Title :
The thermal degradation and decomposition of brominated epoxy FR-4 laminates
Author :
Yuan, J. ; Packowski, M.A.
Author_Institution :
AT&T Bell Labs., Richmond, VA, USA
Abstract :
The thermal decomposition of a brominated bisphenol A epoxy resin was studied by using a combination of mechanical, thermogravimetric, calorimetric, and infrared spectroscopic methods. Four distinct stages of degradation were identified: (I) slow-rate degradation, (II) charring, (III) stabilization, and (IV) combustion. The thermogravimetric and mechanical changes in each of these stages are correlated with the chemical changes inferred from the evolved gas analysis. The isothermal life of laminates are predicted based on the information obtained
Keywords :
Fourier transform spectroscopy; calorimetry; combustion; infrared spectroscopy; laminates; life testing; printed circuit manufacture; production testing; pyrolysis; thermal analysis; FT infrared spectroscopic methods; bisphenol A epoxy resin; brominated epoxy FR-4 laminates; calorimetric methods; charring; combustion; evolved gas analysis; isothermal life; mechanical changes; printed circuit boards; slow-rate degradation; stabilization; thermal decomposition; thermal degradation; thermogravimetric methods; Circuit testing; Epoxy resins; Infrared spectra; Isothermal processes; Laminates; Printed circuits; Spectroscopy; Temperature; Thermal decomposition; Thermal degradation;
Conference_Titel :
Electronic Components and Technology Conference, 1993. Proceedings., 43rd
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-0794-1
DOI :
10.1109/ECTC.1993.346824
