HDI PCB Kugadzira --- Kunyudza Goridhe kurapwa kwepamusoro
Zvakatumirwa:Ndira 28, 2023
Categories: Blogs
Tags: pcb,pcba,pcb musangano,pcb kugadzira, pcb pamusoro kupera
ENIG inoreva Electroless Nickel / Immersion Goridhe, inonziwo kemikari Ni/Au, mashandisiro ayo aita mukurumbira izvozvi nekuda kwekuzvidavirira kwemirairo isina-lead-yemahara uye kukodzera kwayo kune yazvino PCB dhizaini maitiro eHDI nemapako akanaka pakati peBGAs neSMTs. .
ENIG iChemical process inoisa mhangura yakafumurwa neNickel neGoridhe, saka ine yakapetwa kaviri yesimbi yakarukwa, 0.05-0.125 µm (2-5μ inches) yekunyudza Goridhe (Au) pamusoro pe3-6 µm (120- 240μ inches) ye electroless Nickel (Ni) sekupihwa kwazvinoitwa munormative reference.Munguva yekuita, nickel inoiswa pane palladium-catalyzed mhangura, inoteverwa negoridhe inonamatira kune nickel-yakapfatwa nzvimbo nekutsinhana kwemamorekuru.Iyo nickel yekuputira inodzivirira mhangura kubva kune oxidation uye inoita senge yepasi pePCB gungano, zvakare chipingamupinyi chekudzivirira mhangura negoridhe kubva kutamira kune imwe neimwe, uye iyo yakatetepa Au layer inodzivirira nickel layer kusvika iyo soldering process uye inopa yakaderera. kusangana nekuramba uye kunyorova kwakanaka.Ukobvu uhwu hunoramba huchienderana mukati meiyo yakadhindwa wiring board.Iko kusanganiswa kunowedzera zvakanyanya kushorwa nekuora uye kupa yakanakira nzvimbo yekuisa SMT.
Iyo nzira inosanganisira nhanho dzinotevera:
1) Kuchenesa.
2) Micro-etching.
3) Pre-dipping.
4) Kushandisa activator.
5) Post-dipping.
6) Kushandisa nickel isina electroless.
7) Kuisa goridhe rekunyudza.
Kunyudzwa goridhe rinowanzo shandiswa mushure me solder mask yaiswa, asi mune mashoma kesi, inoiswa pamberi peiyo solder mask process.Zviripachena, izvi zvichakwira zvakanyanya mutengo kana mhangura yese yakaputirwa negoridhe uye kwete izvo zvinoburitswa mushure me solder mask.
Iyo dhayagiramu iri pamusoro inoratidza musiyano uripo pakati pe ENIG uye imwe goridhe inopera.
Nehunyanzvi, ENIG ndiyo yakanakira inotungamira-isina mhinduro yePCBs kubvira kwayo yakasarudzika coating planarity uye homogeneity, kunyanya yeHDI PCB ine VFP, SMD uye BGA.ENIG inosarudzwa mumamiriro ezvinhu apo kushivirira kwakasimba kunodiwa kune zvinhu zvePCB senge maburi akazara uye tekinoroji-yakakodzera tekinoroji.ENIG inokodzera zvakare waya (Al) bonding soldering.ENIG inokurudzirwa zvakasimba kune zvinodiwa zvemabhodhi zvinosanganisira mhando dzekutengesa nekuti inofambirana nenzira dzakasiyana dzemagungano seSMT, flip chips, Kuburikidza neHole soldering, waya bonding, uye press-fit tekinoroji.Electroless Ni/Au pamusoro inomira ine akawanda ekudziya ma cycles uye kubata tarnish.
ENIG inodhura kupfuura HASL, OSP, Kunyudza Sirivha uye Kunyudza Tin.Dema pad kana Black phosphorus pad dzimwe nguva inoitika panguva iyo kuunganidzwa kwephosphorous pakati pematanho kunokonzeresa kukanganiswa kwekubatana uye nzvimbo dzakatsemuka.Imwe yakaderera inomuka ndeye isingadiwe magineti maitiro.
Zvazvakanakira:
- Flat Surface - Yakanakira Gungano remhando yakanaka (BGA, QFP…)
- Kuve yakanakisa solderability
- Upenyu Hwakareba (inenge mwedzi gumi nemiviri)
- Kuramba kwakanaka kwekubatana
- Yakanakisa kune gobvu mhangura PCBs
- Inofarirwa nePTH
- Yakanakira flip chips
- Inokodzera Press-fit
- Wire Bondable (Kana Aluminium Wire Ikashandiswa)
- Excellent magetsi conductivity
- Zvakanaka kupisa kupisa
Cons
- Zvinodhura
- Black phosphorus pad
- Kupindira kweElectromagnetic, Yakakosha Chiratidzo Kurasika pane yakakwira-frequency
- Haikwanisi Kuitazve
- Haikodzeri Kubata Bata Mapedhi
Zvinonyanya kushandiswa:
- Complex surface components seBall Grid Arrays (BGAs), Quad Flat Packages (QFPs).
- PCBs ane Mixed Package Technologies, press-fit, PTH, waya bonding.
- PCBs newaya bonding.
- Kuvimbika kwakanyanya kwekushandisa, semuenzaniso maPCB mumaindasitiri uko kurongeka uye kusimba kwakakosha, senge aerospace, mauto, zvekurapa uye zvekupedzisira-vatengi.
Semutungamiri wePCB uye PCBA mupi wemhinduro ane makore anopfuura gumi nemashanu ruzivo, PCB ShinTech inokwanisa kupa marudzi ese ePCB board yekugadzira ine inosiyana pamusoro pekupedzisira.Tinogona kushanda newe kugadzira ENIG, HASL, OSP uye mamwe mabhodhi edunhu akagadziridzwa kune zvaunoda chaizvo.Isu tinoratidzira zvemakwikwi emitengo maPCB esimbi musimboti / aluminium uye yakasimba, inochinjika, yakaoma-inochinjika, uye ine yakajairwa FR-4 zvinhu, yakakwirira TG kana zvimwe zvinhu.
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Nguva yekutumira: Jan-28-2023
