Table 1 The DZ* of all samples obtained from mass transportation and the slope of the lines in Fig. 2(c).

From: Electromigration Mechanism of Failure in Flip-Chip Solder Joints Based on Discrete Void Formation

Sample

UBM

Solder

DZ* (cm2/s)

Slope

Error of Slope

Cu-SN-L

Ti/Cu/Cu

SN100C

6.87 × 10−11

0.74

0.03272

Cu-SAC-L

Ti/Cu/Cu

SAC1205

1.40 × 10−10

0.58

0.03215

Cu-SAC-H

Ti/Cu/Cu

SAC1205

1.15 × 10−10

0.48

0.02676

Ni-SN-L

E-less Ni/Au

SN100C

4.15 × 10−11

0.78

0.05844

Ni-SN-H

E-less Ni/Au

SN100C

8.36 × 10−11

0.70

0.01541