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O ni nai auala masani togafitiga luga mo prototype laupapa pcb

taimi: 2017-03-06

O le metotia togafitiga luga faaaogaina i proofing laupapa pcb e eseese. Taitasi auala togafitiga luga ei ai lona lava uiga tulaga ese. O le ario vailaau o se faataitaiga, e matua faigofie ona faagasologa. E fautuaina mo soldering taitai-saoloto ma le faaaogaina smt, aemaise lava mo i sala tupe e le aafiaga laina e sili, o le mea sili ona taua o le faaaogaina o ario vailaau mo togafitiga luga, lea o le a faaitiitia tele ai le tau atoa ma le tau maualalo. O le faasologa laiti nei faailoa atu ia te oe i nisi o auala masani togafitiga luga mo proofing laupapa pcb.

1. HASL faalaugatasi ea vevela (taʻua o le apa pasī)

o apa pasī o se auala togafitiga e masani ona faaaogaina i le tulaga muamua o proofing laupapa pcb. O lenei vaevaeina i taitai apa pasī ma taitai-saoloto apa pasī. Tulaga lelei o le apa pasī: Ina ua mavae ua uma le PCB, ua atoatoa wetted le laualuga apamemea (atoatoa ufitia i apa luma soldering), talafeagai mo soldering taitai-saoloto, matua faagasologa maualalo, talafeagai mo asiasiga vaaia ma fua eletise, ma se tulaga maualuga foi ma laupapa pcb faatuatuaina. O se tasi o metotia faamaoniga gaosi.

2. Vailaau Gold limasene (ENIG)

Limasene-auro o se ituaiga o faiga togafitiga luga pcb proofing ipu ma talosaga tele. manatua: le limasene vaega o se vaega uʻamea filogia limasene-phosphorus, lea ua vaevaeina i limasene limasene maualuga phosphorus ma auala-phosphorus e tusa ma le mataupu phosphorus. O le talosaga e ese. Tulaga lelei o auro plated-limasene: talafeagai mo soldering taitai-saoloto; o luga lava mafolafola, talafeagai mo SMT, talafeagai mo suʻega eletise, talafeagai mo le mamanu fesootai ki, talafeagai mo le fusia uaea alumini, talafeagai mo papatusi mafiafia, malolosi e faasaga i osofaiga siosiomaga.

3. auro limasene Electroplated

ua vaevaeina Electroplated auro limasene i "hard gold" ma "auro vaivai",auro faigatad (pei o le: uʻamea filogia auro-cobalt) o loo faaaoga masani i tamatamailima auro (sootaga fesootai mamanu), auro vaivai o le auro lelei. o loo faatatau Electroplated auro limasene i IC laupapa e feaveai (e pei o PBGA). E faapitoa talafeagai mo uaea auro ma fusia uaea kopa. Ae peitai, e talafeagai mo le plating e feaveai IC. O le fusia eria tamatamai lima auro manaomia uaea conductive faaopoopo e ona plated. Tulaga lelei o electroplating proofing laupapa pcb limasene-auro: mamanu talafeagai mo ki fesootaiga ma fusia uaea auro; talafeagai mo suʻega eletise

4. Gold Palladium limasene (ENEPIG)

Limasene-palladium auro e nei amata ona faaaogaina i le fanua o proofing laupapa pcb, ma ua faaaogaina i semiconductors luma. Talafeagai mo le uaea auro ma alumini noatia. Tulaga lelei o proofing ma laupapa pcb auro-limasene-palladium: faaaogaina i le laupapa e feaveai IC, talafeagai mo le fusia uaea auro ma fusia uaea alumini. Talafeagai mo soldering taitai-saoloto; leai se corrosion limasene (ipu uliuli) faafitauli faatusatusa i ENIG; tau itiiti ifo nai lo ENIG ma auro electro-limasene, talafeagai mo se eseese luga faagasologa togafitiga ma i luga o le laupapa.

 I le faaopoopo atu i le ituaiga e tele i luga o le auala gaosi proofing laupapa pcb, e aofia ai foi i le apa vailaau. O lenei ituaiga o togafitiga luga apa vailaau e talafeagai mo le tuuina faalava laina, ma o loo faaaogaina foi. I le galuega faatino gaosi laina lelei, pe ae filifili le auala togafitiga luga luga proofing PCB, e tatau ona e O le tulaga moni, e tusa ai ma le uiga o le auala togafitiga luga, tau tupe, E mafai foi ona filifili laupapa pcb proofing gaosi nofoaga oloa siiatoa.