"Masaki Omiya,Miyazaki Takeshi,KIKUO KISHIMOTO,Masazumi Amagi","Effect of Nickel Pad Metallization Thickness on Fatigue Failure of BGA Lead-Free Solder Joint",,"IEEE Tranzaction on Components and Packaging Technologies","Institute of Electrical and Electronics Engineers","Vol. 31","No. 3"," 734-740",2008,Sept.