijeni kukana, kutalika kwa moyo wautali. Aliyense ntchito monga matabwa kiyi, golide chala pcb matabwa, etc. The kusiyana kwakukulu pakati pa matabwa golide-yokutidwa ndi matabwa golide-kumizidwa ndi golide plating yovuta. Gold (kumva kuwawa kugonjetsedwa), golide ndi golide zofewa (samavala kugonjetsedwa).
1. The crystal structure formed by Immersion Gold and Gold Plating is different. Immersion Gold is much thicker than Gold Plating. Immersion Gold will be golden yellow and yellower than Gold Plating (this is the method of distinguishing between gold plating and heavy gold plating.) a) Gold plating will be slightly white (nickel color).
2. Kapangidwe galasi popangidwa ndi kumiza golide ndi plating golide ndi osiyana. Kumiza golide mosavuta china chotulutsa kuposa golide plating ndi sadzachititsa kuwotcherera zoipa. Maganizo bolodi immerison golide mosavuta kulamulira, ndipo kungathandize kuti ndondomeko kogwirizana zopangidwa angongole. Pa nthawi yomweyo, chifukwa golide ndi zambiri golide-yokutidwa kuposa golide, golide, atagwira golide chala si wearable (zolakwa za mbale zagolide).
3. Pali yekha faifi tambala-golide pa PAD mu golide-kumizidwa pcb gulu .The chizindikiro kufala mu zotsatira khungu sikumangotikhudza mbendera mu wosanjikiza mkuwa.
4. kumiza golide ndi wandiweyani kuposa kapangidwe golide plating Krustalo, osati zosavuta kupanga makutidwe ndi okosijeni.
5. Ndi kufunika owonjezereka kusindikizidwa dera bolodimolondola processing, mzere m'lifupi, cm wafika 0.1mm pansipa. Gold plating sachedwa golide dera yochepa. The mbale zagolide ali ndi faifi tambala ndi golide pa PAD, kotero si kophweka kutulutsa golide lalifupi dera.
6. kumiza golide yekha ali faifi tambala golide pa PAD, kotero solder kukana pa mzere litakhazi- zambiri amakondanso wosanjikiza mkuwa. polojekiti sikungawononge cm posankha chipukuta misozi.
7. Pakuti zofunika zapamwamba bolodi pcb, amafuna flatness ali bwino, ntchito ambiri kumiza golide , kumiza golide zambiri sizimawoneka pambuyo khamu la wakuda mphasa chodabwitsa. The flatness ndi utumiki moyo wa mbale zagolide aposa wa mbale zagolide.
Choncho panopa mafakitale ambiri amagwiritsa ntchito kumiza ndondomeko golide kubala golide pcb gulu .However, golidi kumizidwa ndondomeko ndi okwera mtengo kusiyana ndi ndondomeko golide-plating (more golide zili), choncho pali ambiri mankhwala otsika-wogulira ntchito njira golide-plating (monga mapanelo mphamvu ya kutali, chidole matabwa).