The Constant, B, related to the failure mechanism is derived from either internal studies or industry
accepted standards, ora B of 1.0 will be used whenever actual failure mechanisms or their B are
unknown. All deratings will be done from the stress voltage to the maximum operating voltage.
Failure rate data from the operating life test is reported using a Chi-Squared statistical model at the
60%_or 90%_confidence level (Cf).