C4NP for Pb-free solder wafer bumping and 3D fine-pitch applicationsD.Y. ShihB. Danget al.2008ICEPT-HDP 2008Conference paper
50μm pitch Pb-free micro-bumps by C4NP technologyBing DangDa-Yuan Shihet al.2008ECTC 2008Conference paper
Lead free micro bumping - Cost & yield challengesKlaus RuhmerEmmett Hughlettet al.2007EPTC 2007Conference paper
C4NP - First manufacturing & reliability data for high-end FlipChip solder bumping based on IBM's C4NP processKlaus RuhmerEric Laineet al.2006GBC 2006Conference paper