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Cu Pillar % µ-Bump Ag% µ-Bump Ag% (Sn-Ag)

W CMPSilicideHKMGHfOx

SOI/SiGe/Si:C

Cu Seed & Barrier

Metal Cu CMP

Non VisualCrystalline

defects

UBM thickness Waf

erLe

vel

Pack

aging

Cu M

etall

izatio

nGa

teSiG

e,HK

MG

Subs

trate

BOXSiGe SiGe STISiGe

X-RayTechnologies

3D geometry

Metal Cu CMP

XRR

GI-XRF

HRXRD

XRDI

WAXRD

XCD