New low coefficient of thermal expansion polyimide for inorganic substrates

B.T. Merriman, John D. Craig, Allan E. Nader, David L. Goff, Michael T. Pottiger, William J. Lautenberger

Proceedings., 39th Electronic Components Conference · 2003 · 15 citations · 1 references

Concepts

Abstract

Recent interest in using polyimides for high-density interconnect applications (HDI) in which multilayer structures are formed has created a need for polyimides that have a coefficient of thermal expansion (CTE) matched to that of the underlying substrate. A polyimide chemistry that allows for a significant lowering of the CTE and subsequent reduction of stress on silicon and ceramic substrates while giving improved dielectric constant

References

1