Ob hom kev kho deg txheej txheem rau Bonding board

Raws li txoj kev kho saum npoo, nws tuaj yeem muab faib ua 2 hom hauv qab no: Immersion Kub, Ni / Pd / Au.

Kub Kub

Lub deposition thickness ntawm nickel yog 120 ~ 240 μinch (kwv yees 3 ~ 6μm), thiab kub yog 2 ~ 4μinch (0.05 ~ 0.1μm)

Qhov zoo: 1. Lub Immersion Kub PCB nto yog heev tiaj tus thiab coplanar, uas yog haum rau kev sib cuag nto ntawm cov yuam sij.

2.Lub solderability ntawm cov nyiaj deposit yog zoo heev, thiab cov kub yuav sai sai yaj mus rau hauv lub molten solder los ua hlau compounds.

Qhov tsis zoo: tus nqi siab, thiab kev tswj xyuas nruj ntawm cov txheej txheem tsis ua haujlwm (nqus hlau nto, nruj kev sib txuas tsis tau, thiab lwm yam) yuav tsum ua kom tiav cov txiaj ntsig zoo. Gilded PCB nto yog ib qho yooj yim los tsim cov txiaj ntsig dub (nickel corrosion), uas cuam tshuam rau kev ntseeg siab ntawm qhov kawg vuam thiab qhov teeb meem ntawm desoldering.

Ni/Pd/Au

Nickel thickness yog 120 ~ 240μInch (txog 3-6 um), lub thickness ntawm palladium yog 4 ~ 2{{10}}μ nti (li 0.1 ~ 0.5 um); Lub thickness ntawm kub yog 1-4 μinch (0.02 ~ 0.1 um)

Qhov zoo: Piv nrog rau immersion kub, npib tsib xee palladium kub tuaj yeem tiv thaiv cov teeb meem kev ntseeg tau zoo los ntawm cov teeb meem dub, thiab siv dav hauv cov khoom nruab nrab thiab qib siab.

Qhov tsis zoo: Txawm hais tias nickel palladium kub muaj ntau yam zoo, palladium yog kim thiab kim. Cov txheej txheem tswj kom nruj.

Kev muaj peev xwm ntawm kev sib koom ua ke boards

AVI tshuab