84N is a high performance ceramic-filled polyimide prepreg based on Arlon's 85N pure polyimide system, designed for use in filling etched areas in polyimide multilayers that contain thick copper layers and for filling clearance holes in metal cores. The ceramic filler in the resin serves to reduce shrinkage and inhibit crack formation during through-hole drilling in filled clearance areas.- High Tg polyimide (>250°C) with Thermal Decomposition temperature (Td) >400°C and T300>60 minutes
- Low z-expansion of 1% between 50-250°C offers superior PTH reliability through manufacture, assembly and in service
- Up to 50% or more reduction in cure time compared with traditional polyimide cycles
- Electrical and mechanical properties meeting the requirements of IPC-4101/40 and /41
- Toughened, Non-MDA chemistry resists drill cracking
- Halogen-free chemistry
- Compatible with lead-free solder processing
- RoHS/WEEE compliant
Typical Applications: MLB's that are designed with clearance holes in metal cores or for thick metal powder and ground planes that require the thermal stability of polyimideApplications requiring significant lifetimes at elevated temperatures, such as aircraft engine instrumentation, down hole drilling, under-hood automotive applications, industrial sensor systems and burn-in testing of IC's.Information provided by ARLON Electronic Materials. |
