Bare Cu Bonding Wire

The best solution for cost saving alternative of Au bonding wire.
Bare Cu bonding wire is the best product for cost saving. Tatsuta group has supplied bare Cu bonding wire to the global market for over 30 years. Tatsuta product lineup of bare Cu bonding wire is very unique, we can provide various purity / elements doped bare Cu bonding wire on each customer’s requirement.

 

Ultra High Purity type

Ultra High Purity type
★Ultra high purity (>99.9999%Cu) wire
- Softest FAB hardness
- High reliability (Ultra low contain S,Halogen & No P dopant)

High Purity & Cost Effective Type

High Purity & Cost Effective Type
★High purity (>99.999%Cu) wire
- Soft FAB hardness
- High reliability (Low contain S,Halogen & No P dopant)
- Cost effective (compare with 6NCu)

High Purity & Stable FAB Type

High Purity & Stable FAB Type
★Ultra high purity (>99.9999%Cu) raw material + dopant wire
- Stable FAB shape
- Soft FAB hardness
- High reliability (Ultra low contain S,Halogen)

Normal 4N Type

Normal 4N Type
★Cost effective wire
- Low cost (compare with 6NCu & 5NCu)
- Lower electrical resistivity than Gold
- TC-ER; Stable FAB shape

High Reliability Copper Alloy Wire

High Reliability Copper Alloy Wire
High Reliability Copper Alloy Wire
★High purity (>99.999%Cu) raw material + dopant wire
-Softer FAB than Pd Coated Cu wire.
-Stable FAB size
-Good 2nd bond ability
-High reliability (due to high purity & dopant)