NPR-3000 Series
Thermosetting Solder Mask for COF
Nowadays, Due to the increase in the amount of information, finer pitch is required for COF substrates.
NPR-3000 series is thermosetting type for COF that has excellent electrical reliability.
Features
- Excellent electrical reliability for ultra-fine pitch of 20um pitch or less.
- It is a low temperature thermosetting type (120°C) and is compatible with the pre-tin plating process.
- Halogen free and RoHS compliant.
- Excellent flexibility.
- Almost no warpage occurs after curing.
- Low bleeding for fine pitch wiring.
Electrical reliability
[Test condition] 85deg.C, 85%RH, DC60V
[Test coupon] S'perflex VS grade which has 25um pitched line plated with Tin.
Bleeding
[Test coupon] S'perflex VS grade which has 25um pitched line plated with Tin.
[Curing condition] 120deg.C for 60min. with box oven.