N4000-29 from Nelco
The Nelco N4000-29 is an advanced, lead-free, low-CTE, high Tg (3185°C by DSC) multifunctional epoxy dielectric substrate. This material has been designed for use not only in standard multilayer PWB designs, but for today’s toughest, high-performance, lead-free applications.
Key Features of N4000-29
- Low Z-axis expansion
Reduced expansion improves through-hole reliability
Excellent for high layer count assembilies
Designed to withstand multiple reflow excursions and repair operations - High Tg, excellent thermal stability and moisture resistance
Improved lead-free assembly compatibility
Proven IST testing results
Exceptional peel strength
Suitable for high-layer count, sophisticated PWB designs - CAF Resistant
Providing long term reliability in end products - Proprietary resin chemistry
Extremely low Z-CTE
Improved thermal stability, CAF and moisture resistance when compared to traditional FR-4 - Superior electrical properties
Supporting advanced technology PWB designs - Optimized FR-4 processing
Superior rheology providing consistent controlled flow and superior via topography
75 min press at 185°C and 200-300 psi
Applications for N4000-29
- Advanced Lead-Free Assembly Substrate
- Large Format Backplanes
- Tight Tolerance Via to Via Applications
- High I / O Count BGA Substrates
- Extreme Layer Count Multilayers
- Lead-Free DCA Applications
- High Temperature Underhood Automotive
- Telecommunications Infrastructure
- Sophisticated Data Storage Applications
