Kumakhompiyutha enkumbulo yamakhompiyutha nasemakhadini emidwebo, singabona umugqa wamacwecwe egolide athintekayo, abizwa ngokuthi “iminwe yegolide”. In PCB imboni yokuklama neyokukhiqiza, iGold Finger, noma i-Edge Connector, isetshenziswa njengebhodi elisebenzisa i-Connector Connector. Okulandelayo, ake siqonde indlela yokucubungula neminye imininingwane yomunwe wegolide ku-PCB.

Ukwelashwa komhlaba we-Goldfinger PCB

I-1, i-electroplating nickel igolide: ukujiya kuze kufike ku-3-50U “, ngenxa yokuqhutshwa kwayo okuhle kakhulu, ukumelana ne-oxidation nokuqina kokugqoka, kusetshenziswa kakhulu kusidingo sokuvama ukuxhuma nokukhipha i-PCB ye-goldfinger noma isidingo sokuvama ukufeza ukungqubuzana kwemishini Ebhodini le-PCB, kepha ngenxa yezindleko eziphezulu zokufakwa kwegolide, kusetshenziswa kuphela kwinqubo yendawo yokufaka igolide efana ne-goldfinger.

2, insimbi esindayo, ukujiya okwejwayelekile 1 u “, kufika ku-3 u“ ngenxa yokuhamba kwayo okungaphezulu kwamandla kagesi, ubushelelezi nokuqina, kusetshenziswa kabanzi njengezinkinobho, ukubopha i-IC, ukwakheka kwe-BGA kwe-PCB ephezulu kakhulu, i-PCB ye-goldfinger yokugqoka Izidingo zokusebenza okungavinjelwe aziphezulu, futhi zingakhetha yonke inqubo yezedoary yepuleti, futhi izindleko zenqubo izindleko zenqubo yegolide kagesi ziphansi kakhulu. Umbala wosinki wegolide uphuzi ngokusagolide.

PCB igolide imininingwane ngomunwe ukucutshungulwa

1) Ukuze wandise ukumelana nokugqoka kweminwe yegolide, iminwe yegolide imvamisa idinga ukufakwa ngegolide eliqinile.

2) Umunwe wegolide udinga ukugqagqana, imvamisa i-45 °, amanye ama-engeli afana ne-20 °, 30 °, njll. Uma kungekho chamfering ekwakhiweni, kunenkinga; Ukuqhuma okungama-45 ° ku-PCB kuboniswe ngezansi:

3) Umunwe wegolide udinga ukwenza yonke inqubo yokuvula iwelding block block, iPIN ayidingi ukuvula inetha lensimbi;

4) Ibanga elincane phakathi kwamathinki okusinki nosinki besiliva kanti phezulu komunwe yi-14mil; Kunconywa ukuthi iphedi kufanele libe ngaphezu kwe-1mm kude nomunwe, kufaka phakathi i-pad-hole pad;

5) Ungabeki ithusi ebusweni bomunwe;

6) Zonke izingqimba zesendlalelo sangaphakathi somunwe wegolide zidinga ukukopishwa, imvamisa ngobubanzi obungu-3mm; Ungenza ama-coppers womunwe uhhafu kanye nama-coppers womunwe wonke.

D: Ingabe “igolide” legolide lomunwe?

Okokuqala, ake siqonde imiqondo emibili: igolide elithambile negolide eliqinile. Igolide elithambile, imvamisa yokuthambile. Igolide eliqinile, imvamisa liyinhlanganisela yegolide eliqinile.

Indima enkulu yomunwe wegolide ukuxhuma, ngakho-ke kufanele ibe nokuqhuba okuhle kagesi, ukumelana nokugqoka, ukumelana ne-oxidation, ukumelana nokugqwala.

Ngenxa yokuthi igolide elimsulwa (igolide) lithambile uma kuqhathaniswa, iminwe yegolide ngokuvamile ayisebenzisi igolide, kodwa ungqimba nje “lwegolide eliqinile (igolide elihlanganisiwe)”, elingatholi kuphela ukuqhutshwa okuhle kukagesi wegolide, kepha futhi lingenza ukuthi ligqoke ukumelana , ukumelana namachibi.

Ngakho-ke i-PCB ayisebenzisanga “igolide elithambile”? Impendulo iyasetshenziswa, njengendawo yokuxhumana yezinye izinkinobho zefoni ephathekayo, ucingo lwe-aluminium Ku-COB (Chip On Board). Ukusetshenziswa kwegolide elithambile imvamisa i-nickel imvula ye-elektriphethi ebhodini lesifunda, ukulawulwa kwayo kobukhulu kunwebeka kakhulu.