High Temperature Laminate Characterization
Characterization and modeling of high-temperature laminates for application at 200–250°C is reported to compare and better quantify the mean lifetime based on key functional parameters of via cycling, weight loss, peel strength, and surface insulation resistance (SIR). Life testing and models are applied for via cyclic life, peel strength, and weight loss. Five high-temperature laminates, consisting of three polyimides and two nonpolyimides, were evaluated. The polyimide laminates behaved similarly in via, weight loss, peel strength, and SIR testing with small variances. The nonpolyimides performed longer in via and weight loss. They degraded more rapidly than the polyimides in peel strength and failed in SIR, due to its flame retardant. A comparison of lifetime among the five laminates is presented.