E-679 (W)
Tg > 170 oC by TMA method
Excellent Through hole reliability
High Heat Resistance (>2000 hr)
Good CAF Restraining Property
Good processability (for drilling / punching)
Suitable for Lead-Free process
Cooperate with Hitachi Chemical
*******************************************
E-679 F(J)
High Tg (170-175 oC by TMA method)
High Heat resistance (288 oC/20 sec dip after PCT-5 hr OK)
Suitable for Lead-Free process
Lower CTE in Z-direction
High Reliability – Superior CAF restraining property
Filler
Cooperate with Hitachi Chemcial
*******************************************
BE-67G (H)
Environment-Friendly
Halogen Free
Adaptable to Lead-free Soldering process
High Reliability
CAF restraining (>1000 hr)
Through hole reliability
Electrical Properties
Low Transmission Loss
Stability of Dk and Df
Adaptable for High Layer count PWB
Lower CTE in Z direction
Cooperate with Hitachi Cheimal