High Electrical Conductivity & Heat Cycle Performance

Replacing the bonding wire material from Al to Cu is one of the solution for better power modules performance. Tatsuta has 2 garades of Cu heavy wire and we can suggest by customer's requirement.

★Soft wire hardness
-Wire hardness of Tatsuta's Cu wire is soft. It shows good bond ability
★High electrical conductivity
-Compared to the conventional Aluminum bonding wire,Tatsuta’s Copper wire shows superior electrical conductivity.
★Higher thermal cycle test
-Tatsuta’s Copper wire shows 10~ times higher cycle counts than Aluminum wire in power cycle test.