The Arlon 85NT Polyimide PCB is a specialized 6-layer military board engineered to withstand severe thermal environments without sacrificing electrical performance. Built with a pure polyimide resin system reinforced with non-woven aramid fibers, this printed circuit board addresses the critical challenge of thermal expansion mismatch in surface mount technology (SMT). It provides exceptional dimensional stability and a low X-Y axis coefficient of thermal expansion ($6 \text{ to } 9 \text{ ppm/}^\circ\text{C}$), ensuring that sensitive components remain securely bonded during extreme thermal cycling. Designed for engineers and procurement managers in high-reliability sectors, this board delivers the ultimate defense against micro-cracking and delamination.

Key Features of Arlon 85NT Polyimide PCB

• Resin System: Pure, non-MDA polyimide formulation for superior thermal endurance.

• Reinforcement: Non-woven aramid fiber fabric for precise dimensional control and reduced weight.

• Layer Count & Thickness: 6-layer precision registration with controlled dielectric spacing.

• Thermal Performance: High glass transition temperature ($T_g$) of $250^\circ\text{C}$ and continuous operating temperature up to $220^\circ\text{C}$.

• Low CTE: Matches the thermal expansion of ceramic chip carriers to prevent solder joint fatigue.

• Standards Compliance: IPC-6012 Class 3 certified for military and aerospace reliability.

Applications

• Aerospace & Defense: Jet engine controls, avionics systems, and missile guidance arrays.

• Down-Hole Drilling: Oil and gas exploration sensors operating in high-temperature wellbores.

• Under-Hood Automotive: Electronic control units (ECUs) positioned near high-heat areas.

• High-Density SMT: Leadless Ceramic Chip Carrier (LCCC) assemblies requiring tailored CTE substrate matching.

Why Choose PCBSYNC

PCBSYNC is a professional PCB fabrication, PCBA, and EMS manufacturer delivering precision-built electronics for aerospace, medical, automotive, industrial, and smart energy applications. We handle everything from rapid prototyping to mass production — including rigid, flexible, and rigid-flex PCBs, full turnkey assembly, component sourcing, AOI and X-ray inspection, and OEM/ODM support. Reliable boards. Consistent quality. From prototype to production — PCBSYNC.

Get a Custom Quote

Partner with an experienced manufacturer equipped to handle advanced polyimide materials. Contact our engineering team today to review your Gerber files and secure a comprehensive fabrication quote.