Urutoki rwa Zahabu

Kuri mudasobwa yibuka ya mudasobwa hamwe namakarita yubushushanyo, turashobora kubona umurongo wimikorere ya zahabu itwara, bita "intoki za zahabu". Urutoki rwa Zahabu (cyangwa Edge Connector) mubikorwa bya PCB no mubikorwa byinganda bikoresha umuhuza uhuza nkibisohoka kugirango inama ihuze umuyoboro. Ibikurikira, reka twumve uburyo bwo guhangana nintoki za zahabu muri PCB nibisobanuro birambuye.

Uburyo bwo kuvura hejuru yintoki za zahabu PCB
1. Electroplating nikel zahabu: ubunini bugera kuri 3-50u ”, kubera ubwinshi bwayo, irwanya okiside hamwe no kurwanya kwambara, ikoreshwa cyane murutoki rwa zahabu PCBs isaba kwinjiza kenshi no kuyikuramo cyangwa ikibaho cya PCB gisaba guterana inshuro nyinshi Hejuru, ariko kubera igiciro kinini cyo gusasa zahabu, ikoreshwa gusa muburyo bwa zahabu igice nkintoki za zahabu.

2. Zahabu yo kwibiza: Ubugari nibisanzwe 1u ", kugeza kuri 3u" kubera ubwiza bwayo buhebuje, uburinganire n'ubwuzuzanye, bukoreshwa cyane mubibaho bya PCB bisobanutse neza bifite imyanya ya buto, bihujwe na IC, BGA, nibindi. hamwe nibisabwa birwanya kwambara birashobora kandi guhitamo inzira yose yibiza muri zahabu. Igiciro cyibikorwa bya zahabu yibiza ni bike cyane ugereranije nuburyo bwa electro-zahabu. Ibara rya Immersion Zahabu ni umuhondo wa zahabu.

Gutunganya urutoki rwa zahabu muri PCB
1) Kugirango wongere imbaraga zo kwambara intoki za zahabu, intoki za zahabu mubisanzwe zigomba gushyirwaho zahabu ikomeye.
2) Intoki za zahabu zigomba gutondekwa, mubisanzwe 45 °, izindi mpande nka 20 °, 30 °, nibindi. Niba nta chamfer iri mubishushanyo, hariho ikibazo; 45 ° chamfer muri PCB irerekanwa mumashusho hepfo:

3) Urutoki rwa zahabu rugomba gufatwa nkigice cyose cya mask yo kugurisha kugirango ufungure idirishya, kandi PIN ntikeneye gukingura icyuma;
4) Amabati yo kwibiza hamwe nudupapuro twibiza bya silver bigomba kuba byibuze intera ya 14mil uhereye hejuru yintoki; birasabwa ko padi irenga 1mm uvuye kurutoki mugihe cyo gushushanya, harimo no gukoresha padi;
5) Ntukwirakwize umuringa hejuru y'urutoki rwa zahabu;
6) Ibice byose byurwego rwimbere rwurutoki rwa zahabu bigomba gukata umuringa, mubisanzwe ubugari bwumuringa waciwe ni 3mm nini; irashobora gukoreshwa mugice cya kabiri cyintoki zaciwe umuringa hamwe nintoki zose zaciwe umuringa.

“Zahabu” y'intoki za zahabu ni zahabu?

Ubwa mbere, reka twumve ibintu bibiri: zahabu yoroshye na zahabu ikomeye. Zahabu yoroshye, muri rusange zahabu yoroshye. Zahabu ikomeye muri rusange ni uruvange rwa zahabu ikomeye.

Igikorwa nyamukuru cyurutoki rwa zahabu nuguhuza, bityo igomba kuba ifite amashanyarazi meza, kwambara, kurwanya okiside no kurwanya ruswa.

Kuberako ubwiza bwa zahabu itunganijwe (zahabu) bworoshye cyane, intoki za zahabu muri rusange ntizikoresha zahabu, ariko hejuru ya "zahabu ikomeye (ifumbire ya zahabu)" ni amashanyarazi kuri yo, idashobora kubona neza neza zahabu, ariko nanone itume irwanya imikorere ya Abrasion hamwe na okiside irwanya.

None PCB yakoresheje "zahabu yoroshye"? Igisubizo nukuri harikoreshwa, nkubuso bwo guhuza buto ya terefone igendanwa, COB (Chip On Board) hamwe na wire ya aluminium nibindi. Gukoresha zahabu yoroshye nugushira zahabu ya nikel kumurongo wumuzunguruko ukoresheje amashanyarazi, kandi kugenzura ubunini bwayo biroroshye guhinduka.