ka PCB mokhoa oa ho qapa, sebopeho sa PCB le litlhaloso tsa thepa li ka kenyelletsa lisebelisoa tsa motheo tsa boto ea potoloho, laminate le stack ea mantlha ea lera. Likhetho tsena ke ts’ebeliso e ntle ea Design-to-Manufacture (DFM) e tloaelehileng ho bohle. Leha ho le joalo, likhetho tse ngata tsa ho qetela tsa PCB hangata ha li nahane ka ho lekana. Sebakeng seo, ho sebelisoa litekanyetso tsa kamehla tsa software. Leha ho le joalo, ntlha ea ho qetela ke ea bohlokoa haholo. E ama ho tšepahala ha PCB kopano le boto ea potoloho ka ho sireletsa mesaletsa koporo le ho matlafatsa dikgokelo solder. Ho phaella moo, mefuta e ‘maloa ea phekolo ea holim’a PCB e thathamisitsoe ka tlase.

Moeeng o chesang oa soldering (HASL)

HASL e se nang ketapele

Organic Solderability Preservative (OSP)

Silivera ea ho qoelisoa (Au)

Lebese la ho Koalloa (Sn)

Lisebelisoa tsa nickel tse se nang motlakase (ENIG)

Nickel e se nang motlakase le khauta e qoelisoang ea lik’hemik’hale ea palladium (ENEPIG)

Electrolytic khauta e rekisoang

Electrolytic khauta e thata

Ho etsa khetho e nepahetseng bakeng sa moralo oa hau ho hloka ho utloisisa phapang pakeng tsa mefuta e teng.

1. Lead-free solder-khomarela melao ea Thibelo ea Lintho Tse Kotsi (ROHS).

2. Ho sebetsana le maikutlo-ho bonolo ho silafatsoa kapa ho senyeha ka lebaka la ho sebetsa.

3. Wire bonding-e ka theha khokahanyo e ntle ea terata.

4. Pitch e nyane-e ka sebelisoa bakeng sa likarolo tse nyane tsa molumo, joalo ka bolo ea grid array (BGA).

5. Tšebeliso ea lebitso-sebelisa lebitso joalo ka lebitso.

6. Shelf ea bophelo-ka bophelo bo botle ba sethala, e ka bolokoa nako e fetang likhoeli tse tšeletseng.

7. Litšenyehelo tse eketsehileng-hangata li eketsa litšenyehelo tsa tlhahiso ea PCB.

Hona joale, ka sete ea litšobotsi tsa papiso, re ka rarolla bothata hamolemo hore na ho sebelisoa mofuta ofe oa PCB.

Papiso ea mefuta ea phekolo ea holim’a PCB

Litšobotsi tse ka holimo ke tsa bohlokoa haholo ‘me li ka sebelisoa ho u thusa ho khetha mofuta o motle oa phekolo ea holim’a PCB. Leha ho le joalo, o lokela ho buisana le moetsi oa konteraka (CM) ho utloisisa phapang e itseng ea litšenyehelo le lintlha tse ling tse ka amang qeto ea hau, joalo ka nako e eketsehileng ea ho fetola.