Arlon EMD Introduces 84HP Prepreg to Compliment the 85HP Laminate System

March 31 2021

Arlon Electronic Materials introduces 84HP high-performance 250⁰C Tg temperature polyimide resin prepreg. Arlon developed 84HP as a prepreg bonding companion to Arlon’s 85HP filled pure polyimide resin laminate system. 84HP is designed for use in filling etched areas in polyimide multilayers that contain thick copper metal cores.

A proprietary filler is dispersed within the 84HP and 85HP polyimide resin which serves to reduce shrinkage and inhibit crack formation during lamination and through-hole mechanical drilling processes. This unique formulation has proven benefits such as improved drilling over conventional polyimide resin systems, predictable dimensional stability, and reduction in gouging and glass wicking during hole formation.

Additional benefits include X-Y expansion rates very close to copper (16-18 ppm/⁰C), and very low Z-axis of <1%, the lowest Z-axis expansion of any polyimide in the industry. Arlon’s 84HP is manufactured on 50” wide 106 E-glass matching the grain direction of 85HP. 84HP meets the requirements of IPC-4101/40 and IPC-4101/41.


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