Linthong tsa likhomphutha tsa likhomphutha le likarete tsa lits’oants’o, re ka bona mola oa lipoleiti tsa khauta tse tsamaisang lintho, tse bitsoang “menoana ea khauta”. In PCB indasteri ea meralo le tlhahiso, Gold Finger, kapa Edge Connector, e sebelisoa e le sehokelo sa boto ka sehokedi sa sehokedi. E latelang, ha re utloisise mokhoa oa ho e lokisa le lintlha tse ling tsa monoana oa khauta ho PCB.

Kalafo e kaholimo ea Goldfinger PCB

1, electroplating nickel khauta: botenya ho fihlela 3-50U “, ka lebaka la ho khanna e ntle haholo, khanyetso ea ho kena moea le ho roala, e sebelisoa haholo molemong oa ho koala le ho ntša PCB ea khauta khafetsa kapa ho hloka khafetsa ho etsa khohlano ea mochini HO Boto ea PCB, empa ka lebaka la theko e phahameng ea ho roala khauta, e sebelisoa feela ts’ebetsong ea khauta ea khauta joalo ka khauta ea khauta.

2, tšepe e boima, botenya ba tloaelo ea 1 u “, ho fihlela ho 3” ka lebaka la ts’ebetso ea eona e phahameng ea motlakase, boreleli le ho ts’ehetsa, li sebelisoa haholo joalo ka likonopo, IC e tlamang, moralo oa BGA oa PCB e phahameng haholo, PCB ea khauta bakeng sa ho roala Litlhoko tsa ts’ebetso ea ho thibela litšebeletso ha li phahameng, hape li ka khetha ts’ebetso eohle ea li-zedoary, ‘me litšenyehelo tsa ts’ebetso ke litšenyehelo tsa ts’ebetso ea khauta ea motlakase e tlase haholo. ‘Mala oa sinki ea khauta o mosehla oa khauta.

PCB khauta monoana dintlha sebetsa

1) Bakeng sa ho eketsa khanyetso ea ho tsofala ea menoana ea khauta, hangata menoana ea khauta e hloka ho tlotsoa ka khauta e thata.

2) Monoana oa khauta o hloka ho ts’oaroa, hangata e le 45 °, maqhubu a mang a joalo ka 20 °, 30 °, jj. Haeba ho se na ho senyeha ha moralo, ho na le bothata; Ho thunya ha 45 ° ka PCB ho bonts’itsoe ka tlase:

3) Khauta ea monoana e hloka ho etsa ts’ebetso eohle e thibelang ho bula fensetere, PIN ha e hloke ho bula letlooa la tšepe;

4) Bolelele bo tlase lipakeng tsa lisenke le lisepa tsa selifi le bokaholimo ba monoana ke 14mil; Ho khothalletsoa hore pad e lokela ho ba hole ho feta 1mm ho tloha monoaneng, ho kenyeletsoa le pitsa e phunyang;

5) U se ke ua beha koporo holim ‘a monoana;

6) Likarolo tsohle tsa lera le ka hare la monoana oa khauta li hloka ho kopoloa, hangata li nang le bophara ba 3mm; E ka etsa kopi ea menoana ea halofo le menoana kaofela.

D: Na “khauta” ke khauta ea monoana oa khauta?

Pele, ha re utloiseng likhopolo tse peli: khauta e bonolo le khauta e thata. Khauta e bonolo, hangata e boreleli. Khauta e thata, hangata e le motsoako oa khauta e thata.

Karolo ea mantlha ea monoana oa khauta ke ho hokela, ka hona e tlameha ho ba le ts’ebetso e ntle ea motlakase, ho apara, ho hanyetsa oxidation, ho hanyetsa kutu.

Hobane khauta e hloekileng (khauta) e batla e le bonolo, menoana ea khauta ka kakaretso ha e sebelise khauta, empa ke lera feela la “khauta e thata (komporo ea khauta)”, e ke keng ea fumana feela motlakase o motle oa khauta, empa hape e ka e etsa hore e roale , Ho hanyetsa oxidation.

Kahoo PCB ha e so sebelise “khauta e bonolo”? Karabo e hlile e sebelisitsoe, joalo ka bokaholimo ba linotlolo tse ling tsa mohala oa mohala, terata ea aluminium ho THE COB (Chip On Board). Ts’ebeliso ea khauta e bonolo ka kakaretso ke pula ea nikele ea khauta ha e khetholla boto ea potoloho, taolo ea eona ea botenya e boreleli haholoanyane.