Stud Bumping Gold Wire
For all types of bumping applications
K&S gold stud bumping wire provides versatility for all types of bumping applications including standard stud, coined, and stacked bumps. Available in either 2N or 4N compositions, it delivers consistent bump height and long-term bond stability.
Standard Mechanical Properties
Wire Selection Matrix
| Properties | 4N (99.99% Au) | 2N (99% Au) |
| Tail Height |
Lower |
Higher |
| Tail Consistency |
Excellent |
Excellent |
| Bondability |
Excellent |
Good |
| Shear Strength Level |
High |
Higher |
| Sensitive Pad Applications |
Excellent |
Good |
| Long Term Bond Stability |
Good |
Good |
| Use as Conventional Ball Bond Wire |
Yes |
No |
| Conductivity (µ ohm cm) |
2.3 |
3.2 |
| K&S Stud Bump Gold Wire |
AW9 |
AW6 |
|